CASR |
: | 5949-29-1 |
Molecular Formula |
: | C6H8O7.H2O |
Molecular Weight |
: | 210.14 |
| Specifications | |
|---|---|
| Appearance: | White or almost white, crystalline powder, colourless crystals or granules, efflorescent.(Note: The product may cause lumps or hardening over the storage). |
| Solubility: | Very soluble in water, freely soluble in ethanol (96%) |
| Identification A (By IR): | IR spectra of the sample should be concomitant with IR spectra of the corresponding standadrd |
| Identification B (By Water): | 7.5% to 9.0% |
| Appearance of Solution: | The solution is clear and colourless or not more intensely coloured than reference solution Y7, BY7 or GY7. |
| Readily carbonizable substances: | The solution is not more intensely coloured than a mixture of 1ml of red primary solution and 9ml of yellow primary solution. |
| Oxalic acid: | NMT 360ppm (Calculated as anhydrous oxalic acid) |
| Sulfates: | NMT 150ppm |
| Water: | 7.5% to 9.0% |
| Sulphated ash: | Not more than 0.1% |
| Assay (Anhydrous basis): | 99.5%-100.5% |
