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D(-)-Tartaric Acid
Byname: Left-hand tartaric Acid, rare tartaric Acid
Scientific name: D (-)-2,3-dihydroxy succinic acid ;D-(-)Tartaric Acid
CAS NO：147-71-7
Molecular formula: C4H6O6
Molecular weight:150.09
Properties: Colorless, without smell, crystal, or white powder, with strong smell, left hand, lustrous; Specific gravity is D204=1.76; It is soluble in water,alcohol,and diethyl ether.
(Superior product) quality index
Content | ≧99.0% |
Specific rotation | -12 — 12.8 |
Drying loss | ≦0.5% |
Sulfate | ≦0.05% |
Heavy metal (as Pb) | ≦0.001% |
Ignition residue | ≦0.1% |
Optical purity | ≧99.0% |
(Superior product) quality index
Content | ≧99.5% |
Specific rotation | -12 — 12.8 |
Drying loss | ≦0.3% |
Sulfate | ≦0.05% |
Heavy metal (as Pb) | ≦0.001% |
Ignition residue | ≦0.1% |
Optical purity | ≧99.7% |
Uses: It is mainly used as sour agent, biochemical reagents, racemic materials splitting agent, medicine splitting agent of beverage, sugar, bread, gelatin. Besides it can also be used as splitting agent, salt and ester of photography, can-making, printing, dyeing, and ceramics.
Packing and storage: Pack it in 25 kg fiber paperboard pail and store it in ventilated, dry places.
Manufacturing
