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AB-014

Determination of nickel by potentiometric titration


Summary

A potentiometric method for the determination of nickel in gold and silver electroplating baths is described. The titration is carried out with KCN. Gold and silver are removed before titration by a reduction process. It is also possible to determine nickel in steel alloys, etc. (see the literature reference).

Ni2+ + 4 KCN + 2NH4+ → (NH4)2[Ni(CN)4] + 4 K+

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Metrohm Nordic ApS

Lyskær 3C. 1. th.
2730 Herlev

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