DISPONIL FES 27 IS

Disponil FES 27 IS is an aqueous anionic surfactant based on C12–C14 fatty alcohol ether sulfate sodium salt.
Disponil FES 27 IS contains approximately 27% active surfactant with an average ethoxylation level of about two ethylene oxide units.
Disponil FES 27 IS provides emulsification, latex stabilization, wetting, foaming, detergency, and interfacial-tension reduction.

CAS Number: 68891-38-3 for the representative active surfactant; the complete aqueous grade is a formulated mixture
EC Number: 500-234-8 for the representative active surfactant
Molecular Formula: Variable; commonly represented as RO(CH₂CH₂O)nSO₃Na, where R is predominantly C12–C14 and n is approximately 2
Molecular Weight: Variable according to alkyl-chain length and ethoxylation distribution

SYNONYMS

Disponil FES 27 IS, Disponil FES 27IS, Disponil FES-27 IS, Disponil FES-27IS, Disponil FES 27, FES 27 IS, FES-27 IS, FES27 IS, FES 27, Fatty Alcohol Ether Sulfate, Fatty Alcohol Ether Sulphate, Fatty Alcohol Ethersulfate, Fatty Alcohol Ethersulphate, Sodium Fatty Alcohol Ether Sulfate, Sodium Fatty Alcohol Ether Sulphate, C12–C14 Fatty Alcohol Ether Sulfate, C12–C14 Fatty Alcohol Ether Sulphate, C12–C14 Fatty Alcohol Ether Sulfate Sodium Salt, C12–C14 Fatty Alcohol Ether Sulphate Sodium Salt, Alcohols C12–14 Ethoxylated Sulfates Sodium Salts, Alcohols C12–14 Ethoxylated Sulphates Sodium Salts, Sodium C12–C14 Alkyl Ether Sulfate, Sodium C12–C14 Alkyl Ether Sulphate, Sodium Alkyl Ether Sulfate, Sodium Alkyl Ether Sulphate, Alkyl Ether Sulfate Sodium Salt, Alkyl Ether Sulphate Sodium Salt, Sodium Laureth Sulfate, Sodium Laureth Sulphate, Sodium Lauryl Ether Sulfate, Sodium Lauryl Ether Sulphate, SLES, SLES 2 EO, SLES 2, AES 2 EO, Sodium Polyoxyethylene Alkyl Ether Sulfate, Sodium Polyoxyethylene Alkyl Ether Sulphate, Sodium Lauryl Polyethoxysulfate, Sodium Lauryl Polyethoxysulphate, C12–C14 Alcohol Ethoxysulfate, C12–C14 Alcohol Ethoxysulphate, Two-EO Fatty Alcohol Ether Sulfate, Anionic Polymerization Emulsifier, Emulsion-Polymerization Surfactant, Latex Emulsifier, Latex-Stabilizing Surfactant, Acrylic-Latex Emulsifier, Styrene-Acrylic Emulsifier, Vinyl-Acetate Emulsifier, Styrene-Butadiene Latex Emulsifier, Aqueous Anionic Surfactant, CAS 68891-38-3, EC 500-234-8

APPLICATIONS

Disponil FES 27 IS serves as a primary anionic emulsifier in acrylic emulsion polymerization.
Disponil FES 27 IS helps disperse acrylic monomers in water and stabilize polymer particles as conversion proceeds.

Disponil FES 27 IS supports all-acrylic latexes based on combinations of butyl acrylate, methyl methacrylate, ethyl acrylate, and compatible functional monomers.
Disponil FES 27 IS can help control particle nucleation, coagulum formation, particle size, and finished-latex stability.

Disponil FES 27 IS functions in styrene-acrylic polymer dispersions used as binders for coatings, adhesives, and construction materials.
Disponil FES 27 IS maintains anionic surface charge around developing polymer particles when dosage and electrolyte conditions are properly controlled.

Disponil FES 27 IS contributes to vinyl-acetate homopolymer and copolymer emulsion development.
Disponil FES 27 IS can be evaluated with vinyl acetate, acrylic comonomers, ethylene-containing systems, and functional carboxylic monomers.

Disponil FES 27 IS supports polyvinyl-acetate dispersions intended for paper, woodworking, packaging, and general-purpose adhesive systems.
Disponil FES 27 IS has been evaluated experimentally as a surfactant in vinyl-acetate emulsion polymerization.

