Tartaric acid IP 25KG Go Back


: 87-69-4

Molecular Formula

: C4H6O6

Molecular Weight

: 150.09
Description: Colourless crystals or a white or almost white crystalline powder.
Solubility: Very soluble in water, freely soluble in ethanol (95%)
Identification A (By Chemical test): On ignition gradually decomposes giving off an odour resembling that of burnt sugar
Identification B (By Chemical test): Solution should be strongly acidic
Identification C (Tartrate A): An intense violet or purple colour should produced.
Identification C (Tartrate B): A dark blue colour that changes to red when the solution is cooled and poured into water is produced.
Appearance of solution: Solution should be clear, and not more intensely coloured than reference solution YS6.
Specific optical rotation: +12.0° to +12.8°
Arsenic (As): NMT 2ppm
Heavy metals: NMT 10ppm
Chlorides: NMT 125ppm
Sulphate (SO4): NMT 150ppm
Oxalate: No opalescence should produce within 20 minutes
Sulphated ash: NMT 0.1%
Loss on drying: NMT 0.2%
Assay (on dried basis): 99.5% - 101.0%
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