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Copper sulfate
Standard:GOST 19347-99
Production cycle:
- neutralization of acid copper-bearing solutions in oxidizers with the use of copper granules;
- cleaning and filtering the neutral copper-bearing solutions;
- evaporation and crystallization of cleaned solutions;
- centrifugation, spinning and drying to obtain the finished copper sulfate.
Application range:
Copper sulfate is used to produce other compounds, in medicine, food industry, at making mineral paints, and in agriculture as an antiseptic, fungicide, and fertilizer.
Form and packing:
Packaged in plastic or polypropylene bags (50 kg).
The copper sulfate is made according to requirements of GOST 19347 of the brands: ‘A’ and ‘Б’.
Brand ‘A’ (best grade – 99.1%, first grade – 98.0%)
Brand ‘Б’ (best grade – 98.1%, first grade – 96.0%, second grade – 93.1%)
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Description |
Standard for the brand |
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|
‘A’ |
‘Б’ |
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|
Top grade |
First grade |
Top grade |
First grade |
Second grade |
|
|
Mass fraction of copper sulfate: - in terms of CuSO4 x 5H2O, %, no less than |
99,1 |
98,0 |
98,1 |
96,0 |
93,1 |
|
- in terms of Cu, %, no less than |
25,22 |
24,94 |
24,97 |
24,43 |
23,67 |
|
Mass fraction of iron, %, no more than |
0,02 |
0,04 |
0,04 |
0,05 |
0,10 |
|
Mass fraction of free sulfuric acid, %, no more than |
0,20 |
0,25 |
0,20 |
0,25 |
0,25 |
|
Mass fraction of water-insoluble residue, %, no more than |
0,03 |
0,05 |
0,05 |
0,05 |
0,10 |
|
Mass fraction of arsenic, %, no more than |
0,002 |
0,012 |
0,012 |
0,012 |
0,028 |
