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TARTARIC ACID
L (+)-tartaric acid is a colorless, odorless solid substance, it crystallizes in the shape of monoclinic prisms. The melting point of ~ 170°C. The solubility of L(+)-tartaric acid in water is grows greatly with increasing temperature.
Molecular formula: C4H6O6
Molecular Weight: 150.087
Structural formula: HO2CCH (OH) CH (OH) CO2H
CAS Number: 87-69-4
| Items |
Value for L(+)-tartaric acid |
| Appearance |
Colourless or semi-translucent crystalline substance |
| The main substance, % |
99.9 |
| Loss on drying, % |
≤ 0.5 |
| Specific rotation of the orientation of linearly polarized light, degrees |
~ +12.0° |
| Density, g/cm3 |
1.76 |
| Arsenic content, mg / kg |
< 2.0 |
Lead content, mg / kg
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< 2.0 |
Application of L(+)-tartaric acid:
- For dry mixes,
- To produce gypsum items and gypsum plaster products,
- In the food industry,
- In analytical chemistry for the detection of aldehydes, sugars,
- Salts of tartaric acid (tartrates) are used in medicine,
- When dyeing fabrics and so on.
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