L-Tartaric Acid CAS 87-69-4

Product Name:       L(+)Tartaric Acid

Identification

Scientific Name     (2S,3S)-2,3-dihydroxysuccinic acid

Molecular Formula C₄H₆O₆

Molecular Weight  150.1

CAS Number          87-69-4

Properties

Appearance            Colorless or white crystalline. Odorless, acidic taste. Easily soluble in water and alcohol, insoluble in chloroform.

Melting Point          200-206°C

Density            1.69-1.76

Solubility in water   soluble

Specification

Item	Specs
Content	99.7-100.5
Appearance	White   crystal powder
Specific   rotation[a]D20℃	+12.0°--   +13.0°
Heavy   metals(on Pb), mg/kg	2 max
Calcium   (Ca)	0.02   max
Residue on   ignition	0.05   max
Loss on   drying	0.5   max
Oxalate(C2O4)	0.035   max
Sulphate(SO4)	0.015   max
Arsenic (as As), mg/kg	2 max
Chloride   (Cl)	0.01   max
Solubleness	Pass   test

Application

L(+)-Tartaric acid is widely used as acidulates 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. 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 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 and Storage

Packing   In 25kgs net kraft bag.

Storage    Keep tightly closed.

Safety Information

Non-hazardous for air, sea and road freight.