L(+)-Tartaric acid

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Uses: L(+)-tartaric acid is widely used as a sour agent in beverages and other foods, used in wine, soft drinks, candy, bread, certain gelatinous sweets. Utilizing its optical activity, it is used as a chemical resolution agent to make the intermediate DL of anti-tuberculosis drugs. The separation of aminobutanol; it can also be used as a chiral raw material for the synthesis of tartaric acid derivatives; it can be used as a catalyst for polyester fabric resin finishing and a pH regulator for oryzanol production by using its acidity; it can be used for electroplating, Complexing agent, masking agent, chelating agent, printing and dyeing resist in desulfurization, pickling and chemical analysis, medical inspection; use its reduced form as a reducing agent in chemical mirror making. Photographic developer. It can also complex with a variety of metal ions, and can be used as a cleaning agent and polishing agent for metal surfaces.

Packing: 25KG composite paper bag, lined with polyethylene bag, 20' container can hold 20 tons (large pallet).

Storage: Keep away from light, , and store in a cool, dry and airtight place.

Specification

Index name	BP98 British Pharmacopoeia	FCC(IV)
Transparency and Chromatic Aberration	qualified	-
Specific rotation [a]b25ºC	+12º - +12.8º	+12º - +12.8º
Content (on dry basis) ≤ %	99.5-101.0	99.7-100.5
Loss on drying % ≤	0.2	0.5
Heavy metal (calculated as Pb) ≤ %	0.001	0.001
Sulfated ash % ≤	0.1	0.05
Oxalate % ≤	0.035	qualified
Sulfate % ≤	0.015	qualified
Chloride (Cl) % ≤	0.10	-
Calcium (Ca) % ≤	0.02	-