Colorless or translucent crystals, or a white, fine granular, crystalline powder. It is odorless, has an acid taste, and is stable in air.
|L-2,3-dihydroxy butanedioic acid |
|Molecular Formula ||C4H6O6 |
|Structural Formula || |
|Molecular Weight || |
(Executive Standard: GB 25544-2010,also meets the international standards of FCC,BP,USP ect.)
Assay(after drying, asC4H6O6)
|200ppm Max |
|Lead ||10ppm Max |
| ||10ppm Max |
|Nickel ||1ppm Max |
|Copper ||1ppm Max |
|Zinc ||1ppm Max |
|Residue on Ignition ||1ppm Max |
|Residue on Drying ||0.5% Max |
|Melting Point ||168-170 |
|Oxalate test ||Qualified ,no turbidity forms |
|Sulfate test ||Qualified ,no turbidity forms |
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 tartrate 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.
25KG net in Kratf/Plastic Bag lined with PE bag, 20MT/20FCL (on pallet).
Kept airtightly in a light-proof, dry and cool place.