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 |