PLURONIC PE 6400

CAS Number: 9003-11-6 (broad EO/PO block-copolymer registry number; not unique to this commercial grade)
EC Number: No grade-specific EC identifier reliably established; polymer registrations and inventory listings must be verified by jurisdiction
Molecular Formula: Variable polymer composition; representative structure HO–(CH2CH2O)x–(CH(CH3)CH2O)y–(CH2CH2O)z–H
Molecular Weight: Approximately 2,900 g/mol nominal average, not an exact molecular mass
INCI Name: Not established specifically for this industrial grade; closely related EO–PO–EO composition is described in other contexts as Poloxamer 184, subject to grade verification
E Number / INS Number: Not assigned to this industrial surfactant grade
Boiling Point: Not reliably established for the polymer grade; decomposition and thermal behavior require the current SDS
Melting Point: Not a single sharp melting point; historical technical information reports a setting point of approximately 16 °C by DIN 51583
Viscosity: Approximately 1,000 mPa·s, dynamic, at 23 °C (EN 12092; Brookfield, 60 rpm; historical manufacturer technical data)
Density: Approximately 1.05 g/cm³ at 23 °C (DIN 51757, method A; historical manufacturer technical data)

COMMON PRODUCT AND CHEMICAL NAMES

Pluronic PE 6400
Pluronic® PE 6400
EO–PO–EO block copolymer (grade-specific)
Polyethylene oxide–polypropylene oxide–polyethylene oxide triblock copolymer
Poly(ethylene glycol)-block-poly(propylene glycol)-block-poly(ethylene glycol)
Polyoxyethylene–polyoxypropylene block copolymer
Ethylene oxide/propylene oxide block polymer
Related compositional designation: poloxamer 184 / L64-type triblock copolymer (similar nominal structure; do not assume identical supplier specifications, certification, or approved use)

Names such as “EO/PO block copolymer” and the broad CAS number describe a family rather than uniquely identifying the manufacturer’s exact grade. Closely related generic poloxamer designations can assist in understanding chemistry but should not replace the exact commercial name on purchase orders, specifications or safety documents.

WHAT IS PLURONIC PE 6400?

Pluronic PE 6400 is a relatively concentrated, substantially solvent-free, nonionic polyether surfactant supplied in liquid form at ordinary working temperatures. A historical technical bulletin characterizes the grade as a colorless, slightly cloudy liquid and places its concentration at approximately 100%; neither statement should be construed as a batch-specific purity certificate or proof that every manufacturing lot has the same optical appearance.

Unlike a detergent made from a single small molecule, Pluronic PE 6400 consists of polymer molecules with a distribution of chain lengths. The grade is described by average molecular mass, average ethoxylation and characteristic physical-property values rather than by one exact molecular formula. Its central polypropylene oxide (PPO) domain creates affinity for comparatively hydrophobic interfaces, while its polyethylene oxide (PEO) ends support association with water and help stabilize dispersed interfaces and solids.

Pluronic PE 6400 is commercially relevant because detergency and low-foam performance are needed together in recirculating and high-shear equipment. Foam occupying a cleaning vessel can disturb spray delivery, pump operation or rinsing even when the surfactant itself removes soils effectively. A correctly designed system must therefore balance cleaning efficacy, foam management and formulation stability instead of selecting solely by a single foam number.

Pluronic PE 6400 should not be confused with Pluronic PE 6100, PE 6200 or PE 6800. Those grades have different proportions of EO, resulting in different solubilities, cloud points, viscosities and functions. In particular, the much lower-EO members may suppress foam more aggressively, while PE 6400 is recognized for its combination of detergency, dispersion and low foam.

CAS NUMBER, EC / EINECS NUMBER AND CHEMICAL IDENTIFICATION

The broadly applicable CAS number 9003-11-6 refers to polymers formed from ethylene oxide and propylene oxide. Since multiple EO/PO polymers share this registry number, CAS identity alone cannot establish whether an offered material has the EO content, chain architecture, mean molecular mass or physical characteristics associated with Pluronic PE 6400.

A polymer is not accurately described by a single exact formula or precise small-molecule molecular mass. The nominal molar mass of approximately 2,900 g/mol is a mean value used to characterize the grade; a technical buyer may also need hydroxyl value, distribution of molecular masses or another validated identity measurement to compare lots and alternative sources. The historical source describes an approximately 1,750 g/mol PPO center in this particular series and about 40% PEO by mass for PE 6400.

A standardized generic description is EO–PO–EO nonionic triblock copolymer. The chemistry is closely related to materials called poloxamer 184 in the literature, yet industrial-grade Pluronic PE 6400 should not automatically be represented as a pharmaceutical-, personal-care- or compendial-grade poloxamer; specifications, impurity controls and intended-use permissions differ.

No product-specific EC/EINECS entry should be asserted without a verified supplier or registry record. Requirements concerning polymer registration, monomer status, inventory listing and labeling depend on the regulatory system, so a current regional supplier statement is the appropriate purchasing reference.

CHEMICAL STRUCTURE AND MOLECULAR CHARACTERISTICS

The structural model is HO–(EO)x–(PO)y–(EO)z–H, with EO referring to oxyethylene and PO to oxypropylene repeat units. The exact lengths of the blocks vary across molecules and are described statistically, and x and z need not be taken as identical for every individual chain. The polymer contains ether oxygen atoms capable of hydrogen bonding with water as well as methyl-bearing propylene oxide units that make the central segment less hydrophilic.

Nonionic character is important in cleaning mixtures. The surfactant does not rely on a permanent ionic headgroup, so its behavior in water is not controlled by the same counterion effects as sulfonate or sulfate surfactants. This does not mean that the formulation is immune to electrolytes, since salt can still change hydration, cloud point, compatibility and dispersion stability.

The chemical is amphiphilic rather than purely hydrophilic or purely hydrophobic. In dilute solution, some molecules adsorb at interfaces and aggregates may form as concentration and temperature permit. At greater concentrations, intermolecular structures can generate large viscosity increases and sometimes gel-like behavior. Those phenomena are central to equipment design because a fluid nominally described as a pourable surfactant can become much harder to pump after partial dilution.

The approximate 40% EO content is a useful grade-identification parameter, not a universal predictor of all cleaning performance. Comparisons must also consider total molar mass, PPO block size, molecular-mass distribution, temperature and solvent composition.

PHYSICAL AND CHEMICAL PROPERTIES

The following figures are representative historical technical-data values and should be reconfirmed against the current grade specification and certificate of analysis before they are used as acceptance limits.