Disponil FES 27 IS functions in styrene-butadiene latex polymerization for paper, carpet, construction, and technical binder applications.
Disponil FES 27 IS can be combined with complementary emulsifiers to balance particle stability, foam, mechanical stability, and film properties.

Disponil FES 27 IS contributes to monomer pre-emulsions prepared before controlled feeding into a polymerization reactor.
Disponil FES 27 IS reduces separation between the water phase and hydrophobic monomer phase during mixing, pumping, and metered addition.

Disponil FES 27 IS supports seeded emulsion-polymerization processes requiring controlled formation and growth of latex particles.
Disponil FES 27 IS can be divided between the initial reactor charge and monomer feed to modify nucleation behavior.

Disponil FES 27 IS functions in semicontinuous polymerization processes using persulfate or compatible redox initiator systems.
Disponil FES 27 IS must be evaluated with initiators, reducing agents, buffers, chain-transfer agents, and temperature conditions.

Disponil FES 27 IS contributes to high-solids polymer dispersions requiring efficient stabilization at relatively low surfactant concentration.
Disponil FES 27 IS dosage must be optimized because excessive surfactant can increase foam, water sensitivity, and surfactant migration.

Disponil FES 27 IS supports acrylic dispersions containing hydroxy-functional, carboxyl-functional, or crosslinkable comonomers.
Disponil FES 27 IS compatibility should be verified because ionic monomers and pH adjustments can change colloidal stability.

Disponil FES 27 IS functions in oxazoline-functional aqueous polymer dispersions intended for reactive coating or adhesive systems.
Disponil FES 27 IS has been used as sodium lauryl polyethoxysulfate in documented styrene-acrylate and acrylate polymerization procedures.

Disponil FES 27 IS contributes to pressure-sensitive adhesive dispersions based on soft acrylic polymers.
Disponil FES 27 IS can influence particle size, coating uniformity, peel adhesion, tack, cohesion, and water resistance.

Disponil FES 27 IS supports removable pressure-sensitive adhesives requiring stable aqueous polymer dispersions.
Disponil FES 27 IS can be combined with other anionic surfactants to tailor multimodal particle-size distributions.

Disponil FES 27 IS functions in synthetic adhesives used for paperboard, corrugated-board, and packaging assembly.
Disponil FES 27 IS helps stabilize styrene-butadiene or acrylic dispersions while the polymer composition determines bond performance.

Disponil FES 27 IS contributes to architectural-paint latexes requiring stable polymer particles and controlled pigment compatibility.
Disponil FES 27 IS must be balanced with dispersants, rheology modifiers, coalescents, defoamers, and preservatives.

Disponil FES 27 IS supports industrial waterborne coatings applied to metal, wood, mineral, paper, and polymer substrates.
Disponil FES 27 IS can improve latex stability while final adhesion, gloss, water resistance, and corrosion performance remain resin dependent.

Disponil FES 27 IS functions in textile-binder dispersions used for pigment printing, nonwoven bonding, and fabric finishing.
Disponil FES 27 IS helps maintain latex uniformity during storage, padding, coating, drying, and thermal curing.

Disponil FES 27 IS contributes to nonwoven binders requiring controlled fiber wetting and polymer distribution.
Disponil FES 27 IS suitability depends on softness, tensile strength, absorbency, extractables, foam, and end-use requirements.

Disponil FES 27 IS supports paper-coating latexes used to bind pigments and mineral fillers to paper or board.
Disponil FES 27 IS should be evaluated for printability, wet pick resistance, dry strength, gloss, and water sensitivity.

Disponil FES 27 IS functions in construction polymer dispersions used for cement modification, mortars, primers, and surface treatments.
Disponil FES 27 IS requires testing in alkaline and calcium-rich systems because cementitious electrolytes can affect latex stability.

Disponil FES 27 IS contributes to polymer-modified waterproofing membranes and flexible cementitious coating binders.
Disponil FES 27 IS supports dispersion manufacture while the polymer, filler, cement, and additive package determine field performance.

Disponil FES 27 IS supports aqueous pigment and filler dispersions requiring rapid wetting of hydrophobic particle surfaces.
Disponil FES 27 IS can reduce interfacial resistance and improve incorporation of compatible organic or inorganic solids.

