Malic acid Ph.Eur 5KG Go Back


: 617-48-1

Molecular Formula

: C4H6O5

Molecular Weight

: 134.09
Appearance: White or almost white crystalline powder.
Solubility: Freely soluble in water and in ethanol(96%) and sparingly soluble in acetone.
Identification A (By Melting point): 128.0°C - 132.0°C
Identification B (By IR): IR spectra of the sample should be concomittant with IR spectra of the standard.
Appearance of Solution: Clear and colourless solution
Optical Rotation: -0.10° to + 0.10°
Water insoluble substances: NMT 0.1%
Related substances: Impurity A (Fumaric acid): NMT 1.0 %
Related substances: Impurity B (Maleic acid): NMT 0.05%
Related substances: Any other impurity: NMT 0.1%
Related substances: Total impurity: NMT 0.5%
Water: NMT 2.0%
Sulphated ash: NMT 0.1%
Assay (anhydrous substance): 99.0% to 101.0%
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