L(+)-Tartaric Acid
CAS NO.:87-69-4
Standard:FCCIV，1996
DESCRIPTION
 Colorless or translucent crystals, or a white, fine to granular, crystalline powder. It is odorless, has an acid taste, and is stable in air.
Chemical Name L(+)-2,3-dihydrooxy butanedioic acid
Molecular Formula C4H6O6
Structural Formula
Molecular Weight 150.09

SPECIFICATION
(FCCIV,1996)

Assay(after drying, as C4H6O6)

 99.7%～100.5%
Specific Rotation +12.0° ～+13.0°
Heavy Metals (as Pb) 10mg/kg Max
Residue on Ignition 0.05%Max
Loss on Drying 0.5% Max
Oxalate Passes test
Sulfate Passes test
Arsenic (as As) 3mg/kg Max

MAIN FUNCTION AND PURPOSE

L(+)-Tartaric acid is widely used as acidulant in beverage,and other foods, such as soft drinks, wine, candy, bread and some colloidal sweetmeats. With its optical activity, L(+)-Tartaric acid is used as chemical resolving agent to resolve DL-amino-butanol, an intermediate for antitubercular drug. And it is used as chiral pool to synthesize tartarate derivatives. With its acidity, it is used as catalyst in the resin finishing of polyester fabric or pH 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 complexing agent, screening agent or chelating agent in chemical analysis and pharmaceutical inspection, or as resist agent in dyeing. With its reduction, it is used as reductive agent in manufacturing mirror chemically or imaging agent in photography. It can also complex with metal ion and can be used as cleaning agent or polishing agent of metal surface.
PACKING
 25KG net in Kratf/Plastic Bag lined with PE bag, 20MT/20'FCL (on pallet).
STORAGE
 Kept airtightly in a light-proof, dry and cool place.