Disponil FES 27 IS functions in industrial cleaning formulations requiring strong wetting, foaming, emulsification, and detergency.
Disponil FES 27 IS can be combined with nonionic or amphoteric surfactants to modify cleaning power, foam structure, and formulation mildness.

Disponil FES 27 IS serves in laboratory and production optimization of anionic emulsion-polymerization systems.
Disponil FES 27 IS can be evaluated through surface tension, pre-emulsion stability, conversion, coagulum, particle size, viscosity, electrolyte stability, foam, and film testing.

DESCRIPTION

Disponil FES 27 IS is an aqueous fatty alcohol ether sulfate surfactant concentrate.
Disponil FES 27 IS is listed as a liquid sodium salt containing approximately two ethylene oxide units and approximately 27% active matter.

Disponil FES 27 IS belongs to the anionic alkyl ether sulfate family.
Disponil FES 27 IS develops a negative charge in water through its sulfate ester sodium-salt group.

Disponil FES 27 IS active substance is broadly identified as alcohols, C12–14, ethoxylated, sulfates, sodium salts.
Disponil FES 27 IS representative active substance is associated with CAS Number 68891-38-3 and EC Number 500-234-8.

Disponil FES 27 IS is a UVCB or compositionally distributed surfactant rather than one discrete molecular compound.
Disponil FES 27 IS contains distributions of C12 and C14 alkyl chains together with different ethoxylation homologues.

Disponil FES 27 IS therefore has no single exact molecular formula or molecular weight.
Disponil FES 27 IS can be represented generally as RO(CH₂CH₂O)nSO₃Na with n averaging approximately two.

Disponil FES 27 IS combines a hydrophobic fatty alkyl group with a hydrophilic ethoxylated sulfate head region.
Disponil FES 27 IS amphiphilic structure drives adsorption at monomer-water, polymer-water, oil-water, solid-water, and air-water interfaces.

Disponil FES 27 IS lowers interfacial tension between hydrophobic monomers and the continuous aqueous phase.
Disponil FES 27 IS facilitates formation of small monomer droplets during pre-emulsification and reactor feeding.

Disponil FES 27 IS adsorbs onto growing polymer particles during emulsion polymerization.
Disponil FES 27 IS provides electrostatic and hydrated interfacial stabilization that reduces uncontrolled particle aggregation.

Disponil FES 27 IS comparatively low ethoxylation provides strong interfacial activity and rapid adsorption.
Disponil FES 27 IS is particularly associated with finely dispersed and stable all-acrylic and related polymer systems.

Disponil FES 27 IS can be used alone as a primary emulsifier or combined with another anionic or nonionic surfactant.
Disponil FES 27 IS mixed-emulsifier performance depends on surfactant ratio, monomer polarity, temperature, initiator chemistry, and electrolyte content.

Disponil FES 27 IS is normally supplied as a clear, colorless to slightly yellow aqueous liquid.
Disponil FES 27 IS exact color, viscosity, density, salt content, and pH must be confirmed from the current grade specification.

Disponil FES 27 IS has a typical active-matter concentration near 27%.
Disponil FES 27 IS is commonly reported with a pH range near 6.4–7.5 under the specified analytical conditions.

Disponil FES 27 IS is soluble and readily dilutable in demineralized water.
Disponil FES 27 IS dilution should be performed with gentle agitation because rapid mixing and air entrainment can generate substantial foam.

Disponil FES 27 IS alkyl ether sulfate chemistry is relatively hydrolytically stable under many normal formulation conditions.
Disponil FES 27 IS can nevertheless undergo accelerated hydrolysis during prolonged exposure to strongly acidic conditions and elevated temperature.

Disponil FES 27 IS technical guidance for the broader ether-sulfate range recommends storage between approximately 20°C and 40°C.
Disponil FES 27 IS exposed below its pour point can become cloudy, viscous, structured, or partially solid without necessarily undergoing irreversible chemical damage.

Disponil FES 27 IS production generally involves ethoxylation of a C12–C14 fatty alcohol, sulfation of the ethoxylate, neutralization with sodium base, and aqueous concentration adjustment.
Disponil FES 27 IS quality control can include active matter, unsulfated material, sodium sulfate, sodium chloride, pH, color, water, and viscosity.

