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Zinc sulphate

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Description
Application
Properties

Other names

  • Zinc Sulphate Monohydrate
  • Zinc Salt Monohydrate
  • Zinc sulfate
  • Zinc sulphate

Product description

Zinc sulfate is the inorganic compound with the formula ZnSO4 as well as any of three hydrates. It was historically known as “white vitriol”. All of the various forms are colorless solids. The heptahydrate is commonly encountered. It is on the World Health Organization’s List of Essential Medicines, a list of the most important medication needed in a basic health system.

Origin

  • Russia
  • China
  • Germany

Packing

25-50 kg

Medicine

In medicine it is used together with oral rehydration therapy (ORT) and an astringent.

Manufacturing

The hydrates, especially the heptahydrate, are the primary forms used commercially. The main application is as a coagulant in the production of rayon. It is also a precursor to the pigment lithopone.

It is also used as an electrolyte for zinc electroplating, as a mordant in dyeing, and as a preservative for skins and leather.

Other

Zinc sulfate is used to supply zinc in animal feeds, fertilizers, toothpaste, and agricultural sprays. Zinc sulfate, like many zinc compounds, can be used to control moss growth on roofs.

Zinc sulfate can be used to supplement zinc in the brewing process. Zinc is a necessary nutrient for optimal yeast health and performance, although it is not necessary for low-gravity beers as the grains commonly used in brewing already provide adequate zinc. It is a more common practice when pushing yeast to their limit by increasing alcohol content beyond their comfort zone. Before modern stainless steel, brew Kettles, fermenting vessels and after wood, zinc was slowly leached by the use of copper kettles. A modern copper immersion chiller is speculated to provide trace elements of zinc; thus care must be taken when adding supplemental zinc so as not to cause excess. 

Color & Physical Form White Crystalline Powder
Assay 99 - 100.5%
Molecular Wt. 179.45
pH (1 % of Solution) 4 - 5.2
Zn-Content Min. 32%
Chloride NMT 0.002%
Iron NMT 0.003%
Arsenic NMT 0.0005%
Heavy Metals (as Pb) NMT 0.002%
Loss On Drying at 105 degree C NMT 1%
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