L(+)-Tartaric acid is colorless or translucent crystals, or a white, fine granular, crystaler. It is odorless, has an acid taste, and is stable in air.
L(+)-Tartaric acid is widely used as an acidulant in beverage and other foods. With its optical activity, L(+)-Tartaric acid is used as a chemical resolving agent to resolve DL-amino-butanol, an intermediate for the antitubercular drug. And it is used as a chiral pool to synthesize tartrate derivatives. With its acidity, it is used as a catalyst in the resin finishing of polyester fabric or value regulator in oryzanol production. With its complexation, L(+)-Tartaric acid is used in electroplating, sulfur removal, and acid pickling. It is also used as a complexing agent, food additives screening agent or chelating agent in chemical analysis and rmaceutical inspection, or as resist agent in dyeing. With its reduction, it is used as a reductive agent in manufacturing mirror chemically or imaging agent in togra. It can also complex with metal ion and can be used as a cleaning agent or polishing agent of the metal surface.
| ITEM | STANDARD |
| Appearance | White powder |
| Purity(as c4h6o6) | 99.5 -100.5% |
| Specific rotation(20 ℃) | +12.0 ° — +13.0 ° |
| Heavy metals( as pb) | 10 ppm max |
| Residue on ignition | 0.05% max |
| Arsenic(as as) | 3 ppm max |
| Loss on drying | 0.2% max |
| Chloride | 100 ppm max |
| Sulfate | 150 ppm max |
| Oxalate | 350 ppm max |
| Calcium | 200 ppm max |
| Water solution clarity | Conforms to the STANDARD |
| Color | Conforms to the STANDARD |
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