Disponil FES 27 IS organic components are identified in current product-range information as readily biodegradable under the referenced OECD 301 framework.
Disponil FES 27 IS environmental performance in a finished formulation remains dependent on concentration, other ingredients, discharge conditions, and wastewater treatment.

Disponil FES 27 IS concentrated active chemistry is commonly classified as irritating to skin and capable of causing serious eye damage.
Disponil FES 27 IS active substance is also reported as harmful to aquatic life with long-lasting effects, although the classification of the 27% aqueous grade must be taken from its current regional Safety Data Sheet.

PROPERTIES

Product Type: Aqueous Anionic Surfactant Concentrate

Chemical Class: C12–C14 Fatty Alcohol Ether Sulfate Sodium Salt

Representative CAS Number: 68891-38-3

Representative EC Number: 500-234-8

General Formula: RO(CH₂CH₂O)nSO₃Na

Ethoxylation Level: Approximately 2 EO

Active Matter: Approximately 27%

Physical Form: Liquid

Appearance: Clear, Colorless to Slightly Yellow

Ionic Character: Anionic

Typical pH: Approximately 6.4–7.5, Method and Grade Dependent

Water Compatibility: Soluble and Readily Dilutable

Primary Functions: Emulsification, Latex Stabilization, Wetting, Foaming, and Detergency

Main Uses: Emulsion Polymerization, Polymer Dispersions, Coatings, Adhesives, Textiles, Paper, and Industrial Cleaning

Storage: Commonly 20–40°C, Tightly Closed, and Protected from Freezing, Heat, Evaporation, and Contamination

FIRST AID

Inhalation

Disponil FES 27 IS mist or aerosol exposure requires movement to fresh air and rest in a position comfortable for breathing.
Disponil FES 27 IS inhalation requires medical attention if coughing, throat irritation, wheezing, or breathing difficulty persists.

Skin Contact

Disponil FES 27 IS skin contamination requires removal of affected clothing and thorough washing with soap and plenty of water.
Disponil FES 27 IS skin exposure requires medical advice if redness, pain, dryness, irritation, or another adverse response continues.

Eye Contact

Disponil FES 27 IS eye exposure requires immediate continuous rinsing with clean water for at least 15 minutes while the eyelids are held open.
Disponil FES 27 IS eye exposure requires contact-lens removal when easy and prompt medical attention because serious eye injury can occur.

Ingestion

Disponil FES 27 IS accidental ingestion requires rinsing of the mouth without inducing vomiting unless directed by medical personnel.
Disponil FES 27 IS ingestion requires medical advice when a substantial amount is swallowed or nausea, vomiting, abdominal discomfort, or aspiration symptoms develop.

Note to Physicians

Disponil FES 27 IS exposure should be treated symptomatically with appropriate supportive care.
Disponil FES 27 IS assessment should consider active concentration, accompanying salts, quantity, exposure route, symptoms, and the current regional Safety Data Sheet.

HANDLING AND STORAGE

Handling

Disponil FES 27 IS should be handled through closed transfer and metering systems wherever practical.
Disponil FES 27 IS contact with the eyes, prolonged skin contact, aerosol formation, contamination, and uncontrolled foam generation should be prevented.

Ventilation

Disponil FES 27 IS transfer, mixing, polymerization, spraying, and heated-processing areas should have effective general ventilation and local exhaust where required.
Disponil FES 27 IS respiratory protection should be used when engineering controls cannot adequately limit mist or aerosol exposure.

Storage

Disponil FES 27 IS should be stored in tightly closed and chemically compatible containers within a clean and well-ventilated area.
Disponil FES 27 IS should be protected from freezing, prolonged temperatures outside the recommended range, evaporation, direct heat, contamination, and damaged packaging.

Spill and Leak Procedures

Disponil FES 27 IS spills should be contained with a compatible inert absorbent because the liquid can create a severe slipping hazard and extensive foam.
Disponil FES 27 IS should be prevented from entering drains, soil, groundwater, or surface water in uncontrolled quantities.

Handling Precautions

Disponil FES 27 IS handling should include chemical-resistant gloves, protective clothing, and tightly fitting safety goggles.
Disponil FES 27 IS processing should follow the current grade-specific Technical Data Sheet, Safety Data Sheet, storage limits, environmental controls, and foam-management procedures.