PHOSFLEX T-BEP

Phosflex T-BEP is a phosphate ester plasticizer and specialty solvent identified as tris(2-butoxyethyl) phosphate, and Phosflex T-BEP is valued for plasticizing efficiency, low volatility, resin compatibility, solvency, and flame-retardant contribution.
Phosflex T-BEP is commonly used in PVC, vinyl resins, floor-care formulations, coatings, inks, adhesives, sealants, textile auxiliaries, and specialty industrial systems where phosphate ester functionality supports flexibility, film formation, and processing performance.
Phosflex T-BEP is typically supplied as a clear colorless to pale yellow liquid, and Phosflex T-BEP performance depends on purity, acidity, water content, phosphorus content, viscosity, resin compatibility, plasticizer loading, processing temperature, and final application requirements.

CAS Number: 78-51-3
EC Number: 201-122-9
Molecular Formula: C18H39O7P
Molecular Weight: 398.47 g/mol

Synonyms: Phosflex T-BEP, PHOSFLEX T-BEP, Phosflex TBEP, TBEP, Tributoxyethyl Phosphate, Tris(2-Butoxyethyl) Phosphate, Tri(2-Butoxyethyl) Phosphate, Phosphoric Acid Tris(2-Butoxyethyl) Ester, Phosphoric Acid Tri-2-Butoxyethyl Ester, 2-Butoxyethanol Phosphate, Tris(Butoxyethyl) Phosphate, Organophosphate Plasticizer, Phosflex T-BEP, PHOSFLEX T-BEP, Phosflex TBEP, PHOSFLEX TBEP, Phosflex T BEP, PHOSFLEX T BEP, Tris(2-butoxyethyl) Phosphate, Tri(2-butoxyethyl) Phosphate, 2-Butoxyethyl Phosphate Ester, Phosphoric Acid Tris(2-butoxyethyl) Ester, Phosphoric Acid Tri(2-butoxyethyl) Ester, TBEP, T-BEP, Tributoxyethyl Phosphate, Tri Butoxyethyl Phosphate, Tris Butoxyethyl Phosphate, Tris(Butoxyethyl) Phosphate, Triethylene Glycol Monobutyl Ether Phosphate, Butoxyethyl Phosphate, Butoxyethyl Phosphate Ester, Alkyl Phosphate Ester TBEP, Phosphate Ester Plasticizer, TBEP Plasticizer, Phosflex T-BEP Plasticizer, Phosflex T-BEP Flame Retardant, Phosflex T-BEP Phosphate Ester, Phosflex T-BEP Solvent, Phosflex T-BEP Additive, Phosflex T-BEP Industrial Grade, Phosflex T-BEP Technical Grade, Phosflex T-BEP Chemical Grade, Phosflex T-BEP High Purity, High Purity Phosflex T-BEP, Phosflex T-BEP Liquid, Phosflex T-BEP Flame Retardant Plasticizer, Phosflex T-BEP Resin Additive, Phosflex T-BEP Polymer Additive, Phosflex T-BEP Coating Additive, Phosflex T-BEP Paint Additive, Phosflex T-BEP Adhesive Additive, Phosflex T-BEP Rubber Additive, Phosflex T-BEP PVC Additive, Phosflex T-BEP Flexible Polymer Additive

APPLICATIONS

Phosflex T-BEP is used as a plasticizer in PVC and vinyl resin systems to improve flexibility, processability, and softness.
Phosflex T-BEP is incorporated into flexible vinyl formulations where phosphate ester chemistry provides plasticizing behavior and flame-retardant contribution.
Phosflex T-BEP is used in polymer compounds where low volatility and good compatibility support durable flexible performance.

Phosflex T-BEP is used in floor polishes, waxes, and surface-care formulations as a plasticizer, coalescent, and leveling aid.
Phosflex T-BEP is incorporated into acrylic floor finishes where film formation, gloss, toughness, and flexibility are important.
Phosflex T-BEP is used in maintenance products where compatibility with polymer emulsions and resin systems must be verified.

