PLURONIC PE 6400

PLURONIC PE 6400 offers effective wetting and cleaning performance while helping maintain controlled foam levels in industrial and institutional formulations.
PLURONIC PE 6400 combines detergency, dispersion, and emulsification properties, making it suitable for a wide range of aqueous cleaning and process systems.
PLURONIC PE 6400 provides reliable nonionic surface activity and good formulation compatibility, supporting consistent performance under varied operating conditions.

CAS Number: 9003-11-6
Molecular Formula: (C2H4O)x(C3H6O)y
Molecular Weight: Approx. 2,900 g/mol

Synonyms: PLURONIC PE 6400, Ethylene Oxide–Propylene Oxide Block Copolymer, EO–PO Block Copolymer, EO/PO Copolymer, Polyoxyethylene–Polyoxypropylene Block Copolymer, PEO–PPO Block Copolymer, Polyethylene Oxide–Polypropylene Oxide Copolymer, Polyether Block Copolymer, Nonionic Polyether Surfactant, Nonionic EO/PO Surfactant, Low-Foaming Polyether Surfactant, Industrial Nonionic Surfactant, Propylene Oxide–Ethylene Oxide Copolymer, EO/PO Polyether Surfactant, Poloxamer-Type Block Copolymer

PLURONIC PE 6400 is a low-foaming, nonionic surfactant in the form of a block copolymer, with a central polypropylene glycol group flanked by two polyethylene glycol groups.
PLURONIC PE 6400 appears as a colorless, slightly cloudy liquid and is suitable for a wide range of applications.

PLURONIC PE 6400 offers very high dispersing capacity for sparingly soluble calcium and magnesium salts and is also used in cutting and grinding fluids for metals, where it functions as a lubricant and coolant.
Additionally, PLURONIC PE 6400 serves as an emulsifier in polymerization processes.

PLURONIC PE 6400 is a low-foaming nonionic surfactant based on a propylene oxide–ethylene oxide (PO–EO) block copolymer.
PLURONIC PE 6400 is supplied as a liquid and contains approximately 40% polyethylene glycol-type EO content in the molecule.

PLURONIC PE 6400 is designed for strong detergency, wetting, dispersion, and foam-controlled cleaning performance, particularly in industrial and institutional applications.
Typical characteristics include an average molar mass of about 2,900 g/mol, viscosity around 1,000 mPa·s at 23 °C, and a cloud point near 60 °C.

Applications of PLURONIC PE 6400:
PLURONIC PE 6400 is used as a nonionic surfactant in industrial and institutional cleaning formulations where effective detergency, wetting, and controlled foaming are required.
PLURONIC PE 6400 is suitable for hard-surface cleaners, equipment-cleaning products, process-cleaning systems, and formulations designed to remove oils, grease, and other residues from industrial surfaces.

PLURONIC PE 6400 can also support dispersion and emulsification of hydrophobic materials, helping improve cleaning efficiency and formulation stability.
PLURONIC PE 6400's balanced EO/PO structure makes it useful in aqueous detergent systems, metal-cleaning formulations, technical cleaners, and other applications where reliable surface activity and moderate foam control are important.

Chemical Nature of PLURONIC PE 6400:
The PLURONIC PE types are low-foaming, nonionic surfactants.
They are block copolymers in which the central polypropylene glycol group is flanked by two polyethylene glycol groups

Nomenclature of PLURONIC PE 6400:
The PLURONIC PE types are designated by a four-figure or five-figure code.
The first digit – or first two digits – is a guide to the molar mass of the hydrophobe, in this case polypropylene glycol, on a scale of 1 – 10.
The second or third digit is the percentage of polyethylene glycol in the molecule, multiplied by 10.

Properties of PLURONIC PE 6400:
The consistency of the individual products in the PLURONIC PE range is determined by their polyethylene glycol content and the molar mass of the central polypropylene glycol block.
They tend to become more solid as these figures increase.
PLURONIC PE 6800 is supplied in the form of fine, free-flowing, non-tacky beads for ease of processing.

