CASR |
: | 110-17-8 |
Molecular Formula |
: | C4H4O4 |
Molecular Weight |
: | 116.07 |
| Specifications | |
|---|---|
| Description: | White, granules , white crystals or crystalline powder. Metling point about 290°C. |
| Solubility: | Freely soluble in n.n-dimethylformamide, Soluble in methanol and .in ethanol (95%); slightly soluble in water and in ether, dissolve in ammonia TS and in sodium hydroxide TS |
| Identification by IR: | IR spectra of the sample should be concomitant with IR spectra of the corresponding standard. |
| Identification (By Chromatogram): | The retention time of the fumaric acid peak of the sample solution corresponds to that of the standard solution as obtained in the assay. |
| Identification (Chemical test 1): | The solution should show green-blue fluorescence |
| Identification (Chemical test 2): | The color of the test solution should disappears |
| Identification (By UV absorbance test): | The solution should show absorption maxima between 204 nm to 208 nm. |
| Clarity and colour of solution: | The solution shoud clear and colorless |
| Sulfate: | NMT 0.010% |
| Heavy metals: | NMT 10 ppm |
| Arsenic: | NMT 2 ppm |
| Limit of Maleic acid: | NMT 0.1% |
| Limit of Malic acid: | NMT1.5% |
| Water: | NMT 0.5% |
| Residue on ignition: | NMT 0.05% |
| Assay (By Titration,on anhydrous basis): | 99.5%-101.0% |
| Assay (By HPLC, on anhydrous basis): | 98.0%-102% |
