Measurement of Urea Concentration in Solution with the Optional Ratio of NH₄Cl

Abstract

Algorithm for measurement of urea concentration and ratio of solvent using pH and conductivity in aqueous solution of urea with NH₄Cl was proposed. Temperature characteristics of pH and conductivity in the solution of urea concentration 200, 220, 240 and 260[g urea/100gH₂O] and ratio of solvent 2.0, 2.25, 2.5, 2.75 and 3.0[g H₂O/g NH₄Cl] were investigated. Using their data and algorithm, measurement of urea concentration and ratio of solvent were made with error less than 5%.