... 3.Free sample Potassium aluminum sulfate for water purification agent Molecular Formula:AL2(SQ4)3·XH2OProperties:Iron- ... is 86.5 degrees Celsius, can dissolve in water, acid and alkali, insoluble in alcohol, the ... Uses:Used in the treatment of drinking water and industrial water, high-end paper, and the production ... .5-17%Iron (Fe) content %, max 0.01 about0.005Water insoluble matter %, max 0.15 0. ...