Gravimetric determination of copper(II) with p-aminobenzoic acid.
A method has been developed for the gravimetric determination of 20-100 mg of copper(II) with p-aminobenzoic acid. Ag, Hg(II), Pb, Al, Fe(II), Bi, Sb(III) and Sn(II) interfere, but Zn, Co(II), Ni and Cd do not. The precipitate can be weighed after drying at 80-100 degrees , or can be ignited to copper(II) oxide at temperatures above 400 degrees , and weighed in this form.
Erdey
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Institute for General and Analytical Chemistry Technical University of Budapest Budapest XI, Hungary.
Marik-Korda
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Liptay
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