Phosphorus oxychloride appears as a colorless fuming liquid with a pungent odor. Density 14.0 lb / gal. Very toxic by inhalation and corrosive to metals and tissue. Used in gasoline additives and hydraulic fluids.
Corrosive
Acute toxic
Health hazard
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Phosphorus oxychloride appears as a colorless fuming liquid with a pungent odor. Density 14.0 lb / gal. Very toxic by inhalation and corrosive to metals and tissue. Used in gasoline additives and hydraulic fluids.
| Physical Description | Phosphorus oxychloride appears as a colorless fuming liquid with a pungent odor. Density 14.0 lb / gal. Very toxic by inhalation and corrosive to metals and tissue. Used in gasoline additives and h… |
| Color/Form | Clear, colorless to yellow, oily liquid [Note: A solid below 34 degrees F]. |
| Odor | Pungent & musty odor |
| Melting Point | 34.2 °F (EPA, 1998) |
| Boiling Point | 223 °F at 760 mmHg (EPA, 1998) |
| Flash Point | Not Flammable (EPA, 1998) |
| Density | 1.645 at 77 °F (EPA, 1998) - Denser than water; will sink |
| Solubility | Decomposes (NIOSH, 2024) |
| Vapor Pressure | 40 mmHg at 81.14 °F (EPA, 1998) |
| Refractive Index | Index of refraction: 1.460 at 25 °C/D |
| IUPAC Name | phosphoryl trichloride |
| Molecular Formula | Cl3OP |
| Molecular Weight | 153.33 g/mol |
| CAS | 10025-87-3 |
| SMILES | O=P(Cl)(Cl)Cl |
| InChIKey | XHXFXVLFKHQFAL-UHFFFAOYSA-N |
| Catalog No | KC.1610150 |
| Pack sizes | 500ML |
⚠️ For information only; not a substitute for the official SDS.