Home Uncategorized Copper Sulphate Pentahydrate

Copper Sulphate Pentahydrate

Quality:   GOST 19347-99

Purity:     98% min

Formula:  CuSO4 · 5H2O

HS Code:  2833250000

CAS No:    7758-99-8



Copper sulphate, blue stone, blue vitriol are all common names for pentahydrated cupric sulphate, CuSO45H2O, which is the best known and the most widely used of the copper salts.

Copper sulphate is a very versatile chemical with as extensive a range of uses in industry as it has in agriculture. Its principal employment is in agriculture, and, up to a generation or so ago, about its only uses in industry were as a mordant for dyeing and for electroplating. Today it is being employed in many industrial processes:

  • The synthetic fibre industry has found an application for it in the production of their raw material
  • The metal industry uses large quantities of copper sulphate as an electrolyte in copper refining, for copper coating steel wire prior to wire drawing and in various copper plating processes
  • The mining industry employs it as an activator in the concentration by froth flotation of lead, zinc, cobalt and gold ores
  • The printing trade takes it as an electrolyte in the production of electrotype and as an etching agent for process engraving
  • The paint industry uses it in anti-fouling paints and it plays a part in the colouring of glass.


Technical Parameters

Description Standard Test Result
Mass fraction of copper sulfate:
– in terms of CuSO4 x 5H2O, %, no less than 98.0 99.1
– in terms of Cu, %, no less than 24.94 25.22
Mass fraction of iron, %, no more than 0.04 0.02
Mass fraction of free sulfuric acid, %, no more than 0.25 0.2
Mass fraction of water-insoluble residue, %, no more than 0.05 0.03
Mass fraction of arsenic, %, no more than 0.012 0.002

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