... small, uneasy caking,good physical properties, easy application, is a good water-soluble potash.Appearance1) Industrial Grade Potassium Sulphate: colorless ... water is not soluble in alcohol,acetone and carbon disulfide. A bitter salty.2) Agricultural Grade Potassium Sulphate: white or ... and other crops on the application of potassium is best, using a wide range of large amount.PackingN.W.20/25/50kg PP ...