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nickel ii sulfate heptahydrate formula (NiSO4 HEXH2O) is a green coloured sulfate compound that has the chemical formula NiSO4. It is formed by replacing one or both hydrogen atoms with Nickel atoms in a sulphuric acid solution.
It is a common electrolyte in a variety of processes used to treat metals. In addition, it is a precursor to some types of pigments and catalysts.
The salt is usually produced as a by-product of copper refining. It can also be prepared by dissolving nickel oxide or nickel metal in sulfuric acid. The reaction produces a concentrated sulfate solution which is then heated and converted to crystalline nickel sulfate hexahydrate.
This substance is toxic and causes respiratory tract disease, including chronic obstructive pulmonary disease, dyspnoea, cyanosis, and asthma. It is also carcinogenic.
It can cause skin sensitization, especially with prolonged exposure. It can also irritate the eyes and the nose.
A skin sensitivity to this material can result in blistering, rashes, swelling and itching. It can also cause gastrointestinal symptoms, such as vomiting and diarrhoea.
Toxic corrosive fumes from this substance may cause cancer. They are extremely irritating to the eyes and mouth.
The aqueous solution has a pH of 4.5. It is incompatible with strong acids and should not be mixed with alcohol or ether.
Storage and shipping of this material should be in cold, tightly closed containers made of antioxidant materials. Containers should be labelled and kept away from heat, light, flame, and sources of oxygen.