PHOSPHORUS OXYCHLORIDE
CAS No. 10025-87-3

 

PRODUCT FEATURES

Phosphorus Oxy Chloride is used in the manufacture of phosphate esters widely used in plasticizers, hydraulic fluids, lube oil additives, pesticides, and flame retardants. It can be a catalyst, chlorinating agent, and solvent in cryoscopy, intermediate for dyestuffs, extraction agent for uranium, cross-linking agent or doping source.

SPECIFICATION

Phosphorus Oxychloride is a colorless or slightly yellow fuming liquid with a pungent odour. It is toxic and corrosive, soluble in several common organic solvents. Reacts violently with water. Incompatible with strong oxidizing agents, alcohols, bases (including amines). Stable under normal conditions of use and storage


PROPERTIES

Molecular formul POCl3
Molar Mass 153.33 g/mol
Appearance Clear Colorless Fuming Liquid
Assay 99.00% Min
Specific Gravity @ 25oC 1.640 –1.680 g/cm3
Melting Point 1.25 °C (34.25 °F; 274.40 K)
Boiling Point 105.8 °C (222.4 °F; 378.9 K)
Solubility in Water Reacts

APPLICATIONS

MANUFACTURE OF ESTERS

Phosphorus Oxychloride is used in the manufacture of Phosphate Esters. The esters are widely used in plasticizers for PVC, non-flammable hydraulic fluids, lube oil additives, pesticides, and flame retardants. Tri aryl phosphate esters such as Tri Phenyl Phosphate and Tri Cresyl Phosphate are used as flame retardants and plasticizers for PVC. Meanwhile tri alkyl esters such as Tri Butyl Phosphate are used as liquid-liquid extraction solvents.