| Formula / Notation | PCl3 |
|---|---|
| CAS Number | 7719-12-2 |
| Molecular Weight | 137.33 |
| Melting Point | -170 °F (EPA, 1998) |
| Boiling Point | 169 °F at 760 mmHg (EPA, 1998) |
| Density | 1.574 at 69.8 °F (EPA, 1998) - Denser than water; will sink |
| Solubility | Reacts with water (NIOSH, 2024) |
| Appearance | Phosphorus trichloride appears as a colorless or slightly yellow fuming liquid with a pungent and irritating odor resembling that of hydrochloric acid. Causes severe burns to skin, eyes and mucous ... |
| Also Known As | trichlorophosphane; 7719-12-2; Trichlorophosphine; Phosphorous trichloride; Phosphorous chloride; Phosphine, trichloro-; Fosfortrichloride; Phosphortrichlorid; Trojchlorek fosforu; Phosphorus chloride (PCl3) |
| Category | Inorganic Compounds |
What is Phosphorus trichloride?
Phosphorus trichloride (PCl3) is an inorganic compound that appears as Phosphorus trichloride appears as a colorless or slightly yellow fuming liquid with a pungent and irritating odor resembling that of hydrochloric acid. Causes severe burns to skin, eyes and mucous .... It has a molecular weight of 137.33 g/mol. Its IUPAC name is trichlorophosphane. Boiling point: 169 °F at 760 mmHg (EPA, 1998). Melting point: -170 °F (EPA, 1998).
Formula & Notation
IUPAC Name: trichlorophosphane
Other Names / Synonyms: trichlorophosphane; 7719-12-2; Trichlorophosphine; Phosphorous trichloride; Phosphorous chloride; Phosphine, trichloro-; Fosfortrichloride; Phosphortrichlorid; Trojchlorek fosforu; Phosphorus chloride (PCl3)
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | -170 °F (EPA, 1998) |
| Boiling Point | 169 °F at 760 mmHg (EPA, 1998) |
| Density | 1.574 at 69.8 °F (EPA, 1998) - Denser than water; will sink |
| Molecular Weight | 137.33 |
| Solubility | Reacts with water (NIOSH, 2024) |
| Appearance | Phosphorus trichloride appears as a colorless or slightly yellow fuming liquid with a pungent and irritating odor resembling that of hydrochloric acid. Causes severe burns to skin, eyes and mucous ... |
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 trichloride (PCl3) is an inorganic compound that appears as Phosphorus trichloride appears as a colorless or slightly yellow fuming liquid with a pungent and irritating odor resembling that of hydrochloric acid. Causes severe burns to skin, eyes and mucous .... It has a molecular weight of 137.33 g/mol. Its IUPAC name is trichlorophosphane. Boiling point: 169 °F at 760 mmHg (EPA, 1998). Melting point: -170 °F (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 trichloride is: PCl3