In aqueous solutions,Cu(Ⅱ) precipitates with ammonium thiocyanate and tetradecylpyridinium chloride.In the presence of sodium chloride,the precipitate is floated.It shows that Cu(Ⅱ) can be completely separated from ...In aqueous solutions,Cu(Ⅱ) precipitates with ammonium thiocyanate and tetradecylpyridinium chloride.In the presence of sodium chloride,the precipitate is floated.It shows that Cu(Ⅱ) can be completely separated from Fe(Ⅲ),Co(Ⅱ),Ni(Ⅱ),Mn(Ⅱ) and Cd(Ⅱ) by floatation.Besides has the advantages of inorganic solvent floatation,the method is non toxic,simple,rapid and economical.展开更多
文摘In aqueous solutions,Cu(Ⅱ) precipitates with ammonium thiocyanate and tetradecylpyridinium chloride.In the presence of sodium chloride,the precipitate is floated.It shows that Cu(Ⅱ) can be completely separated from Fe(Ⅲ),Co(Ⅱ),Ni(Ⅱ),Mn(Ⅱ) and Cd(Ⅱ) by floatation.Besides has the advantages of inorganic solvent floatation,the method is non toxic,simple,rapid and economical.