used as filler of detergent, the making of sodium sulphide, water glass, or used in papermaking, glass, dye and used as filler, dyeing auxiliary, laxative, antidote, t also can be used in fiber, lether, metallurgy, enamel and soap.Item GB6009-2003I type First grade Result of common product Result of neutral product Result of low chlorine product Na2SO4 ��9.0 99.20 99竊�0 99竊�5 Water insoluble matter % ��.05 0.02 0竊�3 0竊�1 Ca & Mg %(Mg) ��.15 0.02 0竊�2 0竊�2 Chloride %(Cl) ��.35 0.19 0竊�0 0竊�4 (Fe) ��.002 0.001 0竊�01 0竊�01 Moisture % ��.20 0.02 0竊�2 0竊�2 Whiteness % ��0 88 85 83 PH NA NA (1% solution )7.5 (5% solution )7.2