Physical Form at 23 °C: Liquid; historically described as colorless and slightly cloudy.
Product Concentration: Approximately 100%, as stated for the original commercial grade in historical product information.
Nominal Molar Mass: Approximately 2,900 g/mol (derived from hydroxyl-number characterization).
EO-Derived Fraction: Approximately 40% of the molecule by mass.
Nominal PPO Block Molar Mass: Approximately 1,750 g/mol in the manufacturer’s older grade-nomenclature reference.
Density at 23 °C: Approximately 1.05 g/cm³ (DIN 51757, method A).
Dynamic Viscosity at 23 °C: Approximately 1,000 mPa·s (EN 12092, Brookfield, 60 rpm).
Setting Point: Approximately 16 °C (DIN 51583); this is not a pure-compound melting point.
Cloud Point, EN 1890 Method A: Approximately 60 °C, measured using 1 g surfactant plus 100 g distilled water.
Cloud Point, EN 1890 Method D: Approximately 70 °C under the specified glycol-ether-containing test mixture.
Cloud Point, EN 1890 Method E: Approximately 69 °C under the specified glycol-ether-containing test mixture.
pH: Approximately 7 measured according to EN 1262, Solution B; pH does not meaningfully describe an undiluted polymer in the same way as its specified aqueous solution.
Surface Tension: Approximately 41 mN/m at 23 °C, at 1 g/L in the historical DIN 53914 method with the specified correction.
Wetting Test: Greater than 300 seconds under EN 1772 with 2 g/L soda ash and 1 g/L surfactant at 23 °C; therefore this grade must not be marketed as a particularly rapid wetting agent on the basis of that test.
Water Solubility: Reported soluble in a 10% test mixture in distilled water at 23 °C; concentration and temperature can substantially change appearance and fluidity.
Boiling Point: Not reliably established as a single conventional boiling point.
Flash Point: No verified grade-specific current value included here; consult the current SDS before assigning fire classifications.
Vapor Pressure: No verified grade-specific numeric value available in the source documents used for this profile.
Shelf Life: A historical manufacturer bulletin states at least two years in tightly sealed original packaging under recommended storage conditions; confirm any current guarantee with the supplying party.

The phrase “approximately 100% concentration” is a commercial description of the supplied surfactant rather than a claim of 100.000% analytical purity. Buyers requiring defined water content, oxide residuals or other trace impurities should obtain the appropriate current test methods and specifications.

CLOUD POINT AND TEMPERATURE-DEPENDENT BEHAVIOR

An EO–PO–EO surfactant becomes less strongly hydrated as water temperature rises. At sufficiently high temperature in a defined aqueous test medium, hydration and solvation change enough to produce clouding or phase separation, which is represented by the cloud point. For Pluronic PE 6400, the historical EN 1890 Method A figure is approximately 60 °C; it is not a decomposition temperature or a universal operational ceiling for every formulation.

Different EN 1890 methods use different diluents and concentrations. A result obtained in distilled water should not be compared directly with one from an ethylene glycol monobutyl ether mixture, since solvent environment changes the measured temperature. Hardness salts, alkalinity, surfactant blends and contaminants may shift actual process clouding; these should be tested under production conditions.

The historical bulletin also lists a pronounced decline in neat-product viscosity with warming, with representative values of approximately 1,000 mPa·s at 20 °C, 500 mPa·s at 30 °C, 300 mPa·s at 40 °C, 200 mPa·s at 50 °C and 100 mPa·s at 60 °C. These are approximate historical values, not a recommended operating-temperature schedule. Heating reduces resistance to flow, but compatibility with packaging, material quality and the current SDS should guide actual warming or transfer practices.

The approximately 16 °C setting point and potential low-temperature cloudiness are practical logistics considerations. A cloudy or partly structured container is not by itself evidence of contamination; however, a supplier-approved reconditioning procedure and appropriate quality checks are needed before material showing unusual texture, sediment, odor or color is returned to production.

VISCOSITY DURING DILUTION AND PROCESSING

A defining feature of this grade is the highly non-linear response of its viscosity to water addition. Historical Brookfield data measured at 25 °C show approximately 1,000 mPa·s for neat surfactant, 1,300 mPa·s at 10% water, 30,000 mPa·s at 20% water and 40,000 mPa·s at 30% water; at 40–50% water, values were reported above 100,000 mPa·s. With further water the measured viscosity drops: about 1,000 mPa·s at 60% water, 20 mPa·s at 70% water, and below 10 mPa·s at 80% water under the historical test conditions.

These data describe the water fraction, not the active-surfactant fraction. For example, 20% water means a mixture containing roughly 80% surfactant, and does not mean a conventional 20% active solution. Confusing these definitions could cause errors in dilution design and pumping capacity.

The extreme mid-dilution viscosity means that a normal mixing tank or transfer line may encounter transient gel-like states. The historical guidance recommends stirring the surfactant into the water rather than constructing a mixture by pouring water onto a large mass of neat surfactant. This is a general process-management recommendation from the source document, not a complete validated mixing SOP for every industrial plant.

Scale-up requires tests on the actual vessel and material: addition rate, agitation pattern, starting temperature, total solids, salt content and subsequent ingredients all affect transient viscosity. The designer should consider agitator torque and heat transfer alongside the final viscosity, which may be low even when an intermediate mixture is hard to stir.

SOLUBILITY, ELECTROLYTES AND CHEMICAL COMPATIBILITY

At 23 °C the historical 10% solubility screening reports Pluronic PE 6400 as soluble in distilled water, soluble in the specified 10% hydrochloric acid, and insoluble in the specified 10% caustic soda test. It is also listed as soluble in ethanol and isopropanol; screening in toluene was described as opalescent, while white mineral spirits were not a favorable solvent in that table. These are defined screening tests, not unconditional miscibility statements for all concentrations, temperatures or solvent qualities.

The alkaline-solution result requires particular care. Pluronic PE 6400 can be used in formulated industrial detergents containing alkaline ingredients, but a positive application claim does not erase the measured loss of direct solubility in concentrated caustic test solution. Depending on formulation design, hydrotropes, other surfactants or modified concentration may be needed, and stability must be measured rather than assumed.

Nonionic EO–PO–EO chemistry generally permits blending with anionic, cationic and nonionic surfactants, and the historical source discusses compatibility with certain soluble polyanionic materials. “Generally compatible” refers to absence of a basic ionic incompatibility; it does not guarantee transparent, stable, non-foaming products at every blend ratio.

Temperature cycling, salt contamination and fragrance or solvent addition can shift phase boundaries, cloud points and viscosity. Clarity testing at ambient temperature alone is therefore insufficient for formulations exposed to hot wash cycles, cool warehouses, long storage or variable water quality.

HOW DOES PLURONIC PE 6400 WORK AT THE MOLECULAR LEVEL?

Molecular adsorption begins when the hydrophobic PPO-containing portions associate with an oily or otherwise less water-compatible region while the EO-containing portions remain hydrated. This lowers the interfacial free-energy cost of wetting and can assist breakup and suspension of certain types of soil. The ultimate removal mechanism also depends on mechanical action, builders, alkalinity, contact time and the surface being cleaned.

Once soil is detached, the surfactant can help maintain dispersed droplets or fine particles in the liquid phase and limit their immediate coalescence or redeposition. This dispersion function explains why the grade may improve the handling of sparingly soluble alkaline-earth-metal salts, but it should not be mistaken for strong chelation in the strict stoichiometric sense. No verified calcium-binding constant is assigned here, and inorganic scale prevention must be assessed in the complete formulation.

EO blocks interact strongly with water through ether-oxygen hydrogen bonding; PPO blocks are comparatively less water-loving. As water temperature increases, the hydration state changes, affecting micelles, clouding and viscosity. At elevated concentrations, associative structures and micellar packing can raise the viscosity by orders of magnitude before further dilution breaks down these structures.

Foam behavior is also controlled by interfacial dynamics. A low-foaming surfactant may clean well without supporting a persistent foam film, but this is different from an antifoam actively collapsing foam created by other ingredients. The historical literature associates the strongest antifoam effect with other lower-EO grades, whereas PE 6400 is specifically highlighted for detergency and dispersion.

WHICH INDUSTRIES USE PLURONIC PE 6400?

Product-specific published sources identify food-and-beverage-processing cleaning, professional kitchen hygiene and industrial cleaning as relevant markets. Earlier technical documents also name industrial bottle-washing, mechanical dishwashing, dairy cleaning, cutting and grinding fluids and emulsion-polymerization systems.

