Masters Theses

Abstract

Gallium dissolved very slowly in dilute acids like HC1, H2SO4and HCIO4. The rate was substantially accelerated if the metal was connected with a platinum electrode in the same solution. From the volume of the hydrogen developed the trivalency of gallium ions going into solution was calculated. This same ionic charge was obtained from coulometric measurements using gallium-amalgam as the anode. The initial ionic charge of aluminum dissolving from an aluminum amalgam anode was evidenced as being plus three by coulometric measurements.

Gallium and aluminum anodes were found to partially disintegrate while the current flowed. A gallium anode disintegrated by expelling finely divided metal particles, and an aluminum anode by a film-controlled mechanism. Anodic disintegration explains the deviation from Faraday's law and the presence of the small metal particles explains the reducing ability of the electrolyte. The postulation of gallium or aluminum ions of lower valency is not necessary, and their presence cannot be proven"-- Abstract, p. 1

Advisor(s)

Straumanis, Martin E., 1898-1973

Committee Member(s)

Wolf, Robert V.,1929-1999
Antle, Charles E.
Tappmeyer, Wilbur P.

Department(s)

Materials Science and Engineering

Degree Name

M.S. in Metallurgical Engineering

Publisher

University of Missouri at Rolla

Publication Date

1964

Pagination

vii, 77 pages

Note about bibliography

Includes bibliographical references (pages 74-75)

Rights

© 1964 Kenneth Anderson Poush, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Thesis Number

T 1633

Print OCLC #

5959541

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Metallurgy Commons

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