Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 214
5 have exact equivalents of hydrogen and oxygen set free, asthough water had alone been the electrolyte. The presence ofthe acid and alkali are shown by performing the decomposi-tion in a V-tube (Fig. 124), and colouring the sodium sulphatesolution with a litmus, which when neutral (i.e. neither… … Fig. 124. 129. Potassium set free by Electrolysis.—Under proper conditions, potassium has been obtained in a pure stateas a product of electrolysis. Its existence was thus demon-strated by Davy. He applied to the surface of a fragment ofcaustic potash, slightly moistened by exposure for a…
Electricity
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
