Important: Safety Warning
This page contains instructions involving gunpowder or other explosive or pyrotechnic compositions. Preparing explosives as described has caused severe injuries and deaths, and is illegal in most places.
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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Tin or Polishers' Putty
Melt potash), and heat until it acquires a proper tin with rather more than an equal quantity color; then cool and powder it. Crocus of of read, then rapidly raise the heat till the antimony is sometimes sold for the above, but mixture is red hot; the tin will then be the latter is prepared thrown off in dross, which should be removed mixture is red hot; the tin will then be the latter is prepared by deflagrating equal antimony is sometimes sold for the above, but thrown off in dross, which should be removed parts of antimony and saltpetre (nitrate of as it forms. This dross is the peroxide of tin, potassa), a small portion at a time, and the or tin putty; the dross may be calcined until fused mass, separated from the dross, reduced it becomes whitish, and then reduced to to fine powder. ( Cooley.) powder.