| Agent Name |
Dibutyl phosphate |
|---|
| CAS Number |
107-66-4 |
|---|
| Formula |
C8-H19-O4-P |
|---|
| Major Category |
Other Chemicals |
|---|
| Synonyms |
DP 4 (coupling agent); Di-n-butyl hydrogen phosphate; Di-n-butyl phosphate; Dibutyl acid phosphate; Dibutyl hydrogen phosphate; Dibutyl phosphate; Phosphoric acid, dibutyl ester; [ChemIDplus] |
|---|
| Category |
Phosphorus Compounds |
|---|
| Description |
Pale-amber, odorless liquid; [NIOSH] |
|---|
| Sources/Uses |
Used as an a catalyst and an antifoaming agent; [ACGIH] Used as a catalyst for resins and paints, a dielectric medium, a plasticizer (added to polymers to effect flexibility and/or toughness), a hydraulic fluid, and an antistatic in the textile industry"; [HSDB] |
|---|
| Comments |
Workers reported respiratory irritation and headache. [ACGIH] A skin, eye, and respiratory tract irritant; [ICSC] Liver changes were found in animals fed fatal doses of 1000 mg/kg. [HSDB] |
|---|
| Exposure Assessment |
|---|
| Skin Designation (ACGIH) |
No |
|---|
| TLV (ACGIH) |
1 ppm |
|---|
| STEL (ACGIH) |
2 ppm |
|---|
| PEL (OSHA) |
1 ppm |
|---|
| IDLH (NIOSH) |
30 ppm |
|---|
| Excerpts from Documentation for IDLHs |
Basis for revised IDLH: Due to the lack of relevant acute toxicity data, the revised IDLH for dibutyl phosphate is 30 ppm based on an analogy to tributyl phosphate which has a revised IDLH of 30 ppm. |
|---|
| Vapor Pressure |
9.6 x 10 -05 mm Hg |
|---|
| Explanatory Notes |
See 2008 Notice of Intended Changes; [ACGIH] |
|---|
| Flammability (NFPA) |
2: high ambient temperature required |
|---|
| Adverse Effects |
|---|
| Hepatotoxin |
Hepatotoxin, Secondary |
|---|
| Links to Other NLM Databases |
|---|
| Health Studies |
Human Health Effects from Hazardous Substances Data Bank: DIBUTYL PHOSPHATE
|
|---|
|
|
