Specification Product Name Potassium Ferrocyanide Appearance Yellow Colored Free Flowing Crystals Physical Properties Molecular Weight: 422.39 Specific Gravity at 17degree C 1.853 Solubility Easily soluble in water 33.7 gm in 100 gm water at 20 Deg. Cen. Bulk Density 0.9 – 1.1 gmcc Chemical Composition Purity as K4[Fe ( CN)6],3h2O 99.0% min. Free Moisture Content 0.50% max. Chloride as Cl 0.30% max. Sulphate as SO4 0.025%.