CASR |
: | 6132-04-3 |
Molecular Formula |
: | C6H5Na3O7.2H2O |
Molecular Weight |
: | 294.11 |
| Specifications | |
|---|---|
| Appearance/Description: | Colorless crystals or white, crystalline powder/ granular crystals, slightly deliquescent in moist air. |
| Solubility: | Freely soluble in water & very soluble in boiling water. Insoluble in alcohol & Practically insoluble in ethanol (96%) |
| Identification (Citrate): | Solution should produce violet colour turning to violet blue |
| Identification (Citrate ): | A light red color should produce |
| Identification(Sodium): | A dense white precipitate should form. |
| Identification (reaction upon ignition): | Upon ignition, it should yield an alkaline residue that effervesces when treated with 3N hydrochloric acid |
| Appearance of Solution: | Clear and colourless solution |
| Acidity or alkalinity: | Not more than 0.2ml of 0.1M sodium hydroxide is required to change the colour of the indicator. |
| Alkalinity: | No pink colour is produced by 1 drop of phenolphthalein. |
| Readily carbonizable substances: | The solution is not more intensely coloured than reference solution Y2 or GY2. |
| Chlorides: | 50ppm max |
| Oxalate: | 300ppm max |
| Sulphate (SO4): | 150ppm max |
| Water (By KF): | 11.0%-13.0% |
| Water (At 180°C for 18h): | 10.0% -13.0% |
| Assay (Anhydrous basis): | 99.0%-101.0% |
| Assay (on Anhydrous basis): | 99.0%- 100.5% |
| Tartrates: | No crystalline precipitate is formed. |
