Date of Award

Summer 1967

Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Chemistry

First Advisor

Bournique, Raymond A.

Second Advisor

Haworth, Daniel T.

Third Advisor

Hoffman, Norman E.

Abstract

The determination of fluoride is an important analytical problem both in organic and inorganic fluoride has not yet been developed. Many methods have been tried, both of the instrumental and wet varieties; all have had limited success. Of these the gravimetric precipitation of lead chloride fluoride is one of the most common. This type of determination offers advantages in that it is simple, requires no special equipment, and thus can be carried out in any average laboratory. In recent work a method for a new low pH, gravimetric precipitation of lead chloride fluoride has been developed which offers great promise in avoiding many of the difficulties involved in the older procedures. However, not all of the variables which effect the composition of the precipitate have yet been specified nor have the optimum conditions for carrying out this precipitation been completely determined. The purpose of this work is to investigate some of the variables which effect the precipitation of lead chloride fluoride at low pH and to more completely determine the optimum conditions for determining fluoride by this method.

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