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单词 Cobaltous chloride
释义

Cobaltous chloride

中文百科

氯化钴 Cobalt(II) chloride

(重定向自Cobaltous chloride)

氯化亚钴,常称氯化钴二氯化钴氯化钴(Ⅱ),化学式为CoCl2;无水的氯化亚钴蓝色,水合物众多,常见者为红紫色六水物CoCl2·6H2O;无水物具吸湿性,水合物具潮解性。

固态六水物中,四个水分子是配位水,两个水分子是结晶水,即[CoCl2(H2O)4]·2H2O。有水物溶于水和乙醇。

在欧盟的「关于化学品注册、评估、许可和限制法案」(REACH)中,已将氯化亚钴列为高度关注物质(SVHC)。

英语百科

Cobalt(II) chloride 氯化钴

(重定向自Cobaltous chloride)
The structure of a cobalt(IV) coordination complex with the norbornyl anion.

Cobalt(II) chloride is an inorganic compound of cobalt and chlorine, with the formula CoCl2. It is usually supplied as the hexahydrate CoCl2•6H2O, which is one of the most commonly used cobalt compounds in the lab.

The hexahydrate is deep purple in color, whereas the anhydrous form is sky blue. A blend would be mauve. Because of the ease of the hydration/dehydration reaction, and the resulting color change, cobalt chloride is used as an indicator for water in desiccants.

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更新时间:2025/6/18 23:18:39