1. Tartaric acid determination
Polyprotic organic acid – strong base titrations

2. Tartaric Acid Determination
HOOC-CHOH-CHOH-COOH + 2NaOH NaOOC-CHOH-CHOH-COONa + 2H2O
Sample given in the 100 mL volumetric flask is diluted with distilled water to 100 mL. A portion of mL (depending on the volume of the pipette that you have) of diluted sample is transferred to erlenmeyer flask.
Then 1-2 drops of phenolphthalein is added to erlenmeyer flask and the sample is titrated with sodium hydroxide until pink color.
CALCULATIONS
meq tartaric acid = meq NaOH
Vtartaric acid x Ntartaric acid =VNaOH x NNaOH
C (g/L) = Ntartaric acid x Equivalent amount of Tartaric acid
C (g/L) = Ntartaric acid x /2
REFERENCE: Analitik Kimya Pratikleri – Kantitatif Analiz (Ed. Feyyaz ONUR), 2014