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Topic: qualitative analysis of Zn2+  (Read 2877 times)

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Offline Staccato10

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qualitative analysis of Zn2+
« on: October 14, 2009, 10:38:13 PM »
ZnO22-+Na2S ---->ZnS
what color is the ZnS precipitat?
my ZnO22- is blue(light)
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Offline Borek

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Re: qualitative analysis of Zn2+
« Reply #1 on: October 15, 2009, 03:10:28 AM »
In general: if you look for such information google for MSDS (Material Safety Data Sheet) of the substance, they usually contain information about its appearance.

http://msds.chem.ox.ac.uk/ZI/zinc_sulfide.html
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Offline tushar_enchanter

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Re: qualitative analysis of Zn2+
« Reply #2 on: October 15, 2009, 05:04:18 AM »
it is white to yellow coloured....
  i never saw a blue ppt of zinc
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