Trioctyl phosphate
Agent Name
Trioctyl phosphate
Alternative Name
Tris(2-ethylhexyl) phosphate
CAS Number
78-42-2
Formula
C24-H51-O4-P
Major Category
Other Classes
Synonyms
Tris(2-ethylhexyl) phosphate; 1-Hexanol, 2-ethyl-, phosphate; 2-Ethyl-1-hexanol phosphate; 2-Ethylhexanol, phosphate triester; Disflamoll TOF; Flexol TOF; Flexol Plasticizer TOF; Kronitex TOF; Phosphoric acid, tris(2-ethylhexyl) ester; Phosphoric acid, tris(ethylhexyl) ester; TOF; Tri(2-ethylhexyl) phosphate; Tri(2-ethylhexyl)phosphate; Triethylhexyl phosphate; Tris(2-ethylhexy)phosphate; Tris(2-ethylhexyl)phosphate; Tris(ethylhexyl) phosphate; Tris-(2-ethylhexyl)fosfat [Czech]; [ChemIDplus] TEHP; [HSDB]
Category
Organophosphates, Other
Description
Colorless liquid; [ICSC] Clear colorless to pale yellow liquid; [CAMEO]
Sources/Uses
Used as a flame-retardant plasticizer for polyvinyl chloride and cellulose nitrate, an antifoaming agent, and a co-solvent in hydrogen peroxide production; [HSDB]
Comments
Decomposed by heating forming phosphine and phosphorous oxides; A skin and eye irritant; [ICSC] Irritating to skin and eyes; Low acute toxicity in mammals; Oral LD50 (rat) >36,800 mg/kg; Does not alter cholinesterases; Dermal absorption is expected to be low; [HSDB]; A moderate skin irritant, based on animal studies; [CHEMINFO] A skin and eye irritant; [eChemPortal: ERMA] An irritant; [MSDSonline]
Biomedical References
Exposure Assessment
Vapor Pressure
8.25E-08 mm Hg
Lethal Concentration
LC50 (guinea pigs) = 450 mg/m3/30min
Diseases, Processes, and Activities Linked to This Agent
Other Information
No other related information on this agent was found.