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Phosflex 176C is a commercial grade of tris(2-butoxyethyl) phosphate used as a plasticizer, solvent, and performance additive in industrial formulations, and Phosflex 176C is valued for improving flexibility, flow, and film formation in polymer systems.
Phosflex 176C is commonly used in coatings, inks, adhesives, and polymer processing where compatibility with binder systems and low-volatility plasticization are required, and Phosflex 176C can also provide foam-control benefits in selected high-shear processes.
Phosflex 176C is typically supplied as a clear, colorless liquid, and Phosflex 176C performance depends on purity, water content, viscosity, dosage, and compatibility with the complete formulation.
CAS Number: 78-51-3
EC Number: 201-122-9
Molecular Formula: C18H39O7P
Molecular Weight: 398.47 g/mol
Synonyms: Phosflex 176C, Tris(2-Butoxyethyl) Phosphate, TBEP, Tributoxyethyl Phosphate, Tri(2-Butoxyethyl) Phosphate, Phosphoric Acid Tris(2-Butoxyethyl) Ester, Amgard TBEP (equivalent naming), Kronitex KP-140 (equivalent naming), Phosflex T-BEP (equivalent naming), Organophosphate Plasticizer, TBEP Plasticizer Grade, Tris(2-Butoxyethyl) Phosphate Plasticizer, Phosflex 176C, Phosflex 176 C, PHOSFLEX 176C, PHOSFLEX 176 C, Phosflex 176-C, Phosflex 176C Plasticizer, Phosflex 176C Flame Retardant, Phosflex 176C Flame Retardant Plasticizer, Phosflex 176C Phosphate Ester, Phosflex 176C Organophosphate Ester, Phosflex 176C Phosphoric Ester, Phosflex 176C Trialkyl Phosphate, Phosflex 176C Specialty Phosphate, Phosflex 176C Industrial Phosphate Ester, Phosflex 176C Commercial Phosphate Ester, Phosflex 176C Technical Grade, Phosflex 176C Industrial Grade, Phosflex 176C Commercial Grade, Phosflex 176C Polymer Additive, Phosflex 176C Resin Additive, Phosflex 176C Coating Additive, Phosflex 176C PVC Additive, Phosflex 176C Rubber Additive, Phosflex 176C Textile Auxiliary, Phosflex 176C Lubricant Additive, Phosflex 176C Hydraulic Fluid Additive, Phosflex 176C Solvent Additive, Phosflex 176C Functional Additive, Phosflex 176C Performance Additive, Phosflex 176C Low-Volatility Plasticizer, Phosflex 176C Flexible PVC Plasticizer, Phosflex 176C Synthetic Resin Plasticizer, Phosflex 176C Coating Plasticizer, Phosflex 176C Industrial Plasticizer, Phosflex 176C Commercial Plasticizer, Phosflex 176C Specialty Plasticizer, Phosflex 176C Non-Halogen Flame Retardant, Phosflex 176C Phosphorus Flame Retardant, Phosflex 176C Flame Retardant Additive, Phosflex 176C Plasticizing Additive
APPLICATIONS
Phosflex 176C is used as a plasticizer in PVC to improve flexibility, softness, and low-temperature performance.
Phosflex 176C is incorporated into flexible vinyl formulations to reduce brittleness and improve elongation.
Phosflex 176C is used in PVC compounds to support smoother processing and improved melt flow.
Phosflex 176C is used in waterborne acrylic coatings as a coalescing and film-forming aid in compatible formulations.
Phosflex 176C is incorporated into architectural coatings to support uniform film formation and improved appearance.
Phosflex 176C is used in industrial coatings to improve leveling, reduce defects, and enhance flow.
Phosflex 176C is used in printing inks to adjust viscosity, flow, and film properties in selected formulations.
Phosflex 176C is incorporated into gravure and flexographic inks to help balance drying and laydown behavior.
Phosflex 176C is used in overprint varnishes to improve smoothness and reduce surface defects.
Phosflex 176C is used in adhesives and sealants to improve flexibility and reduce brittleness in compatible binder systems.
Phosflex 176C is incorporated into pressure-sensitive adhesives to tune tack, cohesion, and peel performance.
Phosflex 176C is used in construction adhesives where plasticization supports durability and crack resistance.
Phosflex 176C is used in pigment dispersions to support wetting and help reduce entrapped air in compatible systems.
Phosflex 176C is incorporated into high-shear mixing operations to reduce foam persistence and improve process stability.
Phosflex 176C is used as a processing aid in coating manufacture where foam control and improved flow are beneficial.
Phosflex 176C is used in specialty plastics and elastomer systems in selected applications to tune hardness, flexibility, and processing behavior.
Phosflex 176C is incorporated into filled formulations to improve wetting and dispersion of mineral fillers.
Phosflex 176C is used in formulations where plasticization plus secondary benefits such as improved flow and reduced foaming are desired.
Phosflex 176C is used in wire and cable insulation compounds to improve bend performance.
Phosflex 176C is used in wire and cable jacketing to improve low-temperature flexibility.
