Physical Properties
- Appearance: Colorless to pale yellow fuming liquid with a pungent odor.
- Melting Point: -112°C.
- Boiling Point: 76°C.
- Density: 1.57 g/cm³ at 25°C.
- Solubility: Soluble in benzene, carbon tetrachloride, ether, and carbon disulfide.
- Reactivity: Reacts violently with water to form phosphoric acid and hydrochloric acid.
Chemical Properties
- Stability: Stable but sensitive to moisture and light.
- Decomposition: Forms toxic fumes of hydrogen chloride when heated or exposed to moisture.
- Reactivity: Corrosive to metals in the presence of moisture.
Uses
- Organic Synthesis: Used as a chlorinating agent to convert alcohols, aldehydes, and ketones into chlorides.
- Pharmaceuticals: Used as a reagent in the synthesis of pharmaceuticals.
- Pesticides: Used as a raw material for the production of organophosphorus pesticides.
- Other Applications: Used in the production of phosphates and as a catalyst in organic reactions.
Safety Information
- Toxicity: Highly toxic; inhalation, ingestion, and skin contact can cause severe health effects.
- Health Hazards: Causes severe irritation to skin, eyes, and mucous membranes.
- First Aid:
- Skin Contact: Rinse with water and seek medical attention.
- Eye Contact: Rinse with water for at least 15 minutes and seek medical attention.
- Inhalation: Move to fresh air and seek medical attention.
- Ingestion: Do not induce vomiting; seek medical attention.
- Storage: Store in a cool, dry place, away from water and strong oxidizers.
Environmental Information
- Hazard Codes: T+ (Very toxic), C (Corrosive), N (Hazardous to the environment).
- Risk Phrases: R14 (Reacts violently with water), R26/28 (Toxic by inhalation and if swallowed), R35 (Causes severe burns).
- Safety Phrases: S26 (In case of contact with eyes, rinse immediately with plenty of water and seek medical advice), S45 (In case of accident or if you feel unwell, seek medical advice immediately).
Transport Information
- UN Number: UN1809.
- Hazard Class: 8 (Corrosive substances).
- Packing Group: I.
Waste Disposal
- Decompose waste with water to form phosphoric acid and hydrochloric acid. Neutralize with alkali and dilute with water before disposal.
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