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Contact Supplier| Solubility | 2.0 gms soluble in 10.0 ml distilled water |
|---|---|
| Identification | Should give characteristic reactions for Ammonium salts and Hypophosphite salts |
| Iron | Not More than 10 ppm |
| Sulphate | Not more than 0.05% |
| Arsenic | Not more than 2 ppm |
| Phosphite | Not more than 0.05% |
| Calcium | Nil |
| Barium | Nil |
| pH | 3.5-5.5 |
| Water | 35.3 % to 37.0 % |
| Iron | Not more than 0.05 % |
| Zinc | Not more than 5 ppm |
| Copper | Not more than 2 ppm |
| Lead | Not more than 5 ppm |
| Chloride | Not more than 300 ppm |
| Loss on Drying | Not More than 5 % at 105oC |
| Assay as Nickel | 17.5% to 19.5% |
| Assay as Hypophosphite | 42.5% to 44.5% |
| Assay | 97.0 % to 102.0 % |