darkflame89
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Calamine--ZnCO3
Saw a bottle of calamine at my pharmacy. I checked up my books and they said it was ZnCO3. I need to obtain it pure but the bottle contains menthol
too. Anyway to get rid off it??
Incidentally, is there anyway to recover zinc metal from zinc carbonate?
Ignis ubique latet, naturam amplectitur omnem.
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I am a fish
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In my experience, medicinal products are generally poor and expensive sources of laboratory chemicals.
Zinc oxide is cheaply and readily available from pottery suppliers. If you particularly want to make the carbonate:
1. Dissolve an excess of zinc oxide in sulphuric, hydrochloric or nitric acid.
2. Filter out the excess zinc oxide, to give a pure solution of the zinc salt corresponding to the acid used.
3. Add sodium carbonate solution, to precipitate out zinc carbonate.
A brief overview of methods to extract zinc from its compounds can be seen here:
http://www.webelements.com/webelements/scholar/elements/zinc...
A readily available source of zinc metal is the casing of zinc-carbon batteries.
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Organikum
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zinc-oxide is even more readily available at paintstores - zinc-white as pigment for white paint.
For the rest see what the fish wrote - he is absolute right.
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darkflame89
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Unfortunately, where i live do not have such luxury. But I see the point about zinc from batteries. Can i just peel of the outer layer and react with
it?
Ignis ubique latet, naturam amplectitur omnem.
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Saerynide
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I thought the can on the Zn/C batteries was a zinc alloy?
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I am a fish
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Technically yes, but the zinc content is usually over 99%.
1f `/0u (4|\\| |234d 7|-|15, `/0u |234||`/ |\\|33d 70 937 0u7 /\\/\\0|23.
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