Soluble in carbon disulfide, carbon tetrachloride and benzoyl chloride. Hydrolyzed into phosphoric acid and hydrogen chloride in humid air, producing white smoke and special irritation. When heated to 160 ° C, it began to rise Chemicalbook China, and the right part was decomposed. To 300 ℃ all decompose into chlorine and phosphorus trichloride. The pure product is white, and it is pale yellow because it is partially decomposed into phosphorus trichloride and chlorine after being placed. Used as plasticizer and fragrance fixative, ink solvent, also used in the synthesis of medicine and dye.