New Indicator for Volumetric Determination of Copper

Virginia Wills, Elizabethtown College
Oscar F. Stambaugh, Elizabethtown College
Zoe G. Proctor, Elizabethtown College


A method for the determination of copper using a new indicator [N,N′-bis- (2-hydroxyethyl)dithio-oxamide] is described. The results are accurate and precise for samples containing from 2 to 70 mg. of copper and the indicator is stable. © 1962, American Chemical Society. All rights reserved.