Corrosive
Acute toxic
Health hazard
⚠️ For information only; not a substitute for the official Safety Data Sheet (SDS).
Phosphorus pentachloride is a greenish-yellow crystalline solid with an irritating odor. It is decomposed by water to form hydrochloric and phosphoric acid and heat. This heat may be sufficient to ignite surrounding combustible material. It is corrosive to metals and tissue. Long term exposure to low concentrations or short term exposure to high concentrations can result in adverse health effects from inhalation.
| Physical Description | Phosphorus pentachloride is a greenish-yellow crystalline solid with an irritating odor. It is decomposed by water to form hydrochloric and phosphoric acid and heat. This heat may be sufficient to … |
| Color/Form | White to pale yellow crystalline mass |
| Odor | Pungent, unpleasant odor |
| Melting Point | (decomposes) 298 °F (under pressure) sublimes at about 212 °F without melting (EPA, 1998) |
| Boiling Point | 320 °F at 760 mmHg (EPA, 1998) |
| Density | 3.6 (NIOSH, 2024) - Denser than water; will sink |
| Solubility | Reacts with water (NIOSH, 2024) |
| Vapor Pressure | 1 mmHg at 131.9 °F (EPA, 1998) |
| IUPAC Name | pentachloro-lambda5-phosphane |
| Molecular Formula | Cl5P |
| Molecular Weight | 208.2 g/mol |
| CAS | 10026-13-8 |
| SMILES | P(Cl)(Cl)(Cl)(Cl)Cl |
| InChIKey | UHZYTMXLRWXGPK-UHFFFAOYSA-N |
| Catalog No | KC.1610151 |
| Pack sizes | 500GM |
⚠️ For information only; not a substitute for the official SDS.
