Substance profile
Tributyl Phosphate
Tributyl Phosphate is a colorless to pale-yellow liquid and is odorless.
01 · Identification
What Tributyl Phosphate is
Tributyl Phosphate is a colorless to pale-yellow liquid and is odorless. Its molecular formula is C12H27O4P and its molecular weight is 266.31 g/mol. It boils at 289 °C, melts at -80 °C.
Under the GHS it carries the signal word Warning.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H302 | Harmful if swallowed. |
| H315 | Causes skin irritation. |
Precautionary statements: P201, P264, P270, P280, P301, P302, P308, P312, P313, P330, P332, P352
03 · Physical and chemical properties
Tributyl Phosphate properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Boiling point | 288.89 °C (552 °F) | at 760 mmHg | CAMEO |
| 288.89 °C (552 °F) | OSHA | ||
| 289 °C (552.2 °F) | at 760 mmHg | DOE PAC | |
| Melting point | -80 °C (-112 °F) | NIOSH | |
| -80 °C (-112 °F) | below this value | HSDB | |
| Density | 0.9814 g/cm³ | HSDB | |
| 0.98 g/cm³ | NIOSH | ||
| 0.978 g/cm³ | at 20 °C | HSDB | |
| Solubility | Soluble in diethyl ether, benzene, carbon disulfide; miscible with ethanol | HSDB | |
| Miscible with most solvents and diluents | HSDB | ||
| In water, 280 mg/L at 25 °C | at 25 °C | HSDB | |
| Vapor pressure | 13.7 mmHg | at 20 °C | CAMEO |
| 0.0011 mmHg | at 25 °C | HSDB | |
| 0.004 mmHg | at 25 °C | NIOSH | |
| Flash point | 146 °C (294.8 °F) | open cup | HSDB |
| 146.11 °C (295 °F) | HSDB | ||
| 145 °C (293 °F) | HSDB | ||
| Autoignition temperature | 410 °C (770 °F) | HSDB | |
| 482 °C (899.6 °F) | above this value | ICSC | |
| Lower explosive limit (LEL) | Class IIIB Combustible Liquid: Fl.P. at or above 200 °F. | NIOSH | |
| Vapor density | 9.2 (air = 1) | HSDB | |
| Odor threshold | Odor perception threshold 0.014 mg/L. | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling Tributyl Phosphate
Storage conditions
Conditions for safe storage, including any incompatibilities: Keep container tightly closed in a dry and well-ventilated place. Containers which are opened must be carefully resealed and kept upright to prevent leakage.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Incompatible materials: Strong oxidizing agents, Strong bases
Source: Hazardous Substances Data Bank (HSDB)
Reactivity
TRIBUTYL PHOSPHATE is incompatible with strong oxidizing agents and strong bases. Attacks some forms of plastics and rubber (NTP, 1992).
Source: CAMEO Chemicals
Planning storage for a mix of chemicals? Check Tributyl Phosphate in the storage compatibility matrix →