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Zinc Sulphate Heptahydrate (CAS 7446-20-0)


Zinc Sulphate Heptahydrate (CAS 7446-20-0)

Zinc sulfate is an inorganic compound. It is used as a dietary supplement to treat zinc deficiency and to prevent the condition in those at high risk. Side effects of excess supplementation may include abdominal pain, vomiting, headache, and tiredness.

The most common form includes water of crystallization as the heptahydrate, with the formula ZnSO4•7H2O. It was historically known as “white vitriol”. Zinc sulfate and its hydrates are colourless solids.


Industries: Fertilizers, Horticulture, Pharmaceutical industry, Building chemistry
CAS number: 7446-20-0
WE number: 231-793-3
Index number: 030-006-00-9
Chemical formula: ZnSo4·7H2O
Customs tariff code: 28332920
ADR: UN3077

Other physical properties
pH: ~5,0 – 5,5 (10 %, H2O, 20°C)
Melting / freezing point: 50°C
Boiling point / range: 280°C
Relative density: 1,966 g/cm3 (20°C)

Additional information

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