Uso de mistura de solventes para a determinação de molibdenio com tiocianato : estudo das condições de extração liquido-liquido por Fase Unica no sistema agua-etanol-cloroformio com x-benzoinoxima

AUTOR(ES)
DATA DE PUBLICAÇÃO

1995

RESUMO

The colar intensity developed by the reaction between molybdenum and thiocyanate ions in homogeneous ternary systems of solvents was evaluated by Mixture Experimental Designs. These studies, involving the ternary sistems water-ethanol-chloroform, water-ethanol-acetone and water-acetone-chlorofom, were performed by measuring the maximum Absorbance (response) observed for each homogeneous solution tested. Thus, a reaction medium composed by H2O (13% m/m), CHCl3 (42% m/m) and CH3CH2OH (45% m/m) was chosen for the determination of molybdenum by the thiocyanate method. (...continue)

ASSUNTO(S)

extração (quimica) extração por solventes

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