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Topic: Heating zinc sulphate  (Read 14391 times)

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Michael

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Heating zinc sulphate
« on: December 26, 2004, 08:32:32 PM »
Hi, i need some help on this question....

What are the effects of heating zinc sulphate.

Form what i have researched i could only gather that zinc oxide is produced.

I need an equation and to know if any colour changes take place.

Thanks in advance.
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Offline Donaldson Tan

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Re:Heating zinc sulphate
« Reply #1 on: December 26, 2004, 08:57:36 PM »
2ZnSO4 => 2ZnO + 2SO2 + O2

Zinc Oxide produced is yellow when hot, white when cool. The colour change is due to different electronic configuration of the zinc ion at different temperature.
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Offline AWK

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Re:Heating zinc sulphate
« Reply #2 on: December 27, 2004, 02:53:25 AM »
Zinc sulfate thermally decomposes in the range 600 to 740 C. Depending on temperature some amounts of SO3 can be expected.
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