Description | Limits |
Appearance | Snow white crystal |
Assays as (COOH)2, 2H2O | 99.6% Min |
Sulphated ash | Max. 200 ppm |
Chloride | Max. 50 ppm |
Sulphate | Max. 400 ppm |
Heavy Metals as Pb | Max. 10 ppm |
Nitrogen Compounds | Max. 10 ppm |
Iron | Max. 10 ppm |
Calcium | Max. 20 ppm |
Magnesium | Max. 20 ppm |