Product Details :
Product Name | : CITRIC ACID ANHYDROUS |
C.A.S. No. | : 77-92-9 |
Molecular Formula | : C6H8O7 |
Molecular Weight | : 192.13 |
SPECIFICATION | IP | BP | USP |
Description | Colorless crystals or white powder, slightly hygroscopic in moist dry air. | White or almost white, crystalline powder, colorless crystals or granules | White Powder |
Solubility | Very soluble in water, freely soluble in ethanol (96 %). | Very soluble in water, freely soluble in ethanol (96 %). | - |
Clarity of Solution | - | - | The Test solution shows the same clarity as that of water. |
Appearance of solution (color)
| 20 % w/v. solution is clear and not more intensely colored than reference solution YS7,BYS7 OR GYS7. | 20 % w/v solution is clear and color less or not more intensely colored than reference solution Y7, BY7 and GY7. | The test solution is not more intensely colored than standard solution A,B, or C, or Water. |
Identification (A) Reaction (B)) By IR Absorption (C) Reaction (D) Reaction (E) Test of water |
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Arsenic | NMT 1ppm. | - | - |
Bacterial end toxins | - | - | The level of bacterial endotoxins is such that the requirement in the relevant dosage form monograph(S)in which citric acid monohydrate is used can be met. |
Sterility | - | - | Meets the requirements for sterility. |
Barium | Any opalescence in the solution is not more intense than that in a mixture of 5 ml of solution and 5 ml of distilled water. | - | - |
Calcium | NMT 200 ppm | - | - |
Heavy metals | NMT 10 ppm |
| NMT 10 ppm |
Iron | NMT 50 ppm | - | - |
Readily carbonisable substance | Any color produced is not more than intense than that of the a mixture of 1.0 ml of CCS and 9.0 ml of FCS. | The solution is not more intensely colored than a mixture of 1 ml of red primary solution and 9 ml of yellow primary solution. | The color of acid is not darker than that of a similar volume of matching fluid K |
Sulphates | NMT 150 ppm | NMT 150 ppm | NMT 150 ppm |
Oxalic acid | Any pink color is produced is not more instance than that produced by carrying out the test using 0.2 mg of oxalic acid dissolve in 4 ml of water. . | NMT 360 ppm | NMT 360 ppm |
Limit of Aluminium | - | NMT 0.2 PPM | The fluorescencence of the test solution does not exceed that of the standard solution (0.2 µg/g) |
Residual Solvents | - | - | Meets the requirements |
Organic Volatile impurities | - | - | Meets the requirements |
Chlorides | NMT 50 ppm | - | - |
Water by KF | NMT 1.0 % | NMT 1.0 % | NMT 1.0 % |
Sulphated ash | NMT 0.1 % | NMT 0.1 % | NMT 0.1 % (residue on ignition) |
Assay | 99.0 % to 101.0 % | 99.5 % - 100.5 % | 99.5 % - 100.5 % |
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