Chemistry and Chemical Biology ETDs

Publication Date

Spring 5-26-1950


Treadwell states in his text, Analytical Chemistry, Volume II, that "the only method for examining cyanates consists in determining the amount of carbon and nitrogen present by combustion." A review of the available literature shows that, although this is not literally true, a procedure for this quantitative determination of small amounts of cyanates in the presence of interfering substances is lacking.

A survey of the literature yielded few references for instrumental methods for the quantitative determination of cyanates. Ripan-Tilici published a method for the determination of cyanates poteniometrically, but attempts to duplicate her work have failed. Madame Tilici, in a subsequent publication, determined cyanates in the presence of cyanides by means of a conductometric titeration. Work done by Carlisle, with the polarograph, indicated that the cyanate ion had an ill-defined half-wave but the presence of the wave was not clearly established. Bailey and Bailey published a colorimetric method for the determination of cyanates but the method was not applicable in the presence of a number of anions.

The cyanate ion is known to form in a number of complexes with metallic cations and aminos, many of which are colored and are in insoluble water. A colorimetric method utilizing one of these colored cyanate complexes offered a means of approach to the problem.



Document Type


Degree Name


Level of Degree


Department Name

Department of Chemistry and Chemical Biology

First Committee Member (Chair)

Ernest Lynne Martin

Second Committee Member

Douglas G. H.

Third Committee Member

Milton Kahn

Fourth Committee Member

Sherman A. Wingard

Fifth Committee Member

J.L. Riberman