TY - JOUR T1 - The Effect of Malate or Lactate Content on the pH-TA Relationship of Potassium Bitartrate Saturated Alcohol-Water Solutions JF - American Journal of Enology and Viticulture JO - Am J Enol Vitic. SP - 81 LP - 84 DO - 10.5344/ajev.1989.40.2.81 VL - 40 IS - 2 AU - C. W. Nagel AU - I. W. Herrick Y1 - 1989/01/01 UR - http://www.ajevonline.org/content/40/2/81.abstract N2 - To show the effect of organic acid composition on pH and titratable acidity (TA), an algorithm was derived using the dissociation constants of the acids determined in 0%, 10%, and 20% (v/v) ethanol solutions and the solubility product of potassium bitartrate. Using published solubility products for potassium bitartrate solutions and assuming a 0.15% concentration for succinic acid, the effect of variation of the concentration of malic or lactic acid on TA and tartrate and K+ content in ethanol/ water solutions at different pH values could be calculated with the formulas and computer. Tables were constructed showing the predicted malic or lactic acid content in ethanol/water solutions at a particular TA and pH. ER -