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Product Name | citric acid Anhydrous | ||||||
Standard | BP2013/USP35/FCC8/E330/GB1886.235-2016 | ||||||
CAS | 77-92-9 | ||||||
MF | C6H8O7 | ||||||
MW | 192.1 | ||||||
Appearance | Colorless translucent crystals or white granules, or white crystalline powder | ||||||
Solubility | Soluble in water, alcohol and ether | ||||||
Relative density | 1.542 | ||||||
Melting point | 153 ℃ (water loss) | ||||||
Refractive index | 1.493~1.509 | ||||||
Critical crystallization temperature | 36.6℃ |
Item | Standard | Results |
Characters | White crystalline powder, colorless crystal, or particle | White crystalline granules |
Identification test | Pass the test | Pass the test |
Appearance of Solution | Pass the test | Pass the test |
Assay(Anhydrous Substance) | 99.5-100.5% | 99.7% |
Water | ≦1.0% | 0.10% |
Sulfated Ash | ≦0.1% | <0.1% |
Readily carbonisable Substances | Not Deeper Than standard | Than the standard light |
Heavy Metals (as Pb) | ≦10ppm | <10 |
Sulfates | ≦150ppm | <150ppm |
Oxalic Acid | ≦360ppm | <360 |
Aluminium | ≦0.2ppm | <0.2 |
Bacterial Endotoxins | Pass the test | Pass the test |