Can hydrated calcium chloride be reverted to an anhydrous state?

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Offline Atomic-S

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Can damp calcium chloride be restored to the dehydrated state by heating without it undergoing decomposition, and if so, what is the recommended temperature?
« Last Edit: 18/09/2016 09:39:53 by chris »
 

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Offline chiralSPO

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I think it is possible, but not worth the effort. Anhydrous calcium chloride is pretty cheap, and if you're storing it in a way that it's getting wet, the problem will only continue (and it's gonna get really wet).

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Offline chiralSPO

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a quick google search recommends 200 C overnight, but may take longer depending on degree of hydration. You might have to stir it a few times (but be careful because it's likely very hot and very sticky!)