Citric Acid Anhydrous Ph.Eur 5KG Go Back


: 77-92-9

Molecular Formula

: C6H8O7

Molecular Weight

: 192.13
Appearance: White or almost white, crystalline powder, colourless crystals or granules.(Note: The product may cause lumps or hardening over the storage).
Solubility: Very soluble in water, freely soluble in ethanol (96%)
Melting point: About 153°C, with decomposition.
Identification A (By Chemical test): The solution should be strongly acidic.
Identification B (By IR): IR spectra of the sample should be concomitant with IR spectra of standard
Identification C (By Chemical test): A red color should develop.
Identification D (By Chemical test): A white precipitate should form.
Identification E (By Water): 1.0% max
Appearance of Solution: The solution should be clear and colorless or not more intensely colored than reference solution Y7, BY7 or GY7.
Readily carbonizable substances: The solution should not be more intensely colored than a mixture of 1ml of red primary solution and 9ml of yellow primary solution.
Oxalic acid: 360ppm max.
Sulfates: 150ppm max
Water: 1.0% max
Sulphated ash: 0.1% max
Assay (Anhydrous basis): 99.5%-100.5%
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