Nickel(II) sulfate, or just nickel sulfate, usually refers to the inorganic compound with the formula NiSO4(H2O)6. This highly soluble blue-coloured saltis a common source of the Ni2+ ion for electroplating.
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Benefits
Nickel is used for increasing iron absorption, preventing iron-poor blood (anemia), and treating weak bones (osteoporosis).
It is found in several foods including nuts, dried beans and peas, soybeans, grains, and chocolate. The body needs nickel, but in very small amounts. Nickel is a common trace element in multiple vitamins.
Caution
Nickel is LIKELY SAFE for most adults when taken by mouth in amounts up to 1 mg/day. Taking more than 1 mg/day is POSSIBLY UNSAFE. Taking amounts slightly above the 1 mg/day level increases the chances of unwanted side effects. High doses are poisonous.
Workers who have been exposed to nickel on the job over an extended period of time can develop allergies, lung disorders, and cancer.
Special Precautions & Warnings:
Pregnancy and breast-feeding: Nickel is LIKELY SAFE in pregnant or breast-feeding adult women when taken by mouth in doses less than the tolerable upper intake level (UL) of 1 mg/day. The safety of higher doses is unknown.
Children: Nickel is LIKELY SAFE in children in daily doses less than the tolerable upper intake level (UL) of 0.2 mg/day in children 1 to 3 years, 0.3 mg/day in children 4 to 8 years, and 0.6 mg/day in children 9 to 13 years. Taking higher doses is POSSIBLY UNSAFE.
Kidney disease: People with kidney disease may not be able to tolerate nickel as well as other people. It’s best to avoid nickel supplements if you have kidney problems.
Nickel allergy: People who are sensitive to nickel, including those with a history of skin rash after contact with nickel-containing jewelry, coins, stainless steel items, surgical implants, or dental appliances, can develop allergic reactions to nickel taken by mouth. These people should not take nickel supplements.
Interactions
Disulfiram (Antabuse) interacts with NICKEL
Disulfiram (Antabuse) might decrease how much nickel your body absorbs, making nickel supplements less effective.
Other names
Nickel(II) sulfate, Atomic number 28, Chlorure de Nickel, Ni, Nickel Chloride, Nickel Sulfate, Nickelous Sulfate, Níquel, Numéro Atomique 28, Oligo-Élément, Sulfate de Nickel, Sulfate Nickeleux, Trace Element
Reference
Source: Wikipedia, https://en.wikipedia.org/wiki/Nickel(II)_sulfate#Production.2C_applications.2C_and_coordination_chemistry