Date of Award

7-1941

Degree Type

Bachelors Essay

Degree Name

Bachelor of Arts (BA)

Department

Chemistry

First Advisor

Herbert Heinrich

Second Advisor

Donald J. Keegan

Abstract

For many years, it has been known in the plating industry that certain metal baths were affected when materials called ’'addition agents” were added. The addition agents were usually organic and had high molecular weights. Nickel is especially sensitive to the presence of such foreign substances, a very bright deposit being obtained upon the addition of small amounts of gum, gelatin, glue, gum tragacanth, gum arabic and similar materials. These substances have, however, proved unsatisfactory because of difficulty of control and because of decomposition of the agent.

In the past ten years a new type of bright nickel bath has been developed. It differs from the others in that the organic addition agent can be added in almost any amount and good deposits still be obtained. The concentration of the addition substance is then not critical, this being true of the other variables to a limited degree.

Comments

A Thesis submitted to the Faculty of the College of Liberal Arts of Marquette University in Partial Fulfillment of the Requirements for the Degree of Bachelor of Arts, Milwaukee, Wisconsin

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