These are categories of process use rather than blanket certifications for direct food contact, pharmaceutical processing, cosmetics, drinking-water systems or any particular national chemical approval. A detergent used to wash equipment in a food facility may require a different compliance review from a material that intentionally becomes part of food or contacts food under regulated conditions.

The fit of Pluronic PE 6400 is strongest where a technically balanced nonionic surfactant is required and low foaming during mechanical action is a performance target. Where fast wetting, strongly aggressive antifoam action, or high salt tolerance is the only priority, other surfactants can be more appropriate.

PLURONIC PE 6400 IN INDUSTRIAL DETERGENTS AND MECHANICAL CLEANING

Mechanical cleaning combines chemistry with spray impact, recirculation and rubbing or turbulence. Pluronic PE 6400 is distinguished in historical grade-specific documentation for very good detergency within its polymer family and for relatively little foam under intense agitation. This makes it a candidate when the formulation must remove soils without compromising machine movement or spray-arm efficiency.

The surfactant assists interfacial wetting and dispersion but normally operates as one component within a detergent package. Builders, alkalis, sequestering agents, corrosion inhibitors, water-conditioning ingredients and other surfactants can all affect performance. Thus, the best grade and addition level depend on whether the target is proteinaceous residue, fatty soil, mineral deposits, particulate contamination or a mixed deposit.

An appropriate assessment measures soil removal and rinsing under the same temperature, water hardness, load and mechanical action as the intended operation. Foam height in a static laboratory method is only one screening metric. A detergent may look low foaming at rest but still cause recirculation problems in real equipment, and the opposite can also occur.

PLURONIC PE 6400 IN AUTOMATIC DISHWASHING AND BOTTLE-WASHING

The older manufacturer technical material specifically identifies dishwashers and industrial bottle-washing machines as suitable areas because they involve intense mechanical action. In these systems, excess foam can reduce effective spray performance, change drainage and complicate rinsing. A low-foaming surfactant is therefore assessed partly on whether it permits continuous mechanical cleaning at the process temperature.

Glass and bottle surfaces can carry fats, beverage residues, labels, protein traces or deposits from hard water. PE 6400 may contribute detergency and dispersion, while dedicated rinsing ingredients, builders and process steps tackle other aspects of the problem. Transparent rinse results and avoidance of spots or film require a complete water and chemical balance; the surfactant does not guarantee streak-free surfaces on its own.

Product development should include glass compatibility, foaming under circulation, cleaning of representative soils, drainage and carryover. Where the machine uses elevated alkalinity or concentrated electrolyte, the solubility limit observed in the 10% caustic test warns against assuming that the neat surfactant will always remain clear or stable in a particular detergent concentrate.

PLURONIC PE 6400 IN DAIRY AND FOOD-PROCESSING EQUIPMENT CLEANING

Food and beverage processing equipment is an explicitly identified use environment for this commercial grade, and earlier technical literature additionally mentions dairy cleaners. The surfactant can aid removal and suspension of organic soils during controlled industrial cleaning. Because protein, fat and mineral fouling often occur together, the surfactant's contribution must be evaluated with the rest of the alkaline or acidic cleaning system.

The presence of a surfactant in a food-processing detergent does not demonstrate that the surfactant is food grade or permitted as a directly added food ingredient. Cleaning chemicals must be chosen for the facility's process, validated rinse practices, material compatibility and applicable local rules. Cleaning validation, residue measurements and compatibility checks belong to the plant's own quality framework.

In circulation cleaning, the important endpoints may be deposit removal, foam control, pump stability and rinseability rather than visual foam suppression alone. The manufacturer has historically discussed these EO–PO–EO materials for demanding cleaning settings, but any specific CIP recipe, use concentration or contact temperature requires actual process testing.

PLURONIC PE 6400 FOR HARD-WATER SALT DISPERSION

Pluronic PE 6400 is noted in historic manufacturer documentation for a high capacity to disperse sparingly soluble calcium and magnesium salts. This can matter because finely divided inorganic materials may deposit on cleaned surfaces, redistribute during rinsing or combine with oily deposits to produce difficult residues. Dispersion helps maintain small solids in the liquid phase long enough to be carried out of the equipment.

Dispersion is not the same as complete chemical sequestration. Chelants bind certain dissolved metal ions through defined coordination chemistry, while dispersants may interact with surfaces of insoluble particles and limit their agglomeration or redeposition. A formulation may require both functions. Comparing PE 6400 with a polycarboxylate dispersant or a chelating agent as if they were chemically equivalent would be misleading.

A convincing hard-water performance trial should use known calcium and magnesium levels, target temperature, expected detergent alkalinity and realistic soils. Measurements might include suspended-solids stability, deposit mass, surface clarity and filter behavior. Results from soft water should not be treated as proof of hard-water resistance.

PLURONIC PE 6400 IN METALWORKING AND MECHANICAL FLUIDS

Historical manufacturer documentation specifically refers to cutting and grinding fluids for metal, where the grade can serve as a lubricant and coolant component. Its nonionic polymer architecture offers a combination of liquid compatibility and interfacial effects that can contribute to the handling of mechanical contact and fluid circulation. It must not, however, be interpreted as a replacement for the full lubricant, corrosion-inhibitor and biological-control package of a metalworking fluid.

Working-fluid performance depends on metal substrate, hardness, machining severity, emulsion composition, temperature and filtration. Foam is an operational concern in high-flow systems, but the grade’s behavior in neat liquid should not be extrapolated directly to an emulsified cutting fluid. Testing is needed for corrosion response, emulsion stability, wetting, tramp-oil separation and tool/workpiece cleanliness.

The older publication describes the broader polymer family as usable in lubrication and dispersion applications. For this grade, the cutting/grinding-fluid use is an application lead for industrial evaluation, not a claim that every formulation containing the product automatically meets machining-fluid certification requirements.

PLURONIC PE 6400 AS AN EMULSIFIER IN POLYMERIZATION

An additional application specifically mentioned for the grade in historical technical literature is emulsification in polymerization processes. EO–PO–EO chains can adsorb at interfaces involving monomers and water and can contribute steric stabilization where an aqueous dispersion is required. This behavior is related to ordinary surfactant emulsification, although polymerization introduces extra constraints on particle formation and stability.

The usefulness of the surfactant depends on monomer composition, phase ratio, electrolyte content, initiation system, mechanical agitation and desired particle-size profile. Polymerization conditions may alter surfactant partitioning and the structure of dispersed particles. No universal stabilizer concentration, polymerization temperature, or addition sequence is supplied because those values are not established for a specified process here.

Formulators should also consider whether a nonionic stabilizer is suitable alongside anionic or other surfactants, and whether the final film or polymer requires particular water-resistance, foaming or surface characteristics. Compatibility in a polymerization batch is a process result, not something that a generic chemical name alone can establish.

FOAM CONTROL: LOW FOAM IS NOT IDENTICAL TO DEFOAMING

The product family is described as low foaming, but members with different amounts of EO have noticeably different foam-suppression capacities. Historical literature explicitly treats some less-ethoxylated products as exceptionally strong antifoams; Pluronic PE 6400, in contrast, is prominently identified for detergency during intensive mechanical cleaning. Its 40% EO level contributes to a more hydrophilic behavior than PE 6100 and must be considered when selecting a foam-control system.

