| S. No | Test | Specification |
| 1 | Description | White to off – white crystalline powder free from any extraneous matter. |
| 2 | Purity ( % w/w ) | NLT 99.00 |
| 3 | pH ( 10 % Aqueous Solution) | 8.00 – 11.00 |
| 4 | Chloride Content (%w/w) | NMT – 0.30 |
| 5 | Iron Content ( as Fe ) (ppm) | Less than 200 |
| 6 | Water Insoluble Matter ( % w/w ) | NMT – 0.25 |
| 7 | Loss on Drying ( % w/w ) | NMT – 0.50 |
