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Filtering by: Creator Armstrong, LaRay George Advisor Freund, Harry Resource Type Dissertation

The determination of titanium, zirconium and hafnium in molybdenum, niobium and tantalum alloys by ion exchange

Creator:

Shakashiro, Mouaffac Hamdy

Abstract:

New alloys containing refractory metals have been developed by the aero-space industry to meet the demand for thermally resistant materials. The chemical analysis of these alloys has been handled successfully by the use of ion exchange. Hydrofluoric acid, either alone or combined with hydrochloric acid, has here-to-fore been used to...

Resource Type:

Dissertation

Full Text:

led to adoption of the Tiron method of Yoe and Armstrong (80). This method is about 20 times more
Coulometric determination of dissolved oxygen

Creator:

Healy, Michael Lyon

Abstract:

Many different aspects of the determination of dissolved oxygen by controlled potential coulometry were investigated to find a means of measuring the oxygen content of natural waters. Rapid sampling techniques, simplicity of operation, and rugged structural features were stressed. Cells were designed to operate by either internal electrolysis or external...

Resource Type:

Dissertation

Full Text:

oxygen in rivers influ- enced by pollution. Armstrong, Heemstra and Kincheloe devised a solid
The nature and stabilities of the fluo-complexes of tantalum

Creator:

Varga, Louis Paul

Resource Type:

Dissertation