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The manufacture of alum and the sulphates and other salts of alumina and iron; their uses and applications as mordants in dyeing and calico printing, and their other applications in the arts, manufactures, sanitary engineering, agriculture, and horticulture (1901)

Geschwind, Lucien · London : Scott, Greenwood & son; New York : D. Van Nostrand co. [etc., etc.] · leaf 271

An illustration from The manufacture of alum and the sulphates and other salts of alumina and iron; their uses and applications as mordants in dyeing and calico printing, and their other applications in the arts, manufactures, sanitary engineering, agriculture, and horticulture, 1901, leaf 271
AND SULPHATES OF IRON 249 The metal is distributed uniformly over the bed by means of a wooden levelling bar, whose ends slide along the table edges, and the breadth of which enables the thickness of the cast sheet A … to be regulated according to requirements. All that is then necessary is to leave the sheet to cool down, and cut it up as required. The joints are soldered by the autogene method invented by Desbassyns de Richemond, a process which, when performed by M Fig. 163. — Leaden hydrogen generator for the…

Alum · Sulphates · Dyes and dyeing · Chemistry, Technical

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