| 1 | Appearance/Description | Colourless translucent crystals. | Colourless, translucent crystals; white or almost white granular to fine crystalline powder. Efflorescent in warm, in dry air.(Note: The product may cause lumps or hardening over the storage). |
| 2 | Solubility | Complies | Very soluble in water, freely soluble in alcohol, very slightly soluble in ether |
| 3 | Identification by Chemical test | Complies | The solution is strongly acidic |
| 4 | Identification (By IR) | Complies | IR spectra of the sample should be concomitant with IR spectra of the corresponding standard |
| 5 | Identification (By chemical test 1) | Complies | A red colour should develop. |
| 6 | Identification (By chemical test 2) | Complies | A white precipitate should formed |
| 7 | Identification (By chemical test 3) | Complies | It gives reaction A of citrates |
| 8 | Identification (By Water) | 8.44% | 7.5% to 9.0% |
| 9 | Identification | Complies | Yields the reactions characteristic of citrates. |
| 10 | Appearance of solution | Complies | The solution is clear and colourless or not more intensely coloured than reference solution YS7, BYS7 or GYS7 |
| 11 | Clarity of solution | Complies | The sample solution shows the same clarity as that of water or its opalescence is not more pronounced that standard suspension A |
| 12 | Colour of solution | Complies | The sample solution is not more intensely colored than water or standard solutions A, B, and C. |
| 13 | Assay (Anhydrous basis) | 100.35% | 99.5% - 100.5% |
| 14 | Residue on ignition /Sulfated ash | 0.058% | NMT 0.1% |
| 15 | Sulfate | Less than 150ppm | NMT 150ppm |
| 16 | Limit of oxalic acid | Less than 360ppm | NMT 360ppm |
| 17 | Readily carbonizable substances | Complies | The color of the acid is not darker than that of a similar volume of reference solution. |
| 18 | Chloride (Cl) | Less than 0.0005% | NMT 0.0005% |
| 19 | Oxalate | Complies | No turbidity should appear. |
| 20 | Calcium | Less than 200 ppm | NMT 200ppm |
| 21 | Iron | Less than 0.001% | NMT 0.001% |
| 22 | Arsenic | Less than 0.0001% | NMT 0.0001% |
| 23 | Barium | Complies | Any opalescence produced should not more intense than that of mixture of 5ml of solution A and 5ml of distilled water |
| 24 | Water | 8.44% | 7.5% to 9.0% |
| 25 | Oxalic acid | Complies | Any pink colour produced is not more intense than that produced by carrying out the test using 0.2mg of oxalic acid dissolved in 4ml of water. |
| 26 | Heavy metals | Less than 10 ppm | NMT 10 ppm |
| 27 | Total aerobic microbial count | Less than 1000 CFU/gm | NMT 1000 CFU/gm |
| 28 | Total Yeast and mold count | Less than 100 CFU/gm | NMT 100 CFU/gm |
| 29 | Escherichia coli | Absent/gm | Should be absent /gm |
| 30 | Pseud. aeruginosa | Absent/gm | Should be absent /gm |
| 31 | Staphylococcus aureus | Absent/gm | Should be absent /gm |
| 32 | Salmonella | Absent/25gm | Should be absent /25gm |
| 33 | Bile-tolerant bacteria | Absent/gm | NMT 100 CFU/gm |