Structural formula: (C₆H₅)₂PCl
Molecular formula: C₁₂H₁₀ClP
Molecular weight: 220.64
CAS No: 1079-66-9


Appearance: Colorless or light yellow liquid
Boiling point: 320℃; 174℃/5mm; 124-126℃/0.6mm
Density: 1.18-1.20
nD20: 1.6350-1.6370
Purity: ≥99% (GC)
Melting point: 14-16 ℃
Flash point: 138℃
Hazard symbol: C
Risk codes: R14-29-34
Safety codes: S8-25-30-36/37/38-45
Transport code: UN 3265
Packaging:200L steel-plastic composite drum or plastic drum, nitrogen protected
Properties:Reacts with water and alcohols.
Applications:An important intermediate widely used in the preparation of organophosphorus flame retardants, organophosphorus pesticides, antioxidants, plasticizers, stabilizers, insecticides, catalysts, high-pressure lubricants, and paint molding agents.