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.
This information has been left in for historical purposes but should not be acted upon.
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Bright Red Dye for Wood
To 2 pounds genuine Brazil dust, add 4 gallons water; put in as many veneers as the liquor will cover; boil them for 3 hours; then add 2 ounces alum, and 2 ounces aquafortis, and keep it lukewarm until it has struck through. been dissolved 2 ounces salt of tartar (carbonate of potassa); lay the veneers in the copper, and cover them with this liquid; let it boil for 2 or 3 hours till well soaked, then to every gallon of liquor add 4 pound cf green copperas, and keep the whole at a moderate temperature till the dye has sufficiently penetrated.