CAS NO.: |
87-69-4 (Standard:FCCIV,1996) |
Name: |
L(+)-Tartaric Acid |
Function:
DESCRIPTION |
Colorless or translucent crystals or a white, fine granular, crystalline
powder. It is odorless, has an acid taste, and is stable in air. |
Chemical Name |
L(+)-2,3-dihydroxy butanedioic acid |
Molecular Formula |
C4H6O6 |
Structural Formula |
|
SPECIFICATION
(FCCIV,1996) |
Assay(after drying, as C4H6O6) |
99.7%~100.5% |
Specific Rotation |
+12 ~
+13 |
Heavy Metals (as Pb) |
10mg/kg Max |
Residue on Ignition |
0.05% Max |
Loss on Drying |
0.5% Max |
Arsenic[as As] |
3mg/kg Max |
Sulfate |
Passes test |
Oxalate |
Passes test |
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. |
PACKING |
25KG net in Kratf/Plastic Bag lined with PE bag, 20MT/20FCL (on pallet). |
STORAGE |
Kept airtightly in a light-proof, dry and cool place. |
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