ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Determination of polysubstituted complexes by the method of potentiometric surfaces

A. Swinarski and J. Wojtczakowa

Nikolaus-Kopernikus Univ., Torun, Polland

Abstract:   The Cu²⁺-NH₃^-C₂O₄^2- system was studied with the Cu and glass electrode. Titrn. of pure Cu²⁺ with NH₃ soln. gave a standard curve showing the dependence of pCu and pH on the quantity of NH₃ added. A potentiometric titrn. curve was obtained by adding successive amts. of C₂O₄^2- in NH₃ soln. to the Cu²⁺. The uncomplexed components were detd. from the potentiometric surface. The 2 mixed complexes [Cu(C₂O₄)(NH₃)₂] and [Cu(C₂O₄)₂NH₃] were found from the 2 max. of the curve.

Full paper in Portable Document Format: 193a209.pdf (in German)

Chemical Papers 19 (3) 209–214 (1965)