Solubility of PLURONIC PE 6400:
PLURONIC PE 6400 is a general rule that the solubility of PLURONIC PE types in water increases in step with the proportion of polyethylene glycol that they contain.
If two products containthe same mass fraction of polyethylene glycol, the molar mass of the polypropylene glycol block is the determining factor, and the one with the lower molar mass will be the more soluble.

For instance, PLURONIC PE 6800 is more soluble in water than PLURONIC PE 6400, which is less soluble than PLURONIC PE 3100.
All of the PLURONIC PE types are more soluble in cold water than in hot water.

As in all alkoxylates, the oxygen atoms in the ether groups form hydrogen bonds with water.
The molecules gradually dissociate as the solution warms up.

PLURONIC PE 6400 is for this reason that alkoxylates have a cloud point at which they form a separate phase.
Each product in the PLURONIC PE range has its own characteristic cloud point.

Wetting of PLURONIC PE 6400:
The most effective wetting agents contain a low proportion of polyethylene glycol, and their central polypropylene glycol block has a high molar mass.
The best wetting agents in the range are PLURONIC PE 8100, PE 9200 and PE 10100. 

Compatibility of PLURONIC PE 6400:
The PLURONIC PE types are nonionic and therefore miscible with anionic, cationic and other nonionic surfactants.
They do not react with cations such as Ca2+ or Mg2+, which means that they can be used in hard water.

They are also compatible with soluble polyanionic substances such as our Sokalan® CP types, Sokalan® PA types and carboxymethyl cellulose.
The PLURONIC PE types are fully resistant to non-oxidizing acids at the concentrations at which they are normally employed in applications such as those described below but, although they are resistant to alkalis, they are not resistant to alkalis to quite the same extent.

Processing of PLURONIC PE 6400:
PLURONIC PE 6400 is advisable to stir the surfactant into water when preparing aqueous solutions, because solutions made up in the reverse order can have a very high viscosity.
Products with a high molar mass also form gels in water at certain concentrations. 

Stability and Reactivity of PLURONIC PE 6400:

Chemical Stability:
Stable under normal conditions.

Conditions to Avoid:
Excessive heat.

Incompatible Materials:
Strong oxidizing agents.

Handling and Storage of PLURONIC PE 6400:

Handling:
Avoid eye and prolonged skin contact.

Storage:
Keep tightly closed in a cool, dry, well-ventilated area.

First Aid Measures of PLURONIC PE 6400:

Inhalation:
Move to fresh air.

Skin Contact:
Wash with soap and water.

Eye Contact:
Rinse thoroughly with water.

Ingestion:
Rinse mouth and seek medical advice if symptoms occur.

Firefighting Measures of PLURONIC PE 6400:

Extinguishing Media:
Use water spray, foam, dry chemical, or CO₂.

Fire Hazards:
Combustion may produce carbon oxides.

Accidental Release Measures of PLURONIC PE 6400:

Personal Precautions:
Avoid contact with spilled material.

Cleanup:
Absorb with inert material and collect for disposal.

Environmental Precautions:
Prevent large spills from entering drains.

Exposure Controls/Personal Protection of PLURONIC PE 6400:

Eye Protection:
Wear safety glasses.

Hand Protection:
Use protective gloves.

Respiratory Protection:
Normally not required with adequate ventilation.

General Protection:
Maintain good workplace ventilation.

Identifiers of PLURONIC PE 6400:
Product Name: PLURONIC PE 6400
Chemical Family: Polyether Block Copolymer
CAS Number: 9003-11-6
Molecular Formula: (C2H4O)x(C3H6O)y
Average Molecular Weight: Approximately 2,900 g/mol
Polymer Type: EO–PO Block Copolymer

Chemical/Common Name: PO-EO-block polymer
Product Number: 467559

Product Number (PRD): 30044133
Product CAS Details: 9003-11-6

Properties of PLURONIC PE 6400:
Appearance: Clear to slightly hazy liquid.
Physical State: Liquid.
Chemical Type: EO/PO block copolymer.
Surfactant Type: Nonionic.
Molecular Weight: Approx. 2,900 g/mol.
Solubility: Soluble or dispersible in water.
Odor: Mild characteristic odor.
Viscosity: Moderate to high.
Cloud Point: Approximately 60 °C.