Lee, MS Oh, YJ 2024-01-21T05:40:21Z 2024-01-21T05:40:21Z 2021-09-05 2005-01 1345-9678 https://pubs.kist.re.kr/handle/201004/136862 Ionic equilibria in the mixed solution of nickel and cobalt chloride were analyzed by considering the complex formation reactions, the mass and charge balance equations. The activity coefficients of solutes and water activity were calculated by using Bromley equation. Cobalt ion has a strong tendency to form various complexes with chloride ion, such as CoOCl3- and CoCl42, while NiCl+ was the only complex formed between nickel and chloride ion. Distribution of nickel and cobalt species with the compositions and pH values of the solution was obtained front the analysis of ionic equilibria in the mixed chloride solutions. The predicted pH values for NiCl2-CoCl-HCl-NaOH-H2O system agreed well with those measured at 298 K up to ionic strength of 9.53 mol/kg. English JAPAN INST METALS & MATERIALS MODIFIED BROMLEYS METHODOLOGY THERMODYNAMIC PROPERTIES SODIUM-SALTS SEPARATION D2EHPA Chemical equilibria in a mixed solution of nickel and cobalt chloride Article 10.2320/matertrans.46.59 1 MATERIALS TRANSACTIONS, v.46, no.1, pp.59 - 63 MATERIALS TRANSACTIONS 46 1 59 63 scie scopus 000229104800009 2-s2.0-33746394700 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article MODIFIED BROMLEYS METHODOLOGY THERMODYNAMIC PROPERTIES SODIUM-SALTS SEPARATION D2EHPA NiCl2 CoCl2 HCl ionic equilbira Bromley