III. Polarization of metallic surfaces in aqueous solutions, a new method of obtaining electricity from mechanical force, and certain relations between electrostatic induction and the decomposition of water
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Media type:
E-Article
Title:
III. Polarization of metallic surfaces in aqueous solutions, a new method of obtaining electricity from mechanical force, and certain relations between electrostatic induction and the decomposition of water
imprint:
The Royal Society, 1871
Published in:Proceedings of the Royal Society of London
Description:
<jats:p>Platinum plates immersed in sulphuric acid and water, as in a decomposition-cell, require a potential of about 1·7 Daniell’s cell to decompose the water; with potentials of less amount the platinum plates can be charged and discharged like condensers. They have enormous electrostatic capacity. Mercurial surfaces equally admit of polarization with hydrogen. A surface of mercury in dilute sulphuric acid, when made negative to the water by means of a powerful battery, flattens out.</jats:p>