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.
<span>En el presente artículo se presenta la modalidad experimental de micropotenciometría analítica como un sistema no sólo de cuantificación, sino también como un elemento motivador para la generación de preguntas por parte del estudiante y, por consiguiente, un motivo de interés para aprender química de una manera diferente.</span>
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