Potentiometric and conductometric measurements of dicarboxylic acids in non-aqueous solvents


Ozeroglu C. , Sarac A. ".

ASIAN JOURNAL OF CHEMISTRY, vol.18, no.3, pp.1808-1814, 2006 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 3
  • Publication Date: 2006
  • Title of Journal : ASIAN JOURNAL OF CHEMISTRY
  • Page Numbers: pp.1808-1814

Abstract

The potentiometric and conductometric measurements have been reported for the titration of aliphatic and aromatic acids in methanol, 1-propanol, pyridine, methyl ethyl ketone (MEK) and methyl isobutyl ketone (MIBK). Good analytical results were obtained by using tetrabutylammonium hydroxide (TBAH) as a standard titrant. A linear relationship has been found between pK(a) values in water and half neutralization potential (HNP) values measured by potentiometric titration of dicarboxylic acids in the solvents such as methanol, 1-propanol, pyridine, methyl ethyl ketone (MEK) and methyl isobutyl ketone (MIBK). It has been shown that equivalent conductivities of dicarboxylic acids resulted in a decrease with increase in the pK(a) values in the same solvents.