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L(+)/D/DL Tartaric Acid is a naturally occurring organic acid that is commonly used in the food and beverage industry as a flavoring agent, acidulant, and pH control agent. It is also used in various other industries, including pharmaceuticals, cosmetics, and textiles. Tartaric acid has both acidic and antioxidant properties, making it a versatile ingredient in many applications.
| Property | L (+) Tartaric Acid | D Tartaric Acid | DL Tartaric Acid |
|---|---|---|---|
| CAS Number | 87-69-4 | 147-71-7 | 133-37-9 |
| Molecular Formula | C4H6O6 | C4H6O6 | C4H6O6 |
| Appearance | White crystalline powder | White crystalline powder | White crystalline powder |
| Assay | 99.7% min | 99.7% min | 99.0% min |
| Optical Rotation | +12.0° to +13.0° | -12.0° to -13.0° | -0.2° to +0.2° |
| Melting Point | 168-170°C | 169-171°C | 166-170°C |
| Heavy Metals (as Pb) | 10 ppm max | 10 ppm max | 10 ppm max |
| Arsenic (As) | 1 ppm max | 1 ppm max | 2 ppm max |
| Sulfate (SO4) | 0.04% max | 0.04% max | 0.04% max |
| Residue on Ignition | 0.1% max | 0.1% max | 0.1% max |
| Loss on Drying | 0.5% max | 0.5% max | 0.5% max |
| Clarity of Solution | Clear and colorless | Clear and colorless | Clear and colorless |