Date of Award

Spring 1942

Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)




The doctor, geologist, scientific gardener, high school instructor of chemistry, and many others have always avoided qualitative chemical analysis whenever possible. The many efficient an highly developed methods of qualitative analysis are meant only for the trained chemists. To Dr. Feigl, of Vienna University, goes the credit of introducing a new and simplified method of qualitative analysis, known as spot tests. It is a method that promises a minimum of requirements in chemicals, apparatus, training, and time. The purpose of this thesis is to contribute something to the further development of the spot test method of analysis. As far as the author could ascertain, the ammonium salt of aurin tricarboxylic acid is used here for the first time as an indicator for the detection of aluminum by means of spot tests. The detection of aluminum by means of this organic indicator was investigated in the presence of the following cations and their many combinations, chromium, zinc, nickel, cobalt, manganese, ferrous and ferric iron, antimony, arsenic, and tin.