Important: Safety Warning
This page contains a formula or preparation using substances now known to be dangerously toxic, such as arsenic, mercury, lead, or cyanide compounds. Exposure to these substances can cause severe poisoning, permanent injury, or death.
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.
White Lead
This pigment, at a temperature of 122° Fahr., and stirred which enters largely into the composition of round for an hour at this temperature. Anvarious colored paints, is carbonate of lead, other bath is to be made in the meantime, in obtained by suspending rolls of thin sheet lead a fresh kettle, with 3 pounds chloride of baover malt vinegar or pyroligneous acid in close rium, and the whole immersed in this, and vessels, the evaporation of the acid being in- kept at a temperature of 122° Fahr., for two duced and sustained by the heat of a steam- hours. By this process the sulphate of barybath or other appliances. tes, the most beautiful of whites, will be