| Agent Name |
Tributyl phosphate |
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| CAS Number |
126-73-8 |
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| Formula |
C12-H27-O4-P |
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| Major Category |
Other Classes |
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| Synonyms |
Butyl phosphate; Butyl phosphate, ((BuO)3PO); Butyl phosphate, tri-; Celluphos 4; Disflamoll TB; MCS 2495; Phosphoric acid, tributyl ester; TBP; Tri-N-butylphosphate; Tri-n-butyl phosphate; Tributilfosfato [Italian]; Tributoxyphosphine oxide; Tributyl phosphate; Tributyle (phosphate de) [French]; Tributylfosfaat [Dutch]; Tributylfosfat [Czech]; Tributylphosphat [German]; Tributylphosphate; [ChemIDplus] |
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| Category |
Phosphorus Compounds |
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| Description |
Colorless to pale-yellow, odorless liquid; [NIOSH] |
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| Sources/Uses |
Used as a solvent, plasticizer, and antifoam agent; [ACGIH] Used as an antifoaming agent (concrete, textile, and paper industries); [HSDB] |
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| Comments |
Animals given repeated oral doses show pathological changes of the urinary bladder epithelium. [ACGIH] If left on clothing, can cause reddening of skin; [CHRIS] Irritating to the skin, eyes, and respiratory tract; [ICSC] |
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| Exposure Assessment |
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| BEI |
Cholinesterase activity in red blood cells = 70% of individual's baseline sampling time discretionary |
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| Skin Designation (ACGIH) |
No |
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| TLV (ACGIH) |
0.2 ppm |
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| PEL (OSHA) | 5 mg/m3 |
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| MAK |
1 ppm |
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| IDLH (NIOSH) |
30 ppm |
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| Excerpts from Documentation for IDLHs |
"Human data: Nausea and headache have been reported in workers exposed to 15 mg/m3 (1.4 ppm) [Mastromatteo 1964]." [NIOSH] |
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| Vapor Pressure |
0.00113 mm Hg |
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| Lethal Concentration |
LC50 (rats) = 28,000 mg/m3/1H |
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| Explanatory Notes |
Flash point = 146 deg C; |
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| Flammability (NFPA) |
1: must be preheated |
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| Adverse Effects |
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| Dermatotoxin |
Skin Burns |
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| Links to Other NLM Databases |
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| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: TRIBUTYL PHOSPHATE
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