Phosflex 176C is used in PVC extrusion to help achieve smoother melt flow in some formulations.
Phosflex 176C is used in PVC plastisols to adjust viscosity and improve leveling.
Phosflex 176C is used in dip-coating plastisol applications to improve cured film flexibility.
Phosflex 176C is used in spray-applied plastisol coatings to reduce brittleness in some systems.
Phosflex 176C is used in synthetic leather and coated textiles to improve drape and softness.
Phosflex 176C is used in coated fabric backings to improve flex resistance during folding.
Phosflex 176C is used in flexible vinyl wallcoverings to improve handling and durability.
Phosflex 176C is used in adhesives to reduce brittleness and improve peel flexibility.
Phosflex 176C is used in pressure-sensitive adhesives as a plasticizing additive in some formulations.
Phosflex 176C is used in sealants to improve joint-movement capability in some systems.
Phosflex 176C is used in caulks to improve flexibility and reduce cracking under movement.
Phosflex 176C is used in construction compounds where a phosphate ester plasticizer is desired.
Phosflex 176C is used in elastomer formulations to improve processing and softness in some blends.
Phosflex 176C is used in rubber compounding to improve low-temperature pliability in some mixes.
Phosflex 176C is used in polyurethane coatings as a flexibility modifier in some formulations.
Phosflex 176C is used in polyurethane sealants to improve softness and workability in some systems.
Phosflex 176C is used in paints and coatings to improve film flexibility in some resin systems.
Phosflex 176C is used in industrial coatings to reduce microcracking under thermal cycling in some applications.
Phosflex 176C is used in coatings to improve leveling and flow in some formulations.
Phosflex 176C is used in printing inks to improve ink film flexibility and rub resistance in some systems.
Phosflex 176C is used in inks to aid pigment wetting and dispersion in some vehicles.
Phosflex 176C is used in overprint varnishes to improve flexibility in some coating designs.
Phosflex 176C is used in floor polishes and floor finishes as a film-forming aid in some formulations.
Phosflex 176C is used in floor finish emulsions to improve gloss development in some systems.
Phosflex 176C is used in floor care products to improve scuff resistance in some films.
Phosflex 176C is used in wax emulsions to improve spread and reduce streaking in some maintenance products.
Phosflex 176C is used in surface-care formulations as a coupling additive in some blends.
Phosflex 176C is used in industrial cleaners as a solvency aid in some formulations.
Phosflex 176C is used in degreasers to help dissolve certain oily soils in some systems.
Phosflex 176C is used in specialty formulations where phosphate ester solvency is beneficial.
Phosflex 176C is used in plasticizer blends to fine-tune hardness and flexibility targets in PVC.
Phosflex 176C is used in flexible PVC compounds to balance migration behavior versus other plasticizers in some designs.
Phosflex 176C is used in formulation development to optimize compatibility with PVC resins and stabilizers.
Phosflex 176C is used in compounding trials to improve fast fusion behavior in some vinyl processes.
Phosflex 176C is used in outdoor vinyl applications in some formulations where flexibility retention is needed.
Phosflex 176C is used in consumer goods made from flexible vinyl to improve feel and toughness.
Phosflex 176C is used in industrial vinyl products to improve resistance to cracking under repeated bending.
Phosflex 176C is used in manufacturing troubleshooting to address brittle films in plastisol coatings.
Phosflex 176C is used in manufacturing troubleshooting to improve flow and leveling defects in floor finishes.
Phosflex 176C is used in quality control programs to benchmark plasticizer performance across batches.
Phosflex 176C is used in R&D screening to compare phosphate ester plasticizers for flexibility and solvency.
Phosflex 176C is used in pilot-scale trials to optimize dosage for target hardness and permanence.
Phosflex 176C is used in export-ready formulations where consistent plasticizer quality supports stable end-product performance.
DESCRIPTION
Phosflex 176C is a branded tris(2-butoxyethyl) phosphate product, and Phosflex 176C is an organophosphate ester built from butoxyethanol-derived groups attached to a phosphate center.
Phosflex 176C behaves as a relatively low-volatility, oil-like liquid, and Phosflex 176C can plasticize polymers by reducing intermolecular forces, improving flexibility and reducing brittleness of finished films.
Phosflex 176C can also influence surface tension and wetting, and these effects can improve pigment wetting, leveling, and film uniformity in coatings and inks.
Phosflex 176C is typically compatible with many organic binders, but compatibility testing is required because phase separation can occur in some resin or solvent packages.
Phosflex 176C may provide some flame-retardant contribution as an organophosphate additive, but performance depends on the complete formulation and regulatory requirements for the end use.
Phosflex 176C should be used according to applicable regulations for the target market because organophosphate additives may have use restrictions depending on product type and region.
Phosflex 176C is typically supplied as a clear, colorless liquid, and Phosflex 176C should be protected from contamination to maintain consistent performance.
Phosflex 176C should be stored in tightly closed containers and kept away from strong oxidizers to minimize degradation risk.
Phosflex 176C should be handled with good industrial hygiene practices because repeated contact can cause irritation in sensitive individuals.
