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| English name | Phosphorus Trichloride | ||||
| Molecular formula | PCl3 | ||||
| Molecular weight | 137.33 | ||||
| CAS No. | 7719-12-2 | ||||
| product quality | Indicator name | Premium | First grade | Qualified product | |
| Exterior | Colorless, transparent or slightly yellow liquid | ||||
| content，% | ≥99.0 | ≥98.0 | ≥97.0 | ||
| Free phosphorus，% | ≤0.001 | ≤0.005 | ≤0.01 | ||
| Boiling range(74.5-77.5°Cv/v) | ≥96.0 | ≥95.0 | ≥94.0 | ||
| Physical and chemical properties | Colorless and transparent fuming liquid, relative density 1.574, melting point -112°C, boiling point 75.5°C, soluble in ether, benzene, carbon disulfide and carbon tetrachloride. When exposed to moist air, it can be hydrolyzed into phosphorous acid and hydrogen chloride, producing white smoke and deteriorating. It decomposes violently in contact with water and releases hydrogen chloride gas. It reacts with oxygen to produce phosphorus oxychloride, and reacts with chlorine to produce phosphorus pentachloride. It will catch fire when it comes in contact with organic matter. It is flammable, easy to irritate the mucous membrane, corrosive and toxic. | ||||
| Use | Mainly used in the manufacture of trichlorfon, methamidophos and acephate, phosphorous oxychloride, phosphorous acid, triphenyl phosphate and triphenol phosphate, as well as the raw materials of organophosphorus pesticides such as Dafenjing. The pharmaceutical industry is used to produce sulfadiazine (S, D) and sulfapentamethoxine (S, M, D). In the dye industry, it is used as a condensation agent and catalyst for the production of color phenols. | ||||
| Package | Packed in dry plastic drums, or transported by tanker. This product is a first-class inorganic acid corrosive product, and the dangerous number is 81041. It should be shipped in accordance with the dangerous goods transportation rules. | ||||
