Description
What Is DL+ Tartaric Acid?
- Chemical identity: A 1:1 mixture of D-tartaric acid and L-tartaric acid (C₄H₆O₆).
- Appearance: White crystalline powder, odorless, with a strong acidic taste.
- Solubility: Highly soluble in water and alcohol.
- pKa values: ~3.0 and ~4.3, making it a strong organic acid.
Key Benefits
- Acidulant: Provides sharp acidity and flavor enhancement in food and beverages.
- Chelating agent: Binds metal ions (e.g., calcium, magnesium, iron), improving stability and preventing discoloration or oxidation.
- Solubility enhancer: Improves dissolution and bioavailability of active ingredients in pharmaceuticals.
- pH control: Maintains optimal pH in formulations, enhancing stability and taste.
- Stabilizer and preservative: Prevents microbial growth and phase separation in emulsions.
Functional Roles
| Function | Description |
| Acidulant | Adds tartness and adjusts pH in food and pharma |
| Chelating agent | Prevents oxidation and discoloration by binding metal ions |
| Solubility enhancer | Improves dissolution of actives in drug and supplement formulations |
| Stabilizer | Maintains emulsion and suspension integrity |
| Preservative | Inhibits microbial growth in acidic environments |
Applications by Industry
- Food & Beverage:
- Soft drinks, wine, candy, baked goods: Flavor enhancement, pH control, and preservation
- Pharmaceuticals:
- Effervescent tablets, syrups, chewables: pH adjustment, solubility enhancement, and taste masking
- Cosmetics:
- Creams, lotions, exfoliants: pH regulation and mild chelation
- Industrial:
- Metal cleaners, descalers, agrochemicals: Chelation and acidification
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