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.
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Orange Enamels
I. Red lead, VI. Tin, 2 to 5 parts; lead, 10 parts; cal- 12 parts; red sulphate of iron and oxide of cine in an iron pot at a dull cherry-red heat, antimony, of each 1 part; flint powder, 3 and scrape off the oxide as it forms, observing parts; calcine, powder, and melt with flux, 50 to obtain it quite free from undecomposed parts. metal; when enough of the dross is obtained, II. Red lead, 12 parts; oxide of antimony, reduce it to fine powder by grinding and elu- 4 parts; flint powder, 3 parts; red sulphate of triation (see No. 14), then mix 4 parts of this powder with an equal weight of pure sand or powdered flints, and 1 of sea-salt, or other alkaline matter; fuse the mixture in a Hessian crucible, and proceed as before. The best proportions of the tin and lead, for all ordinary purposes, are about 3 of the former to 10 of the latter. The calcined mixed oxides are commonly called calcine.
VII. Lead and tin, equal parts; calcine as above; and take of the mixed oxides, or calcine (see preceding receipt) and ground flints, of each 1 part; pure subcarbonate of potash, 2 parts; as before.
VIII. Lead, 30 parts; tin, 33 parts; calcine as before, then mix 50 parts of the calcine with an equal weight of flints, in powder, and 1 pound of salts of tartar; as before. A fine dead white enamel.