A useful comparison distinguishes foam formation during cleaning, existing foam destruction and foam stability after other surfactants have been added. A formulation containing PE 6400 may be low foaming as a whole, but it should not be marketed as a universal silicone-free defoamer without process-specific tests. Protein, starch, oil, hardness ions and machine design may influence the apparent outcome.

The historical technical publication warns that laboratory foam procedures do not always predict machine behavior and discusses detergent-machine testing under relevant loads. A specification based on one test method must therefore be interpreted as a screening result at that concentration and temperature, rather than a guaranteed operational performance level.

INDUSTRIAL APPLICATIONS AND PERFORMANCE EVALUATION

The best evaluation compares cleaning activity, soil suspension, surface rinseability, compatibility and foam simultaneously. A product may clean aggressively but leave a problematic residue; it may have acceptable foam at ambient temperature but become cloudy in a hotter bath. Multiple test conditions are necessary to represent the actual application rather than a convenient single-point laboratory result.

In automated equipment, it is useful to examine performance at startup, during steady-state heating, after addition of make-up water and near the end of a cleaning cycle. A change in cloud point or viscosity can alter how surfactants disperse as concentration changes. Water hardness and mineral-content variation should be included where the operation uses municipal or process water rather than controlled laboratory-grade water.

Technical screening can also compare the grade with a lower-EO block copolymer, an alcohol alkoxylate and a specialty wetting agent. Such comparisons should use equivalent surfactant concentration, the same temperature and the same mechanical conditions; measuring in different protocols would give an unreliable product ranking.

WHAT PROBLEMS CAN PLURONIC PE 6400 HELP ADDRESS?

In a suitably engineered detergent, Pluronic PE 6400 can help combine cleaning action with limited foam formation. This addresses applications where strong agitation is necessary for soil removal but foam occupies useful vessel volume or interferes with spray contact. The grade may also reduce the tendency of suspended contaminants to collect into larger particles during the wash.

Its dispersing action toward certain calcium and magnesium salts can be useful where hard-water deposition contributes to residue formation. However, it is not a universal water softener and should not be substituted without evidence for all sequestrants or deposit-control polymers. When the water has high ionic strength, the product’s cloud point and concentrate stability remain important constraints.

The product can contribute to stable emulsion or dispersion systems for certain industrial processes. Its role should be understood as a formulation component and validated for the actual media, temperature and downstream quality requirements. No guarantee of complete foam elimination, microbiological sanitation, corrosion prevention or regulatory compliance follows from using the product.

IMPORTANT CONSIDERATIONS WHEN USING PLURONIC PE 6400

Pluronic PE 6400 may appear easy to pump when received, but intermediate mixtures can be dramatically more viscous than either the neat product or its final dilute solution. The historical data reporting values above 100,000 mPa·s in certain mixtures mean a conventional low-shear transfer strategy may fail if the material is diluted incorrectly. Mixing design therefore merits specific laboratory and pilot-scale trials.

Temperature sensitivity should be treated as a controlled variable rather than a simple rule that hotter is better. Warming the neat surfactant generally reduces viscosity, while the aqueous cloud point introduces a different constraint at elevated temperature. Salt and other additives can move the clouding threshold. Thus, a process may become easier to pump while simultaneously becoming less optically homogeneous.

The solubility results also warn that strongly alkaline liquid concentrates cannot automatically be assumed to tolerate any surfactant loading. A concentrate that initially looks clear may separate after prolonged storage or temperature cycling. Compatibility trials should assess both fresh and aged mixtures, with attention to intended packaging and exposure to light or heat.

Grade identity and safety documents must be tied to the actual supplier. A generic CAS number alone is insufficient for substituting one polymer grade for another, and historic technical bulletins are useful for technical orientation but cannot replace current contractual specifications.

STARTING FORMULATION AND PROCESS DEVELOPMENT APPROACH

No universal Pluronic PE 6400 recipe is provided because the appropriate use level depends on a specified detergent, circulation system or industrial dispersion. An evidence-based starting approach is to define the operating variables—target soil, substrate, water quality, operating temperature, circulation intensity, rinse targets and required chemical compatibility—before selecting trial concentrations.

A small-scale program can compare a control blend with otherwise identical blends containing PE 6400 at carefully selected candidate levels. Compare removal of representative oily, particulate and mineral soils alongside foam volume, redeposition and final surface condition. If the formulation is a concentrated liquid, test viscosity during the entire preparation path, not merely in its finished state.

Older technical guidance recommends adding the surfactant with stirring into water when preparing aqueous solutions, because reversing the dilution order can cause problematic high viscosity. This is an orientation for process design, not proof that a particular blending sequence is safe or validated for every ingredient combination. Before scale-up, verify agitator loading, temperature management, line-pressure margins and the potential for transient thickening.

Where a high-electrolyte or strongly alkaline system is intended, conduct accelerated and real-time stability tests at relevant cold, ambient and warm temperatures. Confirm phase clarity, turbidity changes, active-content distribution and package compatibility as appropriate. The same approach applies to polymerization emulsions and cutting fluids, where particle size or emulsion stability may dominate the evaluation.

SIMILAR PRODUCTS AND ALTERNATIVES

Pluronic PE 6100 is a related lower-EO block copolymer with approximately 10% EO and substantially different water solubility and foam behavior. Pluronic PE 6200 is described with approximately 20% EO and a nominal molar mass near 2,450 g/mol, and is historically emphasized as a low-foaming wetting agent. Pluronic PE 6800 has a much higher EO fraction and is supplied in powdered form in historic sources, with different handling and solubility characteristics.

Pluronic PE 6400 is specifically characterized by approximately 40% EO, a mean molar mass near 2,900 g/mol and a combination of detergency, low foam and calcium/magnesium salt dispersion. These distinctions matter more than the shared block-copolymer family name. A substitute may provide less foam at the expense of water solubility, or greater water affinity with different thickening behavior.

Low-foaming alcohol alkoxylates are another formulation option. They have different hydrophobic groups and may offer alternative wetting, cloud-point and biodegradation profiles depending on their exact chemistry. Specialty hydrotropes, chelants and polymeric dispersants address overlapping but not identical problems and are generally co-formulants rather than direct functional equivalents.

A substitution decision should be supported by matching grade identity, testing temperature-dependent solubility, concentration-dependent viscosity, actual foam and cleaning under realistic equipment conditions, and reviewing regulatory and safety documentation. The label “nonionic surfactant” is not by itself a sufficient interchangeability criterion.

INITIAL FORMULATION APPROACHES FOR PLURONIC PE 6400

The following examples explain how Pluronic PE 6400 may be assessed during laboratory formulation and process development. Pluronic PE 6400 is a liquid, low-foaming, nonionic propylene oxide/ethylene oxide (PO/EO) block copolymer with approximately 40% ethylene oxide-derived content. Manufacturer literature lists industrial cleaning, food and beverage processing, and professional kitchen hygiene among the application areas relevant to Pluronic PE 6400. The product's balance of hydrophilic and hydrophobic blocks can also justify exploratory evaluation as a co-emulsifier in a suitable model system.

These examples are preliminary experimental starting points, not validated commercial recipes, manufacturing specifications, regulatory approvals or finished-product instructions. Unless otherwise stated, concentrations are expressed as weight percentages (% w/w), and demineralized water is adjusted to achieve 100%. The supplied grade, other raw materials, water hardness, temperature, mechanical shear and soil composition may materially change the behavior of Pluronic PE 6400. Review the current manufacturer technical data sheet and safety data sheet before laboratory work.

