Sr. No.Characteristics Assured Values 1.Appearance Colourless crystals or White Powder, Odorless 2.Solubility100 mg soluble in 1 ml of water 3.Alkalinity No Colour is produced on addition of a drop of phenolphthalein solution. 4.Arsenic 0.0001% max 5.Heavy Metals 0.0002 % max 6.Barium 0.001 % max 7.Chloride & Bromide 0.001 % max 8.Iodate 0.0002 % max 9.Sulphate 0.0025 % max 10Loss on drying1.0% w/w max. at 105º C for 3hrs 11Assay99.0% w/w min. of KI on dried basis