| Product Name | D-Tartaric acid |
| CAS NO | 147-71-7 |
| Appearance | White powder |
| Assay | 99.0-101.0% |
| Grade | Pharmaceutical grade/Food grade |
Colorless crystals or white powder without odor,with sour taste,stable in air,compound of equal quantity of dextro-rotatory and levo-rotatory tartaric acid,containing one or two molecule crystalline water and losing water when heated to 100°C,specific gravity 1.697.
Widely used in food, medicine, chemistry and light industry, etc. Mainly used in manufacture tartaric acid salts, such as potassium sodium tartrate, and can be used as beer foaming agent. Also applied in tanning, photo, glass, enamel and telecom materials industries. It's acidity is 1.3 times as citric acid, so especially as acidifying agent for grape juice.
Food Industry: - As acidifier and natural preservative for marmalades, ice cream, jellies, juices, preserves, and beverages. - As effervescent for carbonated water. - As emulsifier and preservative in the bread-making industry and in the preparation of candies and sweets.Oenology: Used as an acidifier. Used in musts and wines to prepare wines that are more balanced from the point of view of taste, the result being an increase in their degree of acidity and a decrease in their pH content. Pharmaceuticals Industry: Used as an excipient for the preparation of effervescent tablets.
Ponstruction Industry: Used in cement, plaster, and plaster of Paris to retard drying and facilitate the handling of these materials.
Cosmetics Industry: Used as a basic component of many natural body crèmes.
| Test Item | First Grade |
| Assay | ≥99.0 % |
| Optical purity (ee value) | ≥99.0 % |
| Description | White crystals or white powder |
| Specific Rotation(20¡æ) | -12.0°C ~ -12.80°C |
| Residue on Ignition | ≤0.1% |
| Oxalate | ≤0.035% |
| Sulphate(SO4) | ≤0.05% |
| Heavy Metals(Pb) | ≤0.001% |
| Loss on Drying | ≤0.5% |
| Melting Point | 164-170°C |
