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Copper sulphate CuSO4

 

Copper sulphate is a blue crystalline powder or granulate. It slowly effloresces in air. It can be easily dehydrated to its gray anhydrous form by heating, then changed by to crystals by adding water.

 

It is made by exposing copper or copper oxide to a dilute sulfuric acid and then evaporating and the crude sulphate to purify by recystallization. Many grades are available and huge amounts are manufactured so that less pure grades and inexpensive.

 

It is soluble in water, methanol, slightly soluble in alcohol and-glycerol.

 

Application

Copper sulphate is used in
Agricultural chemicals
Feeds
Germicides - in the textile and leather industries
Pigments
Electric batteries
Reagent in analytical chemistry
Medicine
Wood preservative
For engraving and lithography
Mining and petroleum industries
Synthetic rubber
Steel manufacture
Asphalts manufacture
The anhydrous salt is used as a dehydrating agent
Copper sulfate is employed in ceramics for metallic coloration
Sometimes sprayed as a solution or used as a creamy paste on biscuit for pit firing
 

Technical Specifications

 

Parameters

Unit

Specification

Appearance

 

Blue Coloured Powder & Crystals

Copper as Cu

%

24.50 Min

Nickel as Ni

%

0.03 Max

Iron as Fe

%

0.20 Max

Lead as Pb

%

0.002 Max

Cadmium as Cd

%

0.001 Max

Arsenic as As

%

0.0005 Max

Mercury as Hg

%

0.0005 Max

Insoluble matter in water

%

0.02 Max

pH in 5% Solution

 

3.50 Min

 

Packing

 

Blue Crystals / Powder available in 50 Kg HDPE bags with Liner, for waterproof packing

 

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