Resumo

PEREZ SAAVEDRA, José de Jesús; RINCON ARCE, Sonia  e  VALENCIA AHEDO, Yazmín Ivett. Potentiometric ultramicrotitration of ammoniacal ferrous sulfate with three different oxidants. Educ. quím [online]. 2010, vol.21, n.1, pp.70-77. ISSN 0187-893X.

A potentiometric Ultramicrotitration (titration of 0.2 mL) of ammoniacal ferrous sulfate with three different oxidants (potassium dichromate, potassium permanganate and ceric sulfate) was compared to the conventional potentiometric titration of the above reagent.This article compares the Ultramicrotitration against the conventional one, uses less than 2% of the reagents, consequently decreasing costs and waste in similar proportions. The optimization of resources, expenses and waste motivates an "ecological conscience" in both instructors and students that may also positively impact current industry standards.

Palavras-chave : ultramicrotitration; potentiometric; education; ecology.

        · texto em Espanhol     · Espanhol ( pdf )