Method for the preparation of finely divided, electrically condu

Details Method for the preparation of finely divided, electrically condu Method for the preparation of finely divided, electrically condu

1991-10-15

1992-05-26

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

C25B 100

Patent

active

051164680

ABSTRACT:
A method is disclosed for the preparation of finely divided, electrically conductive tin(IV) oxide. In a first step tin(IV) oxalate and/or oxalates of polymeric tin(IV) compounds are obtained by electrolysis, in which the anode consists of tin or a tin alloy which contains a doping metal, and the cathode consists of a metal or graphite. The two electrodes are separated by a diaphragm or an organic membrane which is permeable to hydrogen ions and oxalic acid solution is used as electrolyte. Tin(IV) oxide is prepared in the second step by calcining the oxalates obtained from the solution of tin(IV) oxalate and/or oxalates of polymeric tin(IV) compounds, to which known doping agents have been added in conventional amounts.

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