Abstract
The present paper deals with the interaction of Sm(III) with 5- bromo-2-hydroxyacetophenone at different temperatures (30, 40, 50 and 60degreesC). The stability constant of the complex has been studied in 25, 50 and 70% diozane-water mixture. pH-metric data based on Bjerrum Calvin method was employed for the calculation proton-ligand and metal-ligand stability constants. The systems were studied by maintaining M : L ratio 1 :1 and 1 :2.