For Pluronic PE 6400, published reference information indicates an approximate cloud point of 60 °C under EN 1890 Method A conditions; a cloud point is test-method-dependent and does not guarantee the behavior of a multicomponent formulation. Accordingly, assess clarity, phase stability and foam formation at actual use and storage temperatures. In each screening series, vary the Pluronic PE 6400 concentration while keeping other components and test conditions constant, and include a no-additive reference when useful.

EXAMPLE 1: PLURONIC PE 6400 CONCENTRATION SCREENING IN A LOW-FOAM ALKALINE CIP CLEANING SOLUTION

Objective: Evaluate how the addition level of Pluronic PE 6400 affects foam accumulation, wetting, removal of standardized processing soils and compatibility in a mildly alkaline cleaning-in-place (CIP) working solution.

Initial screening composition (laboratory working solution, % w/w):

Pluronic PE 6400: approximately 0.05%, 0.15% and 0.30% in separate test batches.

Sodium carbonate: approximately 0.60%, held constant.

Trisodium citrate dihydrate: approximately 0.30%, held constant.

Sodium gluconate: approximately 0.20%, held constant.

Alkyl polyglucoside (APG) surfactant solution: approximately 0.30% as supplied, held constant.

Dipropylene glycol methyl ether (DPM) or a compatible water-miscible solvent: approximately 0.50%, held constant.

Demineralized water: quantity sufficient to 100%.

Initial circulating temperature: approximately 30–50 °C, held constant within each comparison.

Circulation rate, equipment geometry, cleaning duration, soil quantity and rinse procedure: held constant.

These levels provide an exploratory screening range for Pluronic PE 6400; they are not a qualified cleaning protocol for operational food-production lines. The degree of foaming depends strongly on the other surfactants, water composition and circulation energy. Cleaning effectiveness must be established independently of foam height.

Application approach:

1. Charge a clean, chemically compatible laboratory tank with most of the demineralized water and begin gentle mixing.

2. Dissolve sodium carbonate, trisodium citrate and sodium gluconate completely under controlled agitation.

3. Add the fixed APG surfactant solution slowly while minimizing unintended air incorporation.

4. Premix Pluronic PE 6400 with the allocated water-miscible solvent if needed, introduce the assigned Pluronic PE 6400 dose and adjust with water to 100%.

5. Record the initial pH, appearance, turbidity and any separation at the chosen operating temperature.

6. Circulate the solution through identical laboratory loops or over standardized stainless-steel coupons carrying the same reproducible soil.

7. Measure foam volume and decay, soil removal, wettability, rinse behavior and visible residues under equal test conditions.

8. Compare each Pluronic PE 6400 level with the control and repeat the most promising concentration after a defined change in water hardness or temperature.

Use splash protection, chemical-resistant gloves, eye protection and appropriate ventilation. Confirm material and seal compatibility before any practical use. Food-contact applications require separately validated cleaning and rinsing procedures; Pluronic PE 6400 must not be presented as a disinfectant without relevant evidence and authorization.

EXAMPLE 2: PLURONIC PE 6400 RATIO EVALUATION IN A PROFESSIONAL KITCHEN HARD-SURFACE CLEANER

Objective: Study whether Pluronic PE 6400 improves oily-soil removal and wetting while providing acceptable foam, streaking and storage stability in a water-based cleaner for compatible professional kitchen surfaces.

Initial screening composition (laboratory cleaner, % w/w):

Pluronic PE 6400: approximately 0.30%, 0.75% and 1.50% in separate trials.

Low-foaming C9–C11 alcohol ethoxylate or another compatible nonionic cleaning surfactant: approximately 0.50%, held constant.

Sodium xylene sulfonate solution (hydrotrope) or an appropriate alternative: approximately 1.50% as supplied, held constant.

Dipropylene glycol methyl ether (DPM): approximately 2.00%, held constant.

Sodium citrate: approximately 0.40%, held constant.

Sodium bicarbonate: approximately 0.30%, held constant.

Demineralized water: quantity sufficient to 100%.

Target initial evaluation pH: approximately 8–9.5, subject to actual ingredient characteristics.

Test-surface material, cleaner volume, soil loading, dwell time, wiping method and storage conditions: held constant.

The Pluronic PE 6400 concentration is the experimental variable. The accompanying cleaning surfactant and hydrotrope support a meaningful assessment of the complete blend; neither cleaning claims nor transparency should be assumed without direct measurements. A clear formulation may be unnecessary if a stable, purpose-appropriate appearance is acceptable.

Application approach:

1. Transfer most of the demineralized water into a clean vessel and establish slow, uniform agitation.

2. Dissolve the sodium citrate and sodium bicarbonate, and then add the hydrotrope.

3. Introduce DPM and the fixed low-foaming alcohol ethoxylate gradually to limit aeration.

4. Incorporate Pluronic PE 6400 at the selected concentration, mix until uniform and make up the batch to 100% with water.

5. Measure pH, viscosity, clarity or haze, and foam development under a standardized shaking or wiping test.

6. Apply matched doses to stainless steel, glazed ceramic and other confirmed-compatible test panels containing standardized cooking-oil soil.

7. Compare soil removal, wetting, foam persistence, rinseability, streaking and visible film after a fixed number of wipes.

8. Select the best-balanced Pluronic PE 6400 level and check the sample for separation, discoloration and performance drift during controlled storage.

Use the protective equipment required for the complete cleaner and avoid inhalation of spray mist. Evaluate each surface material, coating and food-contact rinsing requirement separately. The model cleaner does not have automatic antimicrobial or food-contact approval.

EXAMPLE 3: PLURONIC PE 6400 CO-EMULSIFIER SCREENING IN A MODEL MINERAL-OIL-IN-WATER EMULSION

Objective: Investigate how different levels of Pluronic PE 6400 influence droplet formation, emulsion stability, viscosity and process foaming in a laboratory oil-in-water (O/W) emulsion containing an inert mineral oil.

Initial screening composition (model laboratory emulsion, % w/w):

Pluronic PE 6400: approximately 0.50%, 1.50% and 3.00% in separate trials.

Light white mineral oil (technical or laboratory grade): approximately 10.00%, held constant.

Compatible nonionic co-emulsifier, such as a selected fatty alcohol ethoxylate: approximately 2.00%, held constant.

Propylene glycol: approximately 3.00%, held constant.

Demineralized water: quantity sufficient to 100%.

Initial processing temperature: approximately 20–30 °C, held constant.

Oil grade, addition rate, mixer type, shear energy, batch volume and storage containers: held constant.

This is an exploratory inert emulsion for comparing interfacial behavior, not a validated metalworking fluid, cosmetic, pesticide, food-contact product or other commercial emulsion. Pluronic PE 6400 is tested as a possible co-emulsifier, and the additional nonionic surfactant remains fixed so that results are attributable to the Pluronic PE 6400 dose. The optimal dose cannot be predicted from ethylene oxide content alone.

Application approach:

1. Place the required mineral oil in a clean vessel and preblend with the fixed nonionic co-emulsifier, confirming compatibility and uniformity.

2. Prepare the water phase separately by combining demineralized water and propylene glycol at a controlled temperature.

3. Introduce the assigned quantity of Pluronic PE 6400 into the selected compatible phase and mix until appropriately uniform.

4. Form a preliminary dispersion by slowly adding the oil phase to the water phase under a defined mixing procedure.

5. Apply the same controlled high-shear schedule to each trial; prevent unnecessary heating or entrainment of air.

6. Measure initial droplet-size distribution, viscosity, appearance, pH, foam volume and any immediate separation.

7. Store equal samples under matched conditions and assess creaming, coalescence, sediment or free-oil formation and changes in droplet size over time.