Phosflex T-BEP is used in coatings, lacquers, and inks as a solvent and plasticizing aid.
Phosflex T-BEP is incorporated into cellulose ester lacquers, vinyl coatings, acrylic systems, and specialty ink vehicles where solvency and flexibility are required.
Phosflex T-BEP is used in coating systems where improved film toughness, reduced brittleness, and controlled evaporation behavior are useful.

Phosflex T-BEP is used in adhesives and sealants to improve flexibility, flow, and compatibility with selected polymer binders.
Phosflex T-BEP is incorporated into pressure-sensitive adhesives, construction sealants, and specialty bonding systems where plasticizer permanence is important.
Phosflex T-BEP is used in elastomeric systems where phosphate ester plasticization supports lower hardness and improved deformation behavior.

Phosflex T-BEP is used as a specialty solvent and processing aid in pigment dispersions and industrial chemical formulations.
Phosflex T-BEP is incorporated into pigment grinding, textile auxiliaries, and resin processing systems where phosphate ester solvency can support wetting and flow.
Phosflex T-BEP is valued because Phosflex T-BEP provides plasticization, solvency, low volatility, flame-retardant contribution, and resin compatibility across PVC, coatings, floor polishes, adhesives, inks, and specialty industrial applications.

Phosflex T-BEP is used as a flame-retardant plasticizer in polymer formulations.
Phosflex T-BEP improves flexibility while contributing phosphorus-based flame-retardant performance.
Phosflex T-BEP is used in PVC compounds.
Phosflex T-BEP helps improve softness, processing behavior, and functional additive performance.

Phosflex T-BEP is used in synthetic rubber formulations.
Phosflex T-BEP supports flexibility and flame resistance in compatible elastomer systems.
Phosflex T-BEP is used in polyurethane formulations.
Phosflex T-BEP can act as a functional plasticizer in selected polyurethane materials.

Phosflex T-BEP is used in coating formulations.
Phosflex T-BEP improves film flexibility and contributes to fire-resistance performance.
Phosflex T-BEP is used in industrial paint systems.
Phosflex T-BEP helps adjust hardness, flexibility, and durability in cured coatings.

Phosflex T-BEP is used in floor polish formulations.
Phosflex T-BEP helps improve film formation, leveling, and surface finish.
Phosflex T-BEP is used in wax and polish products.
Phosflex T-BEP supports gloss, spreading, and durable surface appearance.

Phosflex T-BEP is used in textile coating formulations.
Phosflex T-BEP improves flexibility and flame-retardant behavior in coated fabrics.
Phosflex T-BEP is used in back-coating systems for textiles.
Phosflex T-BEP supports durable finishing where softness and fire performance are needed.

Phosflex T-BEP is used in adhesive formulations.
Phosflex T-BEP improves flexibility in selected polymer adhesive systems.
Phosflex T-BEP is used in sealant formulations.
Phosflex T-BEP supports elastic performance and plasticization in compatible sealants.

Phosflex T-BEP is used in plastisol formulations.
Phosflex T-BEP helps adjust viscosity, fusion behavior, and final flexibility.
Phosflex T-BEP is used in vinyl foam formulations.
Phosflex T-BEP supports softness and functional additive performance in foam systems.

Phosflex T-BEP is used in cellulose acetate formulations.
Phosflex T-BEP acts as a plasticizer for selected cellulose ester materials.
Phosflex T-BEP is used in nitrocellulose lacquer systems.
Phosflex T-BEP helps improve flexibility and film performance in compatible lacquers.

Phosflex T-BEP is used in acrylic resin formulations.
Phosflex T-BEP improves plasticization and compatibility in selected acrylic systems.
Phosflex T-BEP is used in vinyl resin formulations.
Phosflex T-BEP supports flexible film formation and processing stability.

Phosflex T-BEP is used in lubricant additive development.
Phosflex T-BEP contributes phosphate ester functionality to specialty fluid systems.
Phosflex T-BEP is used in hydraulic fluid formulations.
Phosflex T-BEP supports fire-resistant functional fluid design.