Phosflex 176C is a trade-name phosphate ester commonly associated with tris(2-butoxyethyl) phosphate chemistry.
Phosflex 176C is typically supplied as a clear to pale liquid with low volatility in many industrial grades.
Phosflex 176C is primarily used as a plasticizer that improves flexibility and softness in polymer systems.
Phosflex 176C can also provide useful solvency that supports faster fusion in some vinyl formulations.
Phosflex 176C is often selected for good compatibility with PVC and various resin systems.
Phosflex 176C may contribute to reduced flammability in some formulations because it contains phosphorus.
Phosflex 176C performance depends strongly on dosage, resin type, and overall additive package.
Phosflex 176C can influence viscosity and flow in plastisols and coatings depending on formulation balance.
Phosflex 176C can affect migration and permanence behavior relative to other plasticizers, so comparative testing is common.
Phosflex 176C is commonly used in flexible vinyl applications such as flooring, sheet, films, and coated fabrics.
Phosflex 176C is also used in coatings, inks, adhesives, sealants, and floor-care products in some formulations.
Phosflex 176C can help improve film flexibility and reduce cracking under mechanical stress in some systems.
Phosflex 176C can improve leveling and surface uniformity in some finish and polish films.
Phosflex 176C can aid pigment wetting and dispersion in some ink and coating vehicles.
Phosflex 176C is typically blended with other plasticizers to achieve specific hardness and processing targets.
Phosflex 176C should be stored in tightly closed containers to prevent contamination and moisture ingress.
Phosflex 176C should be kept away from excessive heat and strong oxidizing conditions per standard chemical handling practice.
Phosflex 176C should be handled with appropriate industrial hygiene to minimize unnecessary skin contact and inhalation of mists.
Phosflex 176C grade selection commonly considers viscosity, color, odor, and purity consistency.
Phosflex 176C is often supplied in drums, IBCs, or bulk deliveries depending on industrial volume needs.
Phosflex 176C is valued for multifunctional behavior combining plasticization with useful solvency effects.
Phosflex 176C should be evaluated for regulatory and end-use requirements specific to each market and application.
Phosflex 176C is typically used at optimized treat rates to avoid haze, exudation, or instability in finished products.
Phosflex 176C is generally chosen when a balance of flexibility, durability, and formulation compatibility is required.
PROPERTIES
Chemical Formula: C18H39O7P
Molecular Weight: 398.47 g/mol
Common Name: Phosflex 176C
Chemical Type: Organophosphate ester; plasticizer; coalescent; process aid
Appearance: Clear, colorless liquid
Odor: Mild characteristic odor
Solubility: Insoluble to slightly soluble in water; soluble in many organic solvents; miscibility depends on system design
Density: About 1.0 g/cm³ (typical; grade dependent)
Viscosity: Moderate; temperature dependent
Volatility: Relatively low compared with many light solvents (grade dependent)
Stability: Stable under normal storage; avoid strong oxidizers and excessive heat
Storage Temperature: 5–30°C, tightly closed, dry, away from direct sunlight
Shelf Life: Typically 12–36 months in original sealed packaging (supplier dependent)
FIRST AID
Inhalation:
Move to fresh air if vapors or mists are inhaled.
Seek medical attention if respiratory irritation persists.
Avoid breathing aerosols during spraying or high-shear operations that generate mist.
Skin Contact:
Wash with soap and water after contact.
Remove contaminated clothing and wash before reuse.
Seek medical advice if irritation develops or persists.
Eye Contact:
Rinse cautiously with water for several minutes.
Remove contact lenses if present and easy to do, then continue rinsing.
Seek medical attention if irritation persists.
Ingestion:
Rinse mouth with water and do not induce vomiting.
Seek medical attention if discomfort occurs or if a significant amount is swallowed.
Never give anything by mouth to an unconscious person.
Note to Physicians:
Treat symptomatically.
No specific antidote is required.
Provide supportive care as needed.
HANDLING AND STORAGE
Handling:
Use appropriate PPE including chemical-resistant gloves and safety glasses.
Avoid prolonged skin contact and avoid splashing into eyes.
Use closed transfer or controlled pouring to reduce mist formation and spills.
Ventilation:
Use general ventilation for normal handling.
Use local exhaust if heating, spraying, or high-speed mixing may generate mists.
Avoid aerosol formation in enclosed spaces without adequate airflow.
Storage:
Store in tightly closed containers in a cool, dry, well-ventilated area.
Keep away from strong oxidizers, strong acids, and strong bases that may cause decomposition or incompatibility.
Protect from direct sunlight and excessive heat to maintain stable viscosity and quality.
Spill and Leak Procedures:
Contain spill and absorb with inert material.
Clean residue promptly because surfaces can become slippery.
Dispose of waste according to local regulations and facility procedures.
Handling Precautions:
Verify compatibility with the binder and solvent package because Phosflex 176C can plasticize strongly and may soften certain films if overdosed.
Optimize dosage because Phosflex 176C can affect drying, hardness, and block resistance in coatings depending on formulation balance.
Rotate stock using FIFO practices to maintain consistent quality and predictable processing performance.
