Sulphate of Zinc Enlarge
Feb 1 1810 published by Js Sowerby London.
British Mineralogy
Zincum sulphatum

Sulphate of Zinc

  • Class 3. Metals.
  • Order 2. Oxygenized Compounds.
  • Gen. 4. Zinc.
  • Spec. 2. Sulphate.
  • Div. 1. Crystallized.
  • Spec. Char. Oxide of Zinc combined with Sulphuric Acid.
  • Syn.
    • Vitriol of Zinc. Kirw. 2. 23.
    • Zinc sulphaté. Haüy, 4. 180.

Sulphate of Zinc is found at Holywell in Flintshire; and the specimens which I have were brought from thence. It is formed on a red earthy Oxide of Iron, and is chiefly distinguished from the Sulphate of Iron, or Copper, by its whiteness, being commonly called White Vitriol and even White Copperas. I have not seen it crystallized in its native state. It is slightly laminous in its fracture, and is formed rather irregularly in holes or foramina. It is soluble in twice its weight of cold water, and has a strong styptic taste. When pure it consists of

Oxide of Zinc 40.
Water 39.5
Sulphuric Acid 20.5
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