CASR |
: | 6132-04-3 |
Molecular Formula |
: | C6H5Na3O7.2H2O |
Molecular Weight |
: | 294.1 |
| Specifications | |
|---|---|
| Appearance: | White or almost white, crystalline powder or white or almost white, granular crystals, slightly deliquescent in moist air. |
| Solubility: | Freely soluble in water, practically insoluble in ethanol (96%) |
| Identification A (Citrate): | Solution should produce violet colour turning to violet blue |
| Identification B (Test for Sodium): | A dense white precipitate should form. |
| Appearance of Solution: | Clear and colourless solution |
| Acidity or alkalinity: | Not more than 0.2ml of 0.1 M hydrochloric acid or 0.1 M sodium hydroxide is required to change the colour of the indicator. |
| Readily carbonizable substances: | The solution is not more intensely coloured than reference solution Y2 or GY2. |
| Chlorides: | NMT 50ppm |
| Oxalate: | NMT 300ppm |
| Sulphate (SO4): | NMT 150ppm |
| Water: | 11.0% -13.0% |
| Assay (Anhydrous basis): | 99.0%-101.0% |
