Important: Safety Warning
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.
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Home › Aniline Colors › To Dye Wool Bismarck Brown
To Dye Wool Bismarck Brown
Render the bath, prepared as in No. 2491, sour with sulphuric acid; add a quantity of sulphate of soda, immerse the wool, and add the color by small portions, keeping the temperature under 212 Fahr. Very interesting shades may be developed by combining the color with indigo paste or picric acid. (Sce No. 2601.) 2593. To Dye Cotton Bismarck