Nickel Sulphate is a chemical compound with formula NiCl2. The salt is yellow, but the more familiar hydrate NiCl2·6H2O is green, which is an excellent water soluble crystalline nickel source for uses compatible with chlorides. Further, the chloride compounds can also conduct electricity, when fused or dissolved in water. The range of Nickel Sulphate, we offer, is known for its high purity & excellent pH level and accurate composition.