. American chemical journal . Fig. II. Fig. III. Fig. II. represents a new form of cell which is entirely freefrom the objectionable features of the older one. The upperend of the cell is glazed, inside and out, to the line, i, or to anyother depth, according to the area which the membrane isrequired to have. In some cases, where it was desired toexperiment with very small membranes—as will doubtless benecessary with the electrolytes—the whole cell was covered withthe glaze, which was afterwards ground away over and underthe spot on which the membrane was to be deposited. Con-siderable difficu
. American chemical journal . Fig. II. Fig. III. Fig. II. represents a new form of cell which is entirely freefrom the objectionable features of the older one. The upperend of the cell is glazed, inside and out, to the line, i, or to anyother depth, according to the area which the membrane isrequired to have. In some cases, where it was desired toexperiment with very small membranes—as will doubtless benecessary with the electrolytes—the whole cell was covered withthe glaze, which was afterwards ground away over and underthe spot on which the membrane was to be deposited. Con-siderable difficulty was experienced in securing a suitableglaze. We first tried a material which is used by the potters 274 Morse and Mears. on the better class of tableware. But this was found tocraze badly when applied to our cells, showing that itsexpansion coefficient was too small. However, by graduallyadding silica and feldspar to the potters material, we finallyobtained a glaze which was continuous and which did notcrack when subj
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Keywords: ., bookcentury1800, bookdecade1870, bookidamericanchem, bookyear1879
