FORMULA: Na2SO4 SPECIFICATION: MAIN CONTENT(Na2SO4): 99.0%MINWATER INSOLUBLE MATTER: 0.05%MAXCALCIUM AND MAGNESIUM (Ca+Mg): 0.15%MAXCHLORIDE (Cl):0.35%MAXMOISTURE CONTENT: 0.20%MAXIRON (Fe: 0.002%MAXWHITENESS: 82%MINPACKED IN P.P WOVEN BAGS OF 50KG NET EACH WITH P.E. LINER INSIDE OR 1MT JUMBO BAG