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Phosphorus trichloride

Chemical Name: Phosphorus trichloride

Formula: PCl3

Molecular Weight: 137.3

Available in bulk (Isotank, rail tank car).

Phosphorus Trichloride (PCl3) is a transparent liquid produced from yellow phosphorus and chlorine. The product is an important intermediate for flame retardant additives, specialty fluids & lubricants, pharma intermediates, crop protection products and industrial additives. Due to the product’s hazardous nature, users need to take appropriate precautions upon handling. The product is only available in bulk.

CAS Number


Key Benefits

  • A chemical intermediate
  • A high purity grade product
  • Unique production capability
  • ISO certified production
  • REACH registered

Physical Properties

Boiling point °C
Melting point/range °C
Density 20°C, kg/m³
Approx. 1580
Vapor pressure 20°C and 60°C, kPa
13 and 62


Clear colorless liquid
Assay w/w %
99.8 Min
Color APHA
20 Max
Iron mg/kg
3 Max
Arsenic mg/kg
5 Max

Typical Values:

Assay w/w %
POCl3 w/w %
Iron mg/kg

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