Phosphorus pentachloride
IUPAC: pentachloro-lambda5-phosphane
| Formula / Notation | PCl5 |
|---|---|
| CAS Number | 10026-13-8 |
| Molecular Weight | 208.2 |
| 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) |
| Appearance | 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 ... |
| Also Known As | pentachloro-lambda5-phosphane; 10026-13-8; Phosphorus(V) chloride; Pentachlorophosphorane; Phosphorane, pentachloro-; Phosphoric chloride; Phosphorus perchloride; PCl5; Phosphorous pentachloride; Phosphorpentachlorid |
| Category | Inorganic Compounds |
What is Phosphorus pentachloride?
Phosphorus pentachloride (PCl5) is an inorganic compound that appears as 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 .... It has a molecular weight of 208.2 g/mol. Its IUPAC name is pentachloro-lambda5-phosphane. Boiling point: 320 °F at 760 mmHg (EPA, 1998). Melting point: (decomposes) 298 °F (under pressure) sublimes at about 212 °F without melting (EPA, 1998).
Formula & Notation
IUPAC Name: pentachloro-lambda5-phosphane
Other Names / Synonyms: pentachloro-lambda5-phosphane; 10026-13-8; Phosphorus(V) chloride; Pentachlorophosphorane; Phosphorane, pentachloro-; Phosphoric chloride; Phosphorus perchloride; PCl5; Phosphorous pentachloride; Phosphorpentachlorid
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| 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 |
| Molecular Weight | 208.2 |
| Solubility | Reacts with water (NIOSH, 2024) |
| Appearance | 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 ... |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Phosphorus pentachloride (PCl5) is an inorganic compound that appears as 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 .... It has a molecular weight of 208.2 g/mol. Its IUPAC name is pentachloro-lambda5-phosphane. Boiling point: 320 °F at 760 mmHg (EPA, 1998). Melting point: (decomposes) 298 °F (under pressure) sublimes at about 212 °F without melting (EPA, 1998).
Used in industrial processes, materials science, semiconductor manufacture, ceramics, or as a catalyst.
May be corrosive, toxic, or an oxidising agent. Handle in well-ventilated area. Consult SDS before use.
The formula or notation for Phosphorus pentachloride is: PCl5