Tungsten Pentachloride

Tungsten pentachloride is kind of flash dark green crystal, its physical characteristics as follows: formula: WCI5, molecular weight: 361.2, the relative density: 3.875, melting point: 243 ℃, boiling point: 275.6 ℃, soluble in acetonitrile, benzene, chloroform, carbon disulfide and other organic solvents. Tungsten pentachloride CAS No. is 13470-14-9.
Tungsten pentachloride are sensitive to moisture and water, if placed in the air, which generates green surface film. Hydrolyzed in water will produce blue oxide (W20O58), but in the air can produce oxychloride (WOCl4) by heating. Besides tungsten pentachloride can reacted with amine will easy to generate amino compound. In most polar solvents can decompose, and slightly soluble in carbon disulfide and other non-polar solvents. To produce tungsten pentachloride can use hydrogen reduction tungsten hexachloride at 250 ~ 280 ℃ or use red phosphorus reduction tungsten hexachloride at 380 ~ 400 ℃. Or it can obtain by tungsten tetrachloride disproportionation reaction.

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