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Description
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Colourless, transparent crystals or a white , crystalline powder, efflorescent
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Solubility
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Very soluble in water; practically insoluble in ethanol (95%)
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Identification
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The solution A should gives the reactions of zinc salts and sulphates
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Appearance of solution
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Solution A should be clear and colorless
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pH
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4.4 – 5.6
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Arsenic
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NMT 10 ppm
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Iron
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NMT 100 ppm
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Chloride (Cl)
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NMT 250 ppm
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Assay (as ZnSO4.7H2O)
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99.0% to 104.0%
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