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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 23

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 23
AND COMPOUNDS OF THESE METALS 0 temperature for its decomposition, caustic soda is used, this body decomposing at about 8oo° C., according to the equation 6NaOH + C2 = 2Na2C03 + 3H2 + Na2. The carbon is introduced in the form of specially prepared iron carbide. The double chloride is obtained by… … Figs, i and 2. — The Netto process. A, Caustic soda reservoir ; r, tap for emptying same ; e, funnel inlet for caustic soda ; c, cover ; C, reducing furnace ; t, stopper, worked by wheel v ; i, clay jacket ; d, condenser for metallic sodium ; /z, oil reservoir ; D, storage for residual Na2C03 ; b ,…

Alum · Sulphates · Dyes and dyeing · Chemistry, Technical

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