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yongda chemical

Phosphorus trichloride

Product name

Phosphorus trichloride

CAS No.

7719-12-2

Molecular formula

PCL₃

Relative molecular mass

137.33

Properties

A colorless and clear smoky liquid with a relative density of 1.574 (21 ℃), a melting point of -112 ℃, and a boiling point of 75.5 ℃. It is soluble in ether, benzene, chloroform, carbon disulfide, and carbon tetrachloride. Exposed to humid air, it can be hydrolyzed into phosphite and hydrogen chloride, causing white smoke and deterioration. It reacts with oxygen to produce phosphorus oxychloride, and with chlorine to produce phosphorus pentachloride. When in contact with organic matter, it can ignite. Flammable, easily irritating to mucous membranes, corrosive, and toxic.

Use

Mainly used as raw materials for the production of glyphosate, water treatment agents, trichlorfon, dichlorvos, methamidophos, acephate, phosphorus oxychloride, phosphite, triphenyl phosphate, and triphenyl phosphate. Intermediates used in the pharmaceutical industry to produce drugs such as sulfadiazine (S.D) and sulfapentamethoxine (S.N.D). The dye industry serves as a comprehensive agent and catalyst. The annual production capacity is 30000 tons.

Package

Transport by tank car

Quality standard

Index	Superior products	First Grade	Qualified products
Appearance	Colorless transparent or slightly yellow liquid
Phosphorus trichloride content %≥	99.2	98.8	97
Free phosphorus content %≤	0.0008	0.0005	0.01
Boiling range(74.5-77.5℃)(V/V)%≥	96.0	95.0	92.0
(Note: Free phosphorus content and positive phosphorus content can be controlled according to customer requirements)

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