Tartaric acid(CASNO.:147-71-7):
Test Item
First Grade
Assay
≥99.0 %
Optical purity (ee value)
≥99.7 %
Description
White crystals or white powder
Specific Rotation(20??)
-12.0°C ~ -12.80°C
Residue on Ignition
≤0.1%
Oxalate
≤0.035%
Sulphate(SO4)
≤0.05%
Heavy Metals(Pb)
≤0.001%
Loss on Drying
≤0.5%
Melting Point
164-170°C
Molecular formula:HOOC(CHOH)2COOH C4H6O6
Molecular Weight:150.09
Property: Colorless, smelly crystal or white powder, with strong flavour and left optical activity, specific gravity d204=1.76, dissolved in water and alcohol, less dissolved in aether.
Use: Mainly used as acidity regulations, biochemical reagent, resolving agent on racemic and pharmaceutical resolving agent in beverage, sugar, bread and gelatin. Also used in photography, canning, printing and dyeing, ceramics, resolving agent on manufacturing,
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