POTENTIOMETRIC DETERMINATION OF FORMATION CONSTANTS OF GLYCINEHYDROXAMIC ACID WITH PROTON, COPPER(Ⅱ) AND NICKEL(Ⅱ) IN WATER - METHANOL MIXTURES

摘要

Formation constants of glycine hydroxamicacid (2-Amino-N-hydroxy- acetamide) with H~+ , Cu~(2+) and Ni~(2+) were determined in water and water-methanol mixtures at 30℃ at ionic strength of 0.1SM by potentiometric method. The protonation constant and metal-ligand formation constants increased with increase in methanol concentration.