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Phosphorus trichloride
Phosphorus Pentachloride
Phosphorus pentoxide
Phosphorous acid
Hydrochloric acid
Phosphorus oxychloride
 
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Phosphorus trichloride colorless transparent fume liquid, relative density 1.574, melting point -112 ℃, boiling point 75.5 ℃, can be dissolved in ether, benzene, carbon disulfide and carbon tetrachloride, fume in the moist air , there is a strong irritant, decomposition severely in water and release hydrogen chloride gas, toxic, strong corrosion.
Phosphorus Pentachloride milky white tetragonal crystal, ,with irritative odor, Relative density (water=1)3.60.
Phosphorus pentoxide This product is white powder, specific gravity: 2.39. Can easily absorb the moisture in the air; can dissolve in water and produce a large number of heat, became metaphosphoric acid first and phosphoric acid later. Corrosive to the skin
Phosphorous acid White crystal, easy to absorb moisture and become unstable compound. Melting point 73.6 ℃. Boiling point 200 ℃ (decomposition). In the air, it can be slowly oxidized to phosphoric acid, when heated to 180 ℃ . it is broken down into phosphoric acid and phosphate Hydrogen (extreme toxic). When it is heated in 180-200 ° C (with the presence of oxygen ), it can be decomposed into phosphoric acid and phosphine. Soluble in water and lower alcohols. It has strong hygroscopicity and deliquescence; corrosive matter
Hydrochloric acid Pure hydrochloric acid is a colorless liquid with irritating odor, or yellow color when there are impurities, has a strong corrosive to metals, to animals and plant fiber and human skin. Soluble in water.
Phosphorus oxychloride Colorless liquid with strong corrosive capacity. Density 1.69; Boiling point 107℃.

 

 
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