8. Compare all Pluronic PE 6400 levels with a control to identify a composition that gives acceptable emulsion stability with manageable processing foam.

Handle mixing equipment safely, avoid breathing oil mists and follow the safety data sheets for all ingredients. Test microbiological stability and preservative needs if aqueous samples will be stored. Any practical application requires additional compatibility, toxicological, performance and regulatory assessment.

QUALITY CONTROL AND PURCHASING CRITERIA

An appropriate purchase specification for Pluronic PE 6400 should name the exact grade and document the intended regional supply. Relevant technical information includes visual appearance, mean molecular mass or equivalent identity test, EO-derived fraction, water content if controlled, density, viscosity with method and temperature, and cloud point under a named test procedure. Not every indicator must be an acceptance specification; the contractual list should reflect the actual application.

A technical data sheet (TDS) usually presents representative information and typical performance under described conditions. A safety data sheet (SDS) communicates hazard classification and handling measures for a particular jurisdiction and formulation. A certificate of analysis (COA) records results for a specific batch against defined tests, where those tests are included in the supplier specification. These documents serve different functions and should not be treated as interchangeable.

At receipt, check container identification, seals, color, any unexpected phase layering and batch traceability. A slight cloudiness may be consistent with the historic grade description, but new sediment, unusual odor, suspected water contamination or unexplained viscosity change should prompt technical review rather than automatic acceptance. Retain representative material where batch tracking is relevant.

For procurement, discuss package size, temperature sensitivity during transport, storage conditions, lead time, quantity and availability. No statement in this profile confirms present stock, origin, certificates, exclusivity or delivery conditions from Ataman Kimya.

REGULATORY AND INTENDED-USE CONSIDERATIONS

Pluronic PE 6400 is offered as an industrial nonionic surfactant with established detergent and industrial-processing applications. The fact that it is associated with food-service or food-and-beverage-equipment cleaning does not authorize direct addition to food or automatically confirm food-contact clearance. Such use needs an assessment of the exact intended application, grade, residues and local rules.

Similar chemistry may appear in pharmaceutical or cosmetic-grade poloxamers, but designation similarity does not establish that this industrial material meets a pharmacopeial monograph, an INCI specification, microbiological limits or relevant trace-impurity criteria. Never infer human-use qualification simply from a shared CAS number or polymer family name.

Environmental labels and sustainability statements also require care. The manufacturer’s product listing notes the availability of information for EU Ecolabel evaluation, which is not a universal guarantee that any finished cleaning product automatically earns a label. Finished-product certification depends on other ingredients and product-specific assessment.

All statements on REACH or other national inventory compliance, biodegradability, food-contact status, chemical labeling and transport should be verified from current regional documents for the product actually purchased. Older source material should be used for chemical understanding, not as a substitute for current regulatory declarations.

FIRST AID

Inhalation
For Pluronic PE 6400 aerosol or mist exposure, move the affected person to fresh air and keep them comfortable for breathing. If breathing difficulty, persistent irritation or other concerning symptoms occur, seek medical attention and consult the current SDS; do not assume that a low-volatility polymer mist is automatically harmless.

Skin Contact
After skin contact with Pluronic PE 6400, remove contaminated clothing and wash affected skin thoroughly with water and mild soap. Seek medical advice for persistent redness or irritation, and wash contaminated clothing before reuse. Repeated exposure may need workplace controls even if the undiluted liquid does not produce obvious immediate symptoms.

Eye Contact
If Pluronic PE 6400 enters the eyes, rinse cautiously with lukewarm running water for several minutes, removing contact lenses if easy to do, and continue rinsing. Obtain prompt medical advice if pain, redness, blurred vision or irritation persists, and follow the first-aid directions in the current grade-specific SDS. Do not attempt chemical neutralization in the eye.

Ingestion
If Pluronic PE 6400 is swallowed, rinse the mouth and obtain guidance from a medical professional or poison information service, particularly for a significant quantity or any symptoms. Do not induce vomiting unless explicitly directed by a healthcare professional or current chemical-specific safety guidance. Never give anything by mouth to an unconscious person.

Note to Physicians
Treatment after exposure to Pluronic PE 6400 should be based on observed symptoms and the current supplier SDS, including any grade-dependent or formulation-dependent ingredients. Bring the container label or product documentation for identification where possible; no special antidote or universal clinical protocol is established here.

HANDLING AND STORAGE

Handling
When handling Pluronic PE 6400, avoid direct eye contact, unnecessary prolonged skin exposure and aerosol generation. Establish closed or controlled transfer practices where possible, and use equipment designed to accommodate the product's temperature-sensitive viscosity.

Engineering Controls
For Pluronic PE 6400 operations that generate spray or mist, provide local exhaust ventilation or another suitable exposure-control system. Keep transfer areas clean and account for potentially slippery spills around pumps, hoses and filling points.

Personal Protection
For routine transfer of Pluronic PE 6400, use chemical splash-protective eye equipment and suitable gloves selected from the current supplier SDS and workplace risk assessment. Additional protection may be required when handling hot product, concentrated detergent mixtures or high-pressure equipment.

Respiratory Protection
Where Pluronic PE 6400 is handled without mist formation and exposure limits are controlled, routine respiratory protection may not be required; this cannot be decided solely from the product name. If aerosols could form, evaluate ventilation and the appropriate protective equipment using the current local SDS and exposure assessment.

Storage
Store Pluronic PE 6400 in tightly sealed, suitable containers in a dry, reasonably temperature-controlled area. Historic manufacturer guidance emphasizes protection from excessive heat and prolonged storage at substantially below 20 °C; the historical description recognizes reversible cloudiness or thickening upon cooling, but any reheating must use a current approved procedure and avoid localized overheating.

Materials of Construction
Older Pluronic PE-series technical information mentions specific stainless-steel grades for storage tanks. For Pluronic PE 6400, final compatibility choices for steel, seals, gaskets, pumps and polymeric containers must account for the actual temperature, cleaning chemicals, mechanical stresses and duration of exposure.

Spill Procedures
In the event of a Pluronic PE 6400 spill, isolate the area where needed, prevent slipping, and contain the liquid using suitable compatible absorbent material. Prevent uncontrolled entry into drains or surface waters and dispose of recovered material according to local rules and current SDS instructions.

Environmental Precautions
Do not release bulk Pluronic PE 6400 into natural waters or wastewater networks without appropriate authorization. The fact that a product contains oxygen-rich polyether segments or is described as a surfactant does not by itself prove a particular environmental fate, toxicity threshold or readily biodegradable classification.

Fire Response
Fire-response planning for Pluronic PE 6400 should use the current safety data sheet for the exact grade, storage conditions and surrounding combustibles. Firefighters should employ protective equipment appropriate to the incident, and personnel should avoid inhaling smoke or thermal-decomposition fumes from heated organic materials.

Waste Disposal
Manage Pluronic PE 6400 residues, contaminated absorbents and empty packaging according to composition, regional waste rules and the current SDS. Used cleaning mixtures may contain other hazardous ingredients or process contaminants and should not automatically be classified from the neat surfactant alone.

SAFETY AND TRANSPORT INFORMATION

The available manufacturer technical information is useful for general handling practices but does not supply a verified current region-specific GHS or CLP classification for every commercial delivery. Accordingly, no definitive pictogram, hazard statement, UN number, transport hazard class or packing group is assigned in this profile. Those items must be checked on the current SDS for Pluronic PE 6400 and the applicable transport rules.

