The Use of the Rotating Anode in Electrolytic Separations (Classic Reprint): Thesis Presented to the Faculty of the Department of Philosophy of the ... for the Legree of Doctor of Philosophy - Softcover

Holmes, Mary Elisabeth

 
9781331991793: The Use of the Rotating Anode in Electrolytic Separations (Classic Reprint): Thesis Presented to the Faculty of the Department of Philosophy of the ... for the Legree of Doctor of Philosophy

Synopsis

Explore a detailed study of how rotating-dish electrolysis can separate metals using low currents and careful control of conditions. This work examines methods, electrolytes, and apparatus to uncover practical pathways for isolating metals in complex mixtures, with cadmium as the first focus.


The book presents experimental setups, results, and the reasoning behind choosing currents, temperatures, and container geometry. It documents how speed, solution composition, and heating influence the quality and yield of metal deposits, offering a groundwork for systematic study in electrolytic separations.



  • Step-by-step experimental designs for cadmium and related metal separations

  • Observations on how different electrolytes affect deposit quality and adherence

  • Discussion of challenges when separating cadmium from iron, chromium, manganese, cobalt, nickel, zinc, and magnesium

  • Practical notes on current levels, time, and washing to prevent loss and improve results


Ideal for readers of historical scientific methods and practitioners curious about early 20th‑century electro analysis and separation techniques.

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Product Description

Excerpt from The Use of the Rotating Anode in Electrolytic Separations: Thesis Presented to the Faculty of the Department of Philosophy of the University of Pennsylvania, in Partial Fulfilment of the Requirements, for the Legree of Doctor of Philosophy

Ashbrook attempted to separate cadmium from chromium, using high currents, but states that in sulphuric acid solution, the deposit always weighed low. With phosphoric acid, how ever, he obtained a successful separation.

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