Phosflex T-BEP is used in metalworking fluid formulations.
Phosflex T-BEP can improve lubricity and additive compatibility in selected systems.
Phosflex T-BEP is used in defoamer and specialty additive blends.
Phosflex T-BEP helps adjust solvency and surface behavior in compatible formulations.

Phosflex T-BEP is used in pigment dispersion systems.
Phosflex T-BEP supports wetting and dispersion of pigments in resin-based formulations.
Phosflex T-BEP is used in printing ink formulations.
Phosflex T-BEP helps improve flow, flexibility, and film properties.

Phosflex T-BEP is used in paper coating formulations.
Phosflex T-BEP can support flexibility and surface finish in selected coating systems.
Phosflex T-BEP is used in specialty chemical manufacturing.
Phosflex T-BEP serves as a functional phosphate ester additive.

Phosflex T-BEP is used in research and development of flame-retardant plasticizers.
Phosflex T-BEP supports studies requiring a liquid organophosphate with plasticizing performance.
Phosflex T-BEP is used in formulation development where solvency and flexibility are needed.
Phosflex T-BEP supports applications requiring plasticization, compatibility, and phosphorus-based functionality.

DESCRIPTION

Phosflex T-BEP is a trialkyl phosphate ester based on tris(2-butoxyethyl) phosphate chemistry, and Phosflex T-BEP belongs to the organophosphate ester family of plasticizers and functional solvents.
Phosflex T-BEP contains a phosphorus-oxygen ester core with three butoxyethyl groups, giving Phosflex T-BEP both polar phosphate functionality and organic solvent compatibility.
Phosflex T-BEP is the same chemical type commonly referred to as TBEP, tributoxyethyl phosphate, or tris(2-butoxyethyl) phosphate.

Phosflex T-BEP functions as a plasticizer by increasing polymer chain mobility, lowering stiffness, and improving flexibility in compatible resin systems.
Phosflex T-BEP can contribute to flame retardancy because phosphate esters introduce phosphorus into the formulation, although final flame performance depends on polymer type, loading level, and complete formulation design.
Phosflex T-BEP also acts as a solvent or co-solvent for selected resins, helping processing, film formation, pigment wetting, and dispersion in coatings and industrial formulations.

Phosflex T-BEP should be evaluated in the complete formulation because compatibility, migration, volatility, extraction resistance, odor, and low-temperature flexibility depend on the polymer matrix and additive package.
Phosflex T-BEP should be protected from strong oxidizers, strong acids, strong bases, excessive heat, and moisture contamination during storage.
Phosflex T-BEP should be used according to supplier recommendations, workplace safety standards, chemical inventory requirements, and the regulatory status of the target application.

Phosflex T-BEP is a commercial phosphate ester plasticizer.
Phosflex T-BEP is commonly associated with tris(2-butoxyethyl) phosphate chemistry.
Phosflex T-BEP is also known in many contexts as TBEP.
Phosflex T-BEP is typically supplied as a clear to pale yellow liquid.

Phosflex T-BEP combines plasticizing ability with phosphorus-containing functionality.
Phosflex T-BEP has useful compatibility with many resins and polymer systems.
Phosflex T-BEP has relatively low volatility compared with many lighter solvents.
Phosflex T-BEP is valued for improving flexibility and processing behavior.

Phosflex T-BEP can contribute flame-retardant performance in suitable formulations.
Phosflex T-BEP performance depends on polymer type, dosage, additive package, and processing conditions.
Phosflex T-BEP can be blended with other plasticizers to balance cost and performance.
Phosflex T-BEP is useful in coatings, plastics, elastomers, polishes, adhesives, and functional fluids.

Phosflex T-BEP can improve flow and film-forming behavior in coating systems.
Phosflex T-BEP can help adjust viscosity and surface properties in compatible formulations.
Phosflex T-BEP quality may be defined by color, acidity, water content, ester content, and viscosity.
Phosflex T-BEP should be stored in tightly closed containers.

Phosflex T-BEP should be protected from excessive heat, moisture, and incompatible materials.
Phosflex T-BEP should be handled with suitable industrial hygiene practices.
Phosflex T-BEP should be used according to supplier safety data and regulatory requirements.
Phosflex T-BEP may irritate skin, eyes, or respiratory passages depending on exposure conditions.

