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Thread: how does CuSO4.5H2O dehdrate?

  1. #1 how does CuSO4.5H2O dehdrate? 
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    Hi, how does CuSO4.5H2O dehydrate on heationg? my doubt is will it lose all the water molecules in one step or will it take several steps for it? please explain me this concept...


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  3. #2  
    exchemist
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    Quote Originally Posted by chinna View Post
    Hi, how does CuSO4.5H2O dehydrate on heationg? my doubt is will it lose all the water molecules in one step or will it take several steps for it? please explain me this concept...
    Wiki is a wonderful resource. I found this on looking up "copper(II) sulphate:-

    QUOTE

    Copper(II) sulfate pentahydrate decomposes before melting at 150 C (302 F), losing two water molecules at 63 C (145 F), followed by two more at 109 C (228 F) and the final water molecule at 200 C (392 F).[4][5]
    Dehydration proceeds by decomposition of the tetraaquacopper(2+) moiety, two opposing aqua groups are lost to give a diaquacopper(2+) moiety. The second dehydration step occurs with the final two aqua groups are lost. Complete dehydration occurs when the only unbound water molecule is lost.

    UNQUOTE

    So your suspicion is quite right, it loses water in several steps.


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  4. #3  
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    ok thanks a lot....
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