CASR |
: | 6132-04-3 |
Molecular Formula |
: | C6H5Na3O7.2H2O |
Molecular Weight |
: | 294.1 |
| Specifications | |
|---|---|
| Description: | White, granular crystals or a white, crystalline powder. |
| Solubility: | Freely soluble in water, practically insoluble in ethanol (95%) and in ether |
| Identification A (By Chemical test): | Citrate: A dense white precipitate should form. |
| Identification B (By Chemical test): | Sodium: A violate color, white tuns to violet-blue should produce |
| Appearance of Solution: | Solution A is clear and colourless. |
| Acidity or alkalinity: | Not more than 0.5ml of 0.05 M sulphuric acid or 0.1 M sodium hydroxide is required. |
| Arsenic (As): | NMT 2ppm |
| Heavy metals: | NMT 10ppm |
| Chlorides: | NMT 100pm |
| Oxalate: | NMT 300ppm (calculated as anhydrous oxalic acid) |
| Sulphate (SO4): | NMT 150ppm |
| Tartrates: | No crystalline precipitate is formed. |
| Readily carbonizable substances: | The solution is not more intensely coloured than reference solution YS2 or GYS2. |
| Water: | 11.0% -13.0% |
| Assay (Anhydrous basis): | 99.0%-101.0% |
