L-Tartaric Acid
CAS Number: 87-69-4
L-Tartaric acid is a naturally occurring dicarboxylic acid found predominantly in grapes, commercially obtained as a by-product of wine making. It provides a sharp, clean sour taste and acts as a leavening acid in baking (paired with baking soda). In winemaking, it adjusts titratable acidity and stabilizes color. Food-grade L(+)-tartaric acid with ≥99.5% purity is supplied as white crystals.
Technical Specifications
| appearance | White crystalline powder |
| purity (%) | ≥99.5 |
| moisture (%) | ≤0.5 |
| heavy metals (ppm) | ≤10 |
| specific rotation [α]D20 | +12.0 to +13.0 |
Applications
- Winemaking acidification and pH adjustment
- Baking powder leavening acid
- Confectionery sour candies and gummies
- Grape-flavored beverage acidulation
- Cream of tartar (potassium bitartrate) precursor
Key Features
- Natural wine-origin acid with distinctive sharp sour character
- Excellent leavening acid for baking powder applications
- Strong chelating and antioxidant synergist properties
- EU E334 approved, GRAS status, FCC and IP grade available
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CAS Number
87-69-4
Category
Food / Beverage AdditivesAvailability
In StockSample
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