铬酸铬

铬酸铬是一种无机化合物,化学式为Cr2(CrO4)3,是Cr3+铬酸盐

铬酸铬
[[File:2 Chrom-3+-Ion 3 Chromation|200px|alt=|]]
英文名
识别
CAS号 24613-89-6  checkY
性质
化学式 Cr2(CrO4)3
451.980(无水)
560.076(六水) g·mol¹
外观 固体
溶解性 很小
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

化学性质

铬酸铬在200℃之前都是稳定的。350℃时开始分解,产物有重铬酸铬三氧化二铬氧气[1]

2 Cr2(CrO4)3 → Cr2(Cr2O7)3 + 2 Cr2O3 + 2 O2

它也可以被氢气还原为Cr2O3

参考文献

  1. NE Fouad, SA Halawy, MA Mohamed, et al.Thermal and spectroscopic studies of chromium chromate hexahydrate – a likely composition for redox surfaces of calcined chromia catalysts 页面存档备份,存于. Thermochimica Acta, 1999. 329(1): 23-29. doi: 10.1016/S0040-6031(98)00658-3
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