High Purity DL-Tartaric Acid CAS 133-37-9 - Food Grade Multifunctional Acidulant for Industrial Applications
DL-Tartaric Acid (CAS 133-37-9) is a racemic mixture of D- and L-tartaric acid isomers, widely used as a natural acidulant, chelating agent, and antioxidant in various industries. This versatile organic acid occurs naturally in many plants, particularly grapes, and is valued for its stability, solubility, and multifunctional properties in industrial applications.
| Property | Specification |
|---|---|
| CAS Number | 133-37-9 |
| Molecular Formula | C₄H₆O₆ |
| Molecular Weight | 150.09 g/mol |
| Appearance | White crystalline powder |
| Purity | ≥99.5% |
| Melting Point | 206-208°C |
| Solubility | Highly soluble in water, soluble in ethanol |
| pH (1% solution) | 2.0-2.5 |
| Loss on Drying | ≤0.5% |
| Residue on Ignition | ≤0.05% |
| Heavy Metals (as Pb) | ≤10 ppm |
| Arsenic (As) | ≤3 ppm |
| Specific Rotation | 0° (racemic mixture) |
| Storage | Keep in cool, dry place away from moisture |
- Acidulant: Provides tart, acidic taste in food and beverages
- Chelating Agent: Binds metal ions to prevent oxidation and discoloration
- Antioxidant: Extends shelf life of products
- pH Regulator: Controls acidity in various formulations
- Emulsifier: Stabilizes oil-water mixtures in food products
- Leavening Agent: Reacts with baking soda to produce carbon dioxide
- Flavor Enhancer: Improves and balances flavor profiles
- Wine making (acid adjustment, tartrate stabilization)
- Soft drinks, fruit juices, and candies
- Baking powders and baked goods
- Jellies, jams, and preserves
- Dairy products and desserts
- Effervescent tablets and powders
- Excipient in medical formulations
- Chiral resolving agent
- Antioxidant in medicinal preparations
- Metal cleaning and polishing compounds
- Textile dyeing and printing
- Photography development
- Electroplating solutions
- Adhesives and sealants
- Skin care products (pH adjuster)
- Hair care formulations
- Oral care products
Our DL-Tartaric Acid is produced through a sophisticated manufacturing process:
- Raw Material Sourcing: Derived from natural sources including grapes and other tartrate-rich materials
- Extraction: Potassium bitartrate is extracted and purified
- Conversion: Chemical conversion to calcium tartrate
- Acidification: Treatment with sulfuric acid to obtain tartaric acid
- Racemization: Conversion to DL-form through controlled processes
- Purification: Multiple crystallization steps for high purity
- Drying & Milling: Controlled drying and particle size optimization
- Quality Control: Rigorous testing against international standards
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