Electroplating with Cadmium.

Progress, Volume II, Issue 11, 2 September 1907, Page 409

Electroplating with Cadmium.

As cadmium can now be had at a reasonable price, it may be of interest. sa} T s a writer in the Deutsche Metalhndustne Z'Atung, to know that there may be obtained an absolutely satisfactory plating therewith by galvanic deposition. Up to a recent date, however, attempts in this direction met with no success. Cadmium is soft, has no caustic action, does not readily dim under the action of vapours containing sulphuretted hydrogen, and its colour is as white as that cf tin, although not so white as that of silver. As compared with the latter metal, however, the galvanic deposit is harder and permits a higher polish. Experiments show that foi this purpose a solution of cadmium carbonate is best, and that the most favourable results may be obtained by the employment of such a solution, to make this latter, a solution of any soluble cadmium salt in water is treated with sodium carbonate.