Re: How remove copper sulfate?
Copper sulfate is a salt that is easily soluble in water.
If it doesn't dissolve, it isn't copper sulfate. It might
be copper oxide or copper carbonate, or a mixture of the
two.
It might also be basic copper sulphate (ie, a double salt of copper
hydroxide and copper sulphate), which will not be readily
water-soluble. But a mild acid should take care of that.
.
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(rec.crafts.jewelry) |
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