| CAS No.: | 50-70-4 |
|---|---|
| Formula: | C6h14o6 |
| EINECS: | 200-061-5 |
|
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In wine production, tartaric acid plays a vital role in managing acidity levels, which directly influence the taste, quality, and stability of the wine. Grapes naturally contain tartaric acid, and during winemaking, it helps maintain the wine's balance by lowering pH and preventing excessive fermentation. It also stabilizes the wine's color, especially in red wines, by influencing the anthocyanin compounds responsible for pigmentation. Tartaric acid is crucial in preventing the formation of potassium bitartrate crystals, which can appear as "wine diamonds" in bottles, ensuring that the wine remains visually appealing and free of undesirable precipitates.
| Testing Item | Standard | Result |
| Characters | White crystalline powder | White crystalline powder |
| Content (on dry basis) (%) | ≥99.5 | 99.71 |
| Sulphate (SO4) (%) | ≤0.04 | <0.04 |
| Heavy metals (pb) (%) | ≤0.001 | <0.001 |
| Arsenic (As) (%) | ≤0.0002 | <0.0002 |
| Oxidable matter (%) | passed | passed |
| Loss on drying (%) | ≤0.5 | 0.38 |
| Residue on ignition (%) | ≤0.1 | 0.06 |
| Melting point (ºC) | 200~206 | 205 |
| Note: Special requirements of particle size should be negotiated by both suppliers and customers | ||
Polifar group is established in beautiful and economically developed city Nanjing in 2013.
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