Author : M. E. Straumanis
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (227 download)
Book Synopsis The Trivalency of Gallium Ions Formed During the Dissolution of the Metal in Acids by : M. E. Straumanis
Download or read book The Trivalency of Gallium Ions Formed During the Dissolution of the Metal in Acids written by M. E. Straumanis and published by . This book was released on 1963 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gallium dissolves very slowly in diluted acids like HCl, H2SO4 and HClO4. T rate can be sub stantially accelerated if the metal is connected with a Pt electrode in the same solution. From the volume of the hydrogen developed the trival ency of Ga ions going into solution can be cal culated. The same ionic charge is obtained from coulometric measurements using Ga amalgam as an anode. Ga disintegrates partially while it is going anodically into solution. The diameter of the smallest observable Ga particles is below 7 x 10 to the -5th power mm in diameter. If the solution is not cooled the formation of larg er metallic spheres is observed. Disintegration explains the deviation from Faraday's law and the presence of the small particles - the reducing ability of the electrolyte. The postulation of Ga ions of lower valency is not necessary and their presence can not be proved. (Author).