Hydrated lime used for GREASE,LEMON ACID,POLLUTED WATER TREATMENT,LEATHER,WASTE GAS TREATMENT Hydrated limePhysical and chemical charactersFine white powder,specific gravity 2.24, ... air.Dissolvable in acid and glycerin,difficult to dissolve in water,undissolvable in ethanol.Specification GradeCaO(%)Impurity( % )CO 2 (%)Remains ... : As2O3: 3.7 ppm,HUMIDITY ; 0.36%PURPOSE: River water PH adjustment.