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acid activity added addition alcohol alloys amount analysis appears calculated carbonate Chem chemical Chemistry chloride coefficient complex components composition compound concentration conductivity constant containing corresponding crystallisation crystals curve decomposition decrease Dependence determined diagram dissolved distribution effect electrical equilibrium erbium ether eutectic excess experimental experiments extraction formation formed given gives groups H₂O heating hydrogen hydroxide increase indicates initial ions isotherm Khim layer lead liquid material measured melting metal method mixture mole molecules NaCl NaOH Nauk Neorg nitrate observed obtained organic oxide phase precipitate prepared presence pressure quantity ratio reaction Received salt separation shown shows sodium solid solid phase solid solutions solubility solution specimens stability structure studied Table temperature ternary thermal thermogram tion values vapour various volume weight yield Zhur