Flame Retardants
REACH
Tris(2-ethylhexyl) phosphate
CAS Number
78-42-2
EC Number
201-116-6
Abbreviation
TEHP
What is Tris(2-ethylhexyl) phosphate?
Tris(2-ethylhexyl) phosphate (CAS 78-42-2), commonly abbreviated as TEHP, is an organophosphate ester used across industrial manufacturing as a plasticizer, flame retardant, and solvent.
Where is Tris(2-ethylhexyl) phosphate used?
- Plastics and polymer processing: non-halogenated flame retardant and plasticizer in PVC, rubber, and synthetic resins, improving flexibility while meeting fire performance requirements
- Coatings and adhesives: solvent and plasticizing agent to control viscosity, film formation, and substrate adhesion
- Textile and leather: processing aid and finishing component compatible with synthetic fibers and surface treatments
- In lubricants and metalworking fluids it acts as an extreme-pressure additive and functional solvent.
Commercial specifications
- Purity levels typically range from 99% and above
- Documentation including COA and TDS
- Clear, low-viscosity liquid in drum and IBC quantities, with bulk tanker options
Other Names (Synonyms)
Tri(2-ethylhexyl) phosphate|Phosphoric acid, tris(2-ethylhexyl) ester|2-Ethyl-1-hexanol phosphate|TEHP|BQC0BKB72S|TOF|Flexol TOF
What are the physical properties of Tris(2-ethylhexyl) phosphate?
Melting Point -74 °C
Boiling Point 215 °C @ Press: 4 Torr
Density 0.924 g/cm³ @ Temp: 26 °C
Flash Point >230 °F
Color Colourless
Form Liquid
Water Solubility <0.1 g/100 mL at 18 ºC
Vapor Pressure 2.1 mm Hg ( 20 °C)
Refractive Index n 20/D 1.444(lit.)
pH 7 (H2O, 20℃)
How is Tris(2-ethylhexyl) phosphate classified and handled safely? Learn More
Warning
GHS07· Irritant GHS09· Environmental Hazard
Hazard Statements
H315 Causes skin irritation
H319 Causes serious eye irritation
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
Precautionary Statements
P264 Wash … thoroughly after handling.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P321 Specific treatment (see … on this label).
Which trade and regulatory codes apply to Tris(2-ethylhexyl) phosphate?
HS Code 29190090
Storage Class 10 - Combustible liquids
WGK (Germany) 2