A natural fruit acid with a clear and neutral fruit acid taste, tartaric acid is the dominant acid in grapes. For this reason, it should also be the preferred acid in making fruit wine. Tartaric acid sold by Osorno originates from Italian wine, and is sold as a crystalline product in 1 kg jars.
- CAS # 87-69-4 (L), 147-71-7 (R), 147-73-9 (meso), 133-37-9 (DL)
- FW 150.09 g/mol
- Solubility 1,394 g/l
- pKa 2.98 (first stage), 4.34 (second stage)