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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To Coat Iron with Zinc
In covering iron with zinc, the precautions necessary for copper are not required; zinc being the positive metal, acids have a stronger affinity for it than for iron, and therefore an acid solution may be used. The solution generally used is the sulphate, used in the same way as sulphate of copper. (See No. 3661.)