Edinburgh New Philosophical Journal (1844 Edinburgh New Philosophical Journal . edinburghnewphil38edin Year: 1844 - 1845 Mr R. Adie's Account of Electrical Experiments. 99 hermetically sealed and opened to the air at pleasure. The annexed figure represents a cell constructed with this view : AA. A piece of ordinary glass test tube. B. A long capillary point. C. A piece of pure silver wire bent in two or three folds before insertion, to give surface, then fused air-tight into the end of the glass tube. D. A similar piece of iron wire. When the tube A A is filled with pure water, and sealed
Edinburgh New Philosophical Journal (1844 Edinburgh New Philosophical Journal . edinburghnewphil38edin Year: 1844 - 1845 Mr R. Adie's Account of Electrical Experiments. 99 hermetically sealed and opened to the air at pleasure. The annexed figure represents a cell constructed with this view : AA. A piece of ordinary glass test tube. B. A long capillary point. C. A piece of pure silver wire bent in two or three folds before insertion, to give surface, then fused air-tight into the end of the glass tube. D. A similar piece of iron wire. When the tube A A is filled with pure water, and sealed at B, there is a slight oxidation shewn through the first twelve hours, caused by the air absorbed in filling; for this form requires two or three heatings before it is filled. A voltameter with sheathed cop- per poles* and filled with acidulated water, shewed this action when connected with the wires C and D; the bells of hydrogen were seen slowly to rise one by one: after twelve hours no gas could be seen, it continued perfectly inactive for some time. The orifice B was opened, and within twelve hours there was a steady current decom- posing water. As I considered this as the test experiment, I wished to have the electrical force in excess, for which a four-cell battery was constructed, each cell exactly like the one above; these were connected as a four pair series, and a small sheathed glass platina pole voltameter attached. When first made I could, with a magni- fier, detect the slow formation of beads of gas which rose at inter- vals of several minutes each. In twelve hours this action disappear- ed, and the battery remained perfectly inactive for some time ; the atmosphere was admitted by the capillary points, and in six hours the voltameter shewed the passage of a current. The effect increased for nearly two days, when there was, considering the size of the plates, a rapid decomposition in the voltameter; the orifices were now closed. By this time the water in the cells
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