Determination of Total and Temporary Hardness in Waters of Differing Origin and Treatment by EDTA Complexometric Titration: Implications for Soil and Agricultural Water Use
Water hardness, the combined concentration of dissolved calcium and magnesium ions, affects drinking-water taste, soap performance, and the formation of scale in heating equipment. In this study, total hardness was determined by direct complexometric titration with 0.01 M disodium EDTA at pH 10, using Eriochrome Black...