Date of Award

6-1932

Document Type

Union College Only

Degree Name

Bachelor of Science

Department

Chemistry

Language

English

Abstract

For some forty years the explanation of Liesegongs rings has haunted the minds of colloid chemists. From observing the formation of various insoluble precipitate in different media, numerous theories were fabricated as will be recounted in the historical portion of this thesis. All of the theories were formed from external observation only. Some investigators used supersaturation, some adsorption, and others peptization to explain the phenomena. But this was at best an inductive guess. In trying to get inside the gel to observe what went on, it was decided to use the probing electrode. With the electrode it was possible to get actually inside the gel and find out what happened. The results obtained from the study are so interesting as to open up a new field in the investigation of the Liesegong phenomenon.

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