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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. |
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Phosphorus Pentachloride |
milky white tetragonal crystal, ,with irritative odor, Relative density (water=1)3.60. |
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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 |
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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 |
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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. |
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Phosphorus oxychloride |
Colorless liquid with strong corrosive capacity. Density 1.69; Boiling point 107℃. |
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