Journal of Chemical and Engineering Data, Vol.56, No.6, 2964-2970, 2011
Potentiometric Titration Study of the Temperature and Ionic Strength Dependence of the Acidity Constants of Nicotinic Acid (Niacin)
The influence of temperature (T) and ionic strength (I-m) on the stoichiometric (molality scale) acidity constants of nicotinic acid in aqueous solution was investigated by potentiometry (H+-glass electrode). The background salt used was potassium chloride, and the temperature and ionic strength ranges covered were 283.15 K < T < 318.15 K and 0.05 mol center dot kg(-1)