Phosphorus(III) Bromide

[7789-60-8] Br3P (MW 270.67) InChI = 1S/Br3P/c1-4(2)3 InChIKey = IPNPIHIZVLFAFP-UHFFFAOYSA-N (brominating agent for conversion of alcohols to bromides) Alternate Name: phosphorus tribromide. Physical Data: mp 41.5 °C; bp 168–170 °C/725 mmHg; d 2.85 g cm−3. Solubility: sol acetone, CH2Cl2, CS2. Form Supplied in: widely available as liquid and 1.0 M solution in CH2Cl2. Preparative Method: from Bromine and red phosphorus.1 Purification: generally used without purification; can be distilled under N2 at atmospheric pressure. Handling, Storage, and Precautions: corrosive. The colorless, fuming liquid has a very penetrating odor. It has a vapor pressure of 10 mmHg at 48 °C. The reagent is stable if kept dry, but reacts violently with water. It is extremely destructive to tissue of mucous membranes, upper respiratory tract, eyes, and skin. This reagent should only be used in a fume hood.