1.100% water soluble and use for irrigation 2.50% K2O,18%S 3.Suit for the plant ... Formula:K2SO4,Molecular Weight: 174.27Appearance: white granularK2O: 50% min,Cl: 0.5%max ,Moisture:0.5%max,size: ... , Molecular Weight: 174.27,Appearance: white powder,K2O: 50% min.Cl: 0.5% max. Sulphur 18% min Mesh 14 ... mesh ,Moisture: 0.2% max.Insoluble matter : 0.1% max. ...