Avoid the assumption that a low-foaming nonionic polymer is automatically nonhazardous in all forms. Mist generation, contact with the eyes, handling at elevated temperature and mixing with concentrated detergents can create workplace risks distinct from neat product properties. Furthermore, the physical state and handling of a packaged grade could change in cold weather without indicating a new chemical identity.

The 2005 manufacturer technical bulletin describes general caution against contact with eyes and prolonged skin exposure and calls for safety glasses when undiluted products are handled. These historical precautions are sensible background information, but they are not a substitute for updated labeling, occupational risk assessment or emergency procedures.

For transport, confirm whether the supplied material is regulated under the applicable road, maritime or air code and use the proper shipping description from its current SDS. Do not invent a UN number or claim “not dangerous goods” without a verified current grade-specific classification.

FREQUENTLY ASKED QUESTIONS ABOUT PLURONIC PE 6400

What is Pluronic PE 6400?
It is a liquid nonionic EO–PO–EO triblock-copolymer surfactant used chiefly in low-foaming industrial detergent and related processing applications.

What is the CAS number of Pluronic PE 6400?
CAS 9003-11-6 is associated with the broad EO/PO polymer category, but it does not uniquely specify this grade.

Is Pluronic PE 6400 a single pure molecule?
No. It is a polymeric grade containing a distribution of chain lengths and is identified by average composition and performance parameters.

What is Pluronic PE 6400's nominal average molecular weight?
Approximately 2,900 g/mol, as reported in manufacturer technical literature; this is a mean value rather than an exact molecular mass.

How much ethylene-oxide-derived material does Pluronic PE 6400 contain?
Approximately 40% by mass of the polymer is attributed to polyethylene-oxide segments.

What is the main molecular architecture of Pluronic PE 6400?
A PPO-rich middle block flanked by PEO-rich end blocks, usually represented as PEO–PPO–PEO.

What does nonionic mean for Pluronic PE 6400?
The surfactant does not require a permanent ionic charge to function; nevertheless, dissolved salts can still alter its phase behavior and compatibility.

Is Pluronic PE 6400 supplied as a liquid or powder?
It is supplied as a liquid; historical documentation describes it as colorless and slightly cloudy.

Is Pluronic PE 6400 100% active?
Older manufacturer material describes approximately 100% concentration, but that is not a guarantee of absolutely zero water or trace impurities.

What is Pluronic PE 6400's density?
Approximately 1.05 g/cm³ at 23 °C under the stated DIN method in historical manufacturer data.

What is Pluronic PE 6400's dynamic viscosity?
Approximately 1,000 mPa·s at 23 °C, measured by Brookfield at 60 rpm according to the cited historical method.

Is 1,000 mPa·s a kinematic viscosity?
No. It is dynamic viscosity in mPa·s and must not be relabeled as mm²/s without a justified density-based conversion under matched conditions.

What is the cloud point of Pluronic PE 6400?
About 60 °C by EN 1890 Method A in the specified distilled-water mixture; other media yield different results.

Why is the cloud-point method important?
Because changing concentration, electrolyte or solvent can change the result, a reported number without method and medium may be misleading.

What is the setting point of Pluronic PE 6400?
A historical manufacturer bulletin reports approximately 16 °C by DIN 51583, distinct from a precise melting point.

Does Pluronic PE 6400 have a single melting point?
Not in the sense of a small, pure molecule; its measured setting behavior and polymer distribution are more useful than an invented sharp melting point.

What is Pluronic PE 6400's approximate surface tension?
Around 41 mN/m for a 1 g/L sample at 23 °C under the historic DIN method.

Is Pluronic PE 6400 a fast wetting surfactant?
Not according to the historical EN 1772 result, which exceeded 300 seconds under that test's conditions.

Is Pluronic PE 6400 water soluble?
The manufacturer’s historical 10% screening test reports it soluble in distilled water at 23 °C, but viscosity and clarity can vary strongly with concentration and temperature.

Is Pluronic PE 6400 soluble in concentrated caustic solution?
The historical test reports it insoluble in the specified 10% caustic soda medium, so concentrated alkaline formulations require compatibility testing.

Can Pluronic PE 6400 be used in alkaline detergents despite that result?
It can be evaluated in formulated cleaning systems, but the specific concentrate must be checked for phase stability rather than assumed compatible.

Is Pluronic PE 6400 soluble in ethanol?
Yes, ethanol was a positive solvent in a defined historical 10% solubility screen at 23 °C.

Is it soluble in isopropanol?
Yes, a positive result was reported in the manufacturer’s historical solvent screening.

Does it mix with every hydrocarbon solvent?
No. The old test lists white mineral spirits as unsuitable and an opalescent result in toluene; solvent compatibility is not universal.

Why is the solution sometimes cloudy when heated?
Warming changes the hydration of EO-containing blocks, and an aqueous formulation may reach a cloud point or phase boundary.

Does clouding necessarily mean degradation?
No. It can be a physical phase phenomenon, but unusual appearance still warrants a quality check and review of current storage instructions.

Why can dilution make Pluronic PE 6400 thicker?
Partially diluted EO–PO–EO polymers can form associative structures, causing a substantial intermediate rise in viscosity.

How viscous can partly diluted mixtures become?
Historical data report more than 100,000 mPa·s for some intermediate water contents at 25 °C; equipment should be designed around the whole mixing process.

What does 20% water mean in a viscosity table?
It means a mixture containing 20% water and approximately 80% surfactant, not a 20%-active surfactant solution.

Is the final dilute solution always viscous?
No. The historical dataset shows viscosities falling sharply as the water fraction becomes high.

How should an aqueous blend be evaluated?
Assess the dilution path, mixing torque, temperature, storage stability, foam and cleaning performance instead of measuring only the final viscosity.

What is the main industrial use of Pluronic PE 6400?
Industrial detergency in low-foam systems, especially mechanical cleaning such as dishwashing and bottle-washing.

Why is Pluronic PE 6400 used in automatic dishwashing?
It can provide useful cleaning in highly agitated systems while limiting foam compared with strongly foaming surfactant options.

Can Pluronic PE 6400 be used in bottle-washing machines?
Yes, bottle washing is specifically identified in older grade-specific technical information, subject to formulation and process validation.

Is Pluronic PE 6400 applicable to dairy cleaning?
Yes, published manufacturer material includes dairy cleaning, but the complete detergent must meet the facility's requirements.

Does use in food-facility cleaning make it a food additive?
No. Equipment-cleaning applications do not confer permission for deliberate addition to food.

What kinds of soil can Pluronic PE 6400 help manage?
It can contribute to removal and dispersion of certain organic and particulate soils when combined with the appropriate cleaning chemistry and mechanical action.

Does Pluronic PE 6400 chemically disinfect surfaces?
No antimicrobial disinfection claim is established for this grade; a sanitation claim requires separately verified active chemistry and approvals.

Can Pluronic PE 6400 help with calcium and magnesium deposits?
Manufacturer literature describes a strong capacity to disperse sparingly soluble calcium and magnesium salts, but this should not be represented as universal descaling.

Is Pluronic PE 6400 a chelating agent?
Not in the same sense as dedicated chelants; its primary described role is surfactant and dispersion performance.

Does it soften all types of hard water by itself?
No. A water-conditioning system may also require builders or dedicated chelants, depending on ion levels and deposits.

