Important: Safety Warning
This page describes practices involving highly flammable materials in ways that create a serious risk of fire or explosion.
In addition, this page describes trade processes that use dangerously toxic materials such as cyanide solutions, mercury amalgams, or strong acids. These processes require training, equipment, and precautions far beyond what the text describes.
This information has been left in for historical purposes but should not be acted upon.
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To Dye Leather Green
Aniline green is well adapted to dyeing leather, and its application is quite simple. Whether used in paste or as powder, we must make a concentrated aqueous solution. The leather is brushed over with a solution of sulphate of ammonia, mixed with water, the dye solution applied at 95° Fahr., and it must be endeavored, by rapid manipulation, to prevent the dye from penetrating through the leather.
By the addition of picric acid, the blueish shade of this dye-stuff is modified to leaf green, and it becomes faster; but the picric acid must not be added to the color solution; 6343. Fluid for Removing Grease Stains from Silk, &c. A fluid for remov- it must be applied to the leather before or ing greasy stains from silk, &c., may be pre- after the dyeing with aniline green. (Springpared by mixing 2 ounces rectified spirits of muhl.) turpentine, 1 ounce absolute alcohol, and ounce sulphuric ether.