CASR |
: | 6132-04-3 |
Molecular Formula |
: | C6H5Na3O7.2H2O |
Molecular Weight |
: | 294.11 |
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 0.05M sulphuric acid or 0.1M sodium hydroxide is required. |
Arsenic (As): | NMT 2ppm |
Heavy metals: | NMT 10ppm |
Chlorides: | NMT 100ppm |
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% |
pH (5% aq soln): | 7.5-8.5 |
Bacterial endotoxins: | NMT 2.5 EU/gm |
Particle size: | 100% should pass through 40 mesh. |