Abstract

At present the chemical literature offers no method for the preparation of diphenylthiocarbazone, or dithizone, sufficiently detailed to guide the average laboratory technician in an economical and successful preparation of this compound. The high price of dithizone and the limited number of dispensers of it emphasize the need of such a method. The original research reported in this thesis was done primarily in an attempt to formulate a satisfactory detailed method for the preparation of dithizone. The suggestions of Emil Fischer were followed and an attampt was made to improve his outline and to note the possible errors so that they might be brought to the attention of the readers of this work. The research work included, in addition, a brief study of the nature of the melting point of dithizone. An attempt was made to compare the cost of producing it by this method with the commercial price of the compound. The first part of this thesis is devoted to a survey of the literature which consists of the history, uses, and reactions of dithizone, a summary of the analytical methods in which it is used, and a summary of the available literature on the preparation of it. The ramaining part is a report of the research done.

Degree

College and Department

Physical and Mathematical Sciences; Chemistry and Biochemistry

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