Electrolytic purification of copper: blister copper (99% copper) is preliminarily made into a thick plate as an anode, pure copper is used as a thin plate as a cathode, and a mixed solution of sulfuric acid (H2SO4) and copper sulfate (CuSO4) is used as an electrolyte. After electrification, copper dissolves from the anode into copper
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(1) Poisoning performance 1. Touch poisoning Long-term exposure to copper sulfate can cause touch dermatitis or eczema on local skin; touching the solution can lead to skin necrosis and rot; splashing into the eye can cause eyelid edema, corneal ulcer and turbidity. 2. Poisoning after ingestion of copper preparations can lead to acute poisoning, which
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Copper sulphate can be contacted every day, in the liquid state, it is blue, and the crystallization is also blue. The difference is that anhydrous copper sulfate is white. When anhydrous copper sulfate is dissolved in water, divalent copper ions are generated, so that it becomes a blue copper sulfate liquid. Sometimes we look at
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