Determination of Acidity of Triacetin with Automatic Potentiometric Titration

In order to get rid of the disadvantages of conventional acid-base titration in determining the acidity of triacetin, such as inconvenience in endpoint differentiation and high relative standard deviation, automatic potentiometric titration was investigated. The results showed that the recoveries of the method ranged from 99.5% to 103.3% with the relative standard deviation of 0.774% and the limit of quantitation of 0.00175%. It proved that the acidity of triacetin could be rapidly and accurately determined with automatic potentiometric titration.