Materia photographica : a treatise on the manufacture, properties, and uses of the substances employed in photography (1891)
Leaper, Clement J · London : Iliffe · leaf 71
tained in (1) to remove the greater part of the iron as fusible ferrous silicate (FeSi03). (3.) Strongly heating the product obtained in (2), when blister copper is obtained Cu2S + 2CuO = S02 + 2Cu2. (4 ) Refining the blister copper from (3) by strongly heating it in a current of air to remove the… … L. — Perfectly pure copper may be obtained by passing a current of electricity from four Grove’s cells (or other cells of equivalent power) through a solution of copper sulphate, using electrodes of platinum. A. — A red metal somewhat soft and practically unacted upon by the atmosphere. Occurs in…
Photography
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