Author: Erhard Grallath

0000000000012971

AUTHOR

Erhard Grallath

Abtrennung und aktivierungsanalytische Bestimmung kleiner Mengen von Chlorid und Bromid

Chlorid- und Bromid-Spuren werden nach Neutronenaktivierung aus wasrigen Losungen mit Triphenylzinnhydroxid in Benzol oder Chloroform ausgeschuttelt. Kleine Bromidmengen werden durch Austauschadsorption an frisch gefalltem AgBr von Chlorid getrennt. 10 μg Cl− konnten neben einem 2,5 fachen Uberschus an Br− mit ausreichender Genauigkeit bestimmt werden.

research product

�ber die Kupferelektrolyse

Die schlechte Reproduzierbarkeit bei der elektrolytischen Kupferabscheidung wird durch schwankende Konzentrationen an Chloridverunreinigungen verursacht. Bromidionen bilden auf der Kathode eine Adsorptionsschicht, die die Abscheidung erleichtert. Harnstoffzusatze sind wirkungslos.

research product

PEPhysical Sciences and Engineering
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