Dibutyl phosphite
- CAS NO.：1809-19-4
- Empirical Formula: C8H19O3P
- Molecular Weight: 194.21
- MDL number: MFCD00066633
- EINECS: 217-316-1
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-04-23 13:52:06
What is Dibutyl phosphite?
Chemical properties
clear colorless to slightly yellow liquid
The Uses of Dibutyl phosphite
Dibutyl phosphite was used as anti-wear agent in bio-based lubricating oil.
General Description
Dibutyl phosphite undergoes addition reaction with Schiff bases to yield 1,4-bis[N-methyl(dibutoxyphosphonyl)-1-(2-furyl)]diaminobenzene and 4,4′-bis[N-methyl(dibutoxyphosponyl)-1-phenyl]benzidine. It is antiwear and extreme-pressure additive in industrial gear oils.
Flammability and Explosibility
Non flammable
Properties of Dibutyl phosphite
| Melting point: | 70.5 °C |
| Boiling point: | 118-119 °C/11 mmHg (lit.) |
| Density | 0.995 g/mL at 25 °C (lit.) |
| vapor pressure | <0.1 mm Hg ( 20 °C) |
| refractive index | n |
| Flash point: | 250 °F |
| solubility | H2O: soluble7.3g/L at 25°C |
| form | Liquid |
| Specific Gravity | 0.995 |
| color | Clear |
| Water Solubility | slightly soluble |
| BRN | 1099706 |
| CAS DataBase Reference | 1809-19-4(CAS DataBase Reference) |
| NIST Chemistry Reference | Dibutyl hydrogen phosphite(1809-19-4) |
| EPA Substance Registry System | Phosphonic acid, dibutyl ester (1809-19-4) |
Safety information for Dibutyl phosphite
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07  Health Hazard GHS08 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H351:Carcinogenicity H412:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P202:Do not handle until all safety precautions have been read and understood. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P273:Avoid release to the environment. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P308+P313:IF exposed or concerned: Get medical advice/attention. |
Computed Descriptors for Dibutyl phosphite
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