Meets A.C.S. Specifications |
Assay (Na2SO4) min. 99.0 % |
Insoluble Matter max. 0.01 % |
Loss on Ignition max. 0.5 % |
pH of 5% Solution at 25 C 5.2 - 9.2 |
Chloride (Cl) max. 0.001 % |
Phosphate (PO4) max. 0.001 % |
Calcium (Ca) max. 0.01 % |
Magnesium (Mg) max. 0.005 % |
Potassium (K) max. 0.002 % |
Trace Impurities (in ppm): |
Nitrogen Compounds (as N) max. 5 |
Heavy Metals (as Pb) max. 5 |
Iron (Fe) max. 5 |