Citric acid is a weak organic acid with the formula C6H8O7. It is a natural preservative/conservative which occurs naturally in citrus fruits and is also used to add an acidic or sour taste to foods and drinks. In biochemistry, the conjugate base of citric acid, citrate, is important as an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms. It consists of 3 carboxyl (R-COOH) groups.
FOOD GRADE: FCC6,E330
FOOD GRADE: FCC6, E330
Conforms to BP2009 . USP32
Minimum Assay: 99.5-100.5%
Molecular Formula: C6H8O7
Molecular Weight: 192.14 g/mol
Solubility in water (% weight): Soluble in water
Melting Point: 153-159 C
Flash Point: 173.9 C
Boiling Point: 175 C
Density (g/cm3): 1.665
Identity (IR Spectrum): Passes Test
Insoluble matter in H2O: <0.005%
Iron (Fe): Sulphate (SO4): <150ppm
Oxalate (C2O4): <100ppm
Heavy metals (as Pb): <5ppm
Lead (Pb): <0.5ppm
Arsenic (As): <1ppm
Mercury (Hg): <1ppm
Water (Karl Fischer): 0.5%
Sulphated ash (600 C): 0.05%
Substances carbonisable by hot H2SO4: Passes test
Organic Volatile Impurities: Passes Test
Calcium (Ca): <75ppm
Meets Food Chemical Codex (FCC) & of Commission Directive 2008/84/EC.
Hazard Phrases: Causes serious eye irritation.
Prec Phrases: Wear protective gloves/protective clothing/eye protection/face protection. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. If eye irritation persists: Get medical advice/attention.
Cas No: 77-92-9
Einecs No: 201-069-1