Phosflex T-BEP is selected when a liquid phosphate ester plasticizer is required.
Phosflex T-BEP is useful where flexibility, solvency, and functional additive performance must be balanced.
Phosflex T-BEP is an important specialty additive for polymer and coating industries.
Phosflex T-BEP is valued for its combination of plasticizing efficiency, compatibility, and phosphorus content.

Phosflex T-BEP supports applications requiring durable flexible materials and improved formulation performance.

PROPERTIES

CAS Number: 78-51-3
EC Number: 201-122-9
Chemical Formula: C18H39O7P
Molecular Weight: 398.47 g/mol
Common Name: Phosflex T-BEP
Chemical Type: Trialkyl phosphate ester; organophosphate plasticizer; specialty solvent; flame-retardant plasticizer
Appearance: Clear colorless to pale yellow liquid
Odor: Mild characteristic odor
Solubility: Low solubility in water; soluble or miscible with many organic solvents and compatible resin systems
Function: Plasticizer, solvent, coalescent, flame-retardant contributor, pigment grinding aid, processing aid
Phosphorus Content: Grade dependent
Viscosity: Low to moderate liquid viscosity, grade dependent
Volatility: Low volatility compared with many conventional solvents
Compatibility: PVC, vinyl resins, acrylics, cellulose esters, coatings, inks, adhesives, floor polishes, and selected elastomers, formulation dependent
Stability: Stable under recommended storage; protect from heat, moisture, and incompatible chemicals
Storage Temperature: 15–30°C, tightly closed, dry, well-ventilated
Shelf Life: Typically 12–36 months in original sealed packaging, supplier dependent

FIRST AID

Inhalation:
Move to fresh air if vapors, mist, or aerosols are inhaled.
Seek medical attention if coughing, headache, dizziness, respiratory irritation, or breathing discomfort occurs.
Avoid further exposure until ventilation and vapor or mist controls are confirmed.

Skin Contact:
Remove contaminated clothing and wash skin thoroughly with soap and water.
Seek medical advice if irritation, redness, dryness, or prolonged discomfort develops.
Wash contaminated clothing before reuse.

Eye Contact:
Rinse cautiously with water for at least 15 minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation, pain, or blurred vision persists.

Ingestion:
Rinse mouth with water and do not induce vomiting.
Seek medical attention or contact a poison center if discomfort occurs or if a significant amount is swallowed.
Never give anything by mouth to an unconscious person.

Note to Physicians:
Treat symptomatically.
Monitor for irritation, gastrointestinal discomfort, and possible systemic effects after significant phosphate ester exposure.
Provide supportive care as needed.

HANDLING AND STORAGE

Handling:
Use appropriate PPE including chemical-resistant gloves, safety glasses, and protective clothing for bulk handling.
Avoid breathing vapors, mist, or aerosols and avoid prolonged skin or eye contact.
Use clean, dry equipment to prevent contamination and maintain consistent plasticizer quality.

Ventilation:
Use general ventilation for normal handling.
Use local exhaust ventilation where mist, aerosol, heated vapor, or spray exposure may be generated.
Provide adequate ventilation during heating, blending, filling, and large-scale transfer operations.

Storage:
Store in tightly closed containers in a cool, dry, well-ventilated area.
Protect from excessive heat, direct sunlight, moisture contamination, and incompatible chemicals.
Keep away from strong oxidizers, strong acids, strong bases, and reactive materials.

Spill and Leak Procedures:
Eliminate unnecessary ignition sources and ventilate the area.
Contain spill with inert absorbent and collect into suitable chemical waste containers.
Prevent entry into drains, soil, and waterways and dispose of waste according to local regulations.

Handling Precautions:
Confirm compatibility because Phosflex T-BEP plasticizer performance depends on resin type, additive package, loading level, and processing temperature.
Control migration and extraction resistance because phosphate ester plasticizers can behave differently in different polymer systems and end-use environments.
Rotate stock using FIFO practices to maintain consistent color, acidity, water content, odor profile, and plasticizing performance.