Nickel Sulphate Crystals We are offering Nickel Sulphate Crystals which is reputed for its quality and can fulfill many uses in various industries. They are effectively used for Plating, in Industrial Dyes, etc. These products are developed to suit various requirements of our customers and we follow effective policies to satisfy them. punctality is our policy. Specifications of Nickel Sulphate Crystals: Appearance Green Crystalline Solid Assay 96.00 % (min) Clarity 5 % Clear solution pH 4 ~ 5 (5 % solution) Iron 50 PPM (max) Lead 10 PPM (max) Arsenic 10 PPM (max) Potassium 20 PPM (max) Sodium 50 PPM (max) Nitrate 10 PPM (max)