Is Pluronic PE 6400 low foaming?
Yes, the producer describes it as a low-foaming nonionic surfactant.

Is Pluronic PE 6400 the strongest foam suppressor in its family?
No. Historic manufacturer documentation highlights certain lower-EO variants as more effective standalone antifoams.

Can Pluronic PE 6400 destroy foam formed by another surfactant?
It may influence blend foam, but universal antifoam performance cannot be promised without tests under the actual operating conditions.

Why test foam in actual equipment?
Shear, temperature, contaminants, spray conditions and other surfactants can change practical foam far more than a single static laboratory test predicts.

Can Pluronic PE 6400 be used in CIP formulations?
It is a candidate surfactant for appropriately engineered recirculating cleaning systems, but plant-specific compatibility and cleaning tests are required.

Can Pluronic PE 6400 be used in metalworking fluids?
Historical grade-specific literature identifies cutting and grinding fluids as an application area where lubrication and cooling performance may be relevant.

Does Pluronic PE 6400 replace corrosion inhibitors in cutting fluids?
No. Corrosion control, microbial management and lubricant performance need separate formulation design and verification.

Can Pluronic PE 6400 emulsify monomers?
Yes, its use as an emulsifier in polymerization processes is identified in older technical sources, with process-dependent suitability.

Is it suitable for every polymerization recipe?
No. Monomer identity, electrolyte content, reaction conditions and desired polymer properties determine suitability.

Can Pluronic PE 6400 be blended with anionic surfactants?
Nonionic EO–PO–EO chemistry is generally compatible with many anionic surfactants, but final blend stability and foaming still require testing.

Can it be combined with cationic ingredients?
Its nonionic architecture avoids a simple ionic incompatibility, although actual formulations may still phase-separate or change viscosity.

Does calcium hardness automatically inactivate it?
No. It lacks the same counterion sensitivity as ionic surfactants, though hardness can still influence the overall detergent system.

Does a higher EO fraction always mean better detergency?
No. EO content changes water compatibility and foam, but total molecular structure and cleaning conditions determine results.

How does PE 6400 differ from PE 6100?
PE 6400 contains about 40% EO rather than the approximately 10% EO described for PE 6100, giving a different water-solubility and performance profile.

How does PE 6400 differ from PE 6200?
PE 6200 has about 20% EO and lower nominal molecular mass; older information emphasizes its low-foaming wetting performance more strongly.

How does PE 6400 differ from PE 6800?
PE 6800 has a much larger hydrophilic fraction and is a powder in the historical product range, not the same liquid grade.

Can an alcohol alkoxylate replace Pluronic PE 6400 directly?
Not without trials. A different surfactant can change cleaning, foam, clouding, dispersion and viscosity even at the same nominal concentration.

Is Poloxamer 184 the same chemical type?
Poloxamer 184 is a closely related EO–PO–EO composition associated with L64-like material, but a shared nominal structure does not establish identical industrial grade qualifications.

Is Pluronic PE 6400 pharmaceutical grade?
No such grade certification is established in the sources for this commercial industrial product.

Is it cosmetic grade?
No grade-specific cosmetic compliance or finished-formulation authorization is established merely from the chemical family or polymer CAS number.

Does it have an E-number?
No applicable E-number or INS designation is established for this industrial grade.

Does it have one fixed molecular formula?
No. Polymer composition and chain lengths are distributed, so a structural repeat-unit representation is more accurate.

What is the EC number of Pluronic PE 6400?
No unique grade-specific EC number is asserted here; the applicable regulatory inventory documentation should be checked for the exact supplied polymer.

What is its flash point?
A reliable current grade-specific flash point has not been established in this profile; consult the supplier's regional SDS.

What is the UN number for transporting Pluronic PE 6400?
No current grade-specific UN transport number is asserted without a verified applicable SDS.

Is the product automatically nonhazardous because it is nonionic?
No. Workplace hazards and classification must be determined from the current SDS and the way the material is handled.

What should be done after eye exposure?
Rinse cautiously with running water and seek medical advice if pain, irritation or visual symptoms persist, following the current SDS.

What should be done after skin exposure?
Wash with water and soap, remove contaminated clothing, and obtain medical guidance for persistent irritation.

What should be done after swallowing Pluronic PE 6400?
Rinse the mouth and seek medical or poison-service advice as appropriate; do not induce vomiting unless professionally directed.

What is an important storage condition?
Keep the product tightly sealed and dry while avoiding prolonged unusual temperature exposure, using the current supplier storage instructions.

Can the product become thicker in the cold?
Yes. Older documentation describes low-temperature cloudiness, precipitation or thickening for this product family.

Should workers heat containers in any convenient way?
No. Any controlled reconditioning must follow the current approved procedure and avoid localized overheating.

What shelf life should purchasers assume?
An older series bulletin describes at least two years under its specified storage conditions, but the current supplier's guarantee must be verified.

What does a TDS provide?
Typical technical data and performance descriptions under stated test conditions; these are not necessarily contractual lot specifications.

What does an SDS provide?
Region-specific safety, hazard, first-aid, handling and transport information for the supplied material.

What is a COA used for?
A certificate of analysis documents specified batch test results and is used for lot verification and traceability.

Which numeric property requires particular care during formulation?
The dramatic non-linear viscosity rise in intermediate water-containing blends.

Can laboratory results be scaled directly into plant operating conditions?
No. Mixing energy, heat transfer, contamination, water hardness and residence time may change performance during scale-up.

What quality checks are important at receipt?
Verify the grade name, lot code, seals, appearance, documentation and any contractual identity or viscosity tests.

Can Pluronic PE 6400 be considered environmentally certified by default?
No. Product-level information for sustainability assessments does not automatically establish an environmental label for every finished formulation.

Can Ataman Kimya confirm the suitable version and documentation?
Customers may contact Ataman Kimya to discuss the intended application, relevant product documentation and whether an appropriate grade or quotation is available.

TECHNICAL SUMMARY

Pluronic PE 6400 is a liquid, nonionic EO–PO–EO block-copolymer surfactant characterized by approximately 40% ethylene-oxide-derived content and a nominal average molar mass near 2,900 g/mol. Representative manufacturer values include approximately 1,000 mPa·s dynamic viscosity and 1.05 g/cm³ density at 23 °C, with a cloud point near 60 °C by EN 1890 Method A. The polymer is associated with low-foam mechanical cleaning, detergency, hard-water salt dispersion, dairy and bottle cleaning, selected metalworking fluids and industrial emulsification.

The most consequential process constraint is not simply the viscosity of the received liquid but the possibility of very high viscosity during intermediate water dilution. Cloud point and solubility also depend on the test medium, temperature and overall formulation. Technical design, regulatory review, grade substitution and safety measures should be based on current supply documentation and realistic application trials rather than generic CAS data or historical performance statements alone.

CONTACT ATAMAN KIMYA

For information about Pluronic PE 6400, customers may contact Ataman Kimya to discuss intended cleaning or industrial-processing applications, appropriate grade selection, technical specifications and formulation compatibility. Ataman Kimya can be asked about available technical data sheets, safety data sheets, batch documentation, packaging options, current supply possibilities and quotation arrangements; none of these statements implies that a specific item is in stock or certified for a regulated use.

When requesting technical support or a quotation, it is helpful to describe the process temperature, water hardness, detergency target, equipment type and desired foam profile. This context can guide discussion of suitability and any further testing required before commercial adoption.

Ataman Chemicals
Phone: +90 216 577 10 10
Email: info@atamankimya.com