copper sulphate, is the chemical compound with the chemicals formulaCuSO4. This salt exists as a series of compounds that differ in their degree of hydration. The anhydrous form is a pale green or gray-white powder, whereas the pentahydrate (CuSO4·5H2O), the most commonly encountered salt, is bright blue. Copper sulfate exothermically dissolves in water to give the aquo complex [Cu(H2O)6]2+, which has octahedral molecular geometry and is paramagnetic.
CAS No. | 7758-98-7 |
HS Code | 2836999000 |
Grade | industry grade 99% |
Packing | 25kg, 1000kg, 1200kg, woven bag with plastic lining, also can be customized |
Character | It's dark blue triclinic crystal or blue crystalline powder or granule. It smells like nasty metal. It effloresces slowly in dry air. Relative density is 2.284. Above 150ºC, it loses water and form Anhydrous Copper Sulfate which absorbs water easily. It's freely soluble in water and aqueous solution is acidic. PH value of 0.1mol/L aqueous solution is 4.17(15ºC). It's freely soluble in glycerol and dilute ethanol but insoluble in pure ethanol. |
Specification:
Item | Index |
CuSO4.5H2O % ≥ | 98.0 |
As mg/kg ≤ | 25 |
Pb mg/kg ≤ | 125 |
Cd mg/kg ≤ | 25 |
Water insoluble matter % ≤ | 0.2 |
H2SO4 % ≤ | 0.2 |
Specification:
Item | Index |
CuSO4.5H2O %≥ | 98.5 |
Cu %≥ | 25.06 |
Water insoluble matter %≤ | 0.2 |
As %≤ | 0.0004 |
Pb %≤ | 0.001 |
Fineness (800um) %≥ | 95 |
Specification:
Item | Index |
CuSO4·5H2O w/% ≥ | 98.0 |
As w/% ≤ | 0.0005 |
Pb w/% ≤ | 0.001 |
Ca w/% ≤ | 0.0005 |
Fe w/% ≤ | 0.002 |
Co w/% ≤ | 0.0005 |
Ni w% ≤ | 0.0005 |
Zn w% ≤ | 0.001 |
Cl w% ≤ | 0.002 |
Water insoluble matter % ≤ | 0.005 |
pH value (5%, 20 ºC) | 3.5~4.5 |
Specification:
Product Name | Copper sulphate |
Item | Specification |
Copper sulphate (CuSO4·5H2O), w/% ≥ | 98.0 |
As, w/% ≤ | 0.001 |
Pb, w/% ≤ | 0.001 |
Fe, w/% ≤ | 0.002 |
Cl, w/% ≤ | 0.01 |
Water insoluble substance, w% ≤ | 0.02 |
PH (50 g/L solution) | 3.5~4.5 |
1. Inorganic industry for the manufacture of other feed salts such as cuprous chloride, copper chloride, copper pyrophosphate, cuprous oxide, copper acetate, copper carbonate, etc.
2. The dye and pigment industry is used to manufacture copper monoazo dyes such as reactive brilliant blue, reactive violet and so on.
3. The organic industry is used as a catalyst for the synthesis of spices and dye intermediates, and an inhibitor of methyl methacrylate.
4. The coating industry is used as a fungicide for the production of ship bottom antifouling paint. Electroplating industry used as the main salt of full bright acidic copper plating and copper ion additive.
5. Printing and dyeing industry used as mordant and fine dyeing cloth oxygen aid.
6. As a fungicide in agriculture.
7. The aquaculture industry is also used as the main raw material of trace element copper in feed additives.
8. In the production process of preserved eggs and wine, food-grade copper sulfate can be used as a chelating agent and clarifying agent.
9. B solution used in biology for the preparation of Fehling's reagent for the identification of reducing sugars and biuret reagents for the identification of proteins, but usually in a current form.