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.
Home › Bronzing › Graham's Quick Bronzing Li- Zinc
Graham's Quick Bronzing Li- Zinc
Agitate the articles in a solution of 8 quids. The following 19 receipts are prepara- drachms sulphate of copper, and 8 drachms tions for bronzing brass, copper, and zinc, by simple immersion. Their action is immediate. hyposulphite of soda, in 1 pint water. 3815. Copper-Colored Bronzing for Zinc Plates. Make a solution of 4 drachms sulphate of copper, and 4 drachms pearlash, in 3798. Black or Brown Bronzing for Brass, Copper, or Zinc. Dissolve 51 pint water. Immerse the zinc plate in it, drachms nitrate of iron in 1 pint water. Or: 5 connected at one end with a plate of copper, drachms perchloride of iron in 1 pint water.
A black may also be obtained from 10 ounces muriate of arsenic in 2 pints permuriate of iron, and 1 pint water. 3799. Brown or Red Bronzing for Brass. Dissolve 16 drachms nitrate of iron, nd 15 drachms hyposulphite of soda, in 1 pint water. Or: 1 drachm nitric acid may be subtituted for the nitrate of iron.