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https://www.finishing.com/51/98.shtml
2000. A. It is true that "Cyanide Bombing" process is the most preferred mass finishing process since it is fast and can be batch treated. I have personally worked with bombing of jewelry and I have to say that the word "toxic " is pushing it a bit too far.
https://dtsc.ca.gov/cyanide-waste-produced-in-jewelry-manufacturing-fact-sheet/
Cyanide, in the form of sodium and potassium cyanide, is used in the jewelry manufacturing industry for electroplating, “cyanide bombing,” and metal stripping. These processes generate the following types of hazardous wastes: spent 1 process baths containing cyanide, ...
https://www.finishing.com/02/21.shtml
Cyanide bombing to clean up gold jewelry. A discussion started in 1996. Add your Q. or A. to restore it to the "Current Topics" discussions. 1996. Dear Sir, We manufacture award jewelry. I'm looking into setting up a cyanide/bombing sink. Is this still the preferred method to clean soldering scale and oxidation from karat gold and silver?
https://www.latimes.com/archives/la-xpm-1992-06-03-me-748-story.html
Potassium cyanide and sodium cyanide are used for cleaning jewelry and are legal to buy for home-based businesses. Other forms of cyanide are used in silver plating. Mary Bloom, who works for the ...Estimated Reading Time: 5 mins
https://orchid.ganoksin.com/t/what-is-jewelry-bombing/28073
and telling about the dangers and process of cyanide bombing. I use to work with cyanide in photo lab work and it was always treated with the highest of care. Many years ago I had a couple of friends who had a plating shop as part of their jewelry business and they offered plating services to the community.Estimated Reading Time: 5 mins
https://orchid.ganoksin.com/t/goldsmithing-use-of-cyanide/63149
Basically you put the jewelry into a solution of potassium cyanide and then pour in some peroxide and this leads to an effusion of cyanide gas and a boilover, hence the name bombing. The process actually removes some gold and leaves a clean, pure gold layer. This should be done under a fume hood or outside, as cyanide gas is released. -royjohn
https://orchid.ganoksin.com/t/bombing/5912
cyanide, especially with peroxide in there as well, are dissolving metal at a fairly significant rate… Now, on a normal cast or fabricated piece of jewelry, you’ll bomb off less than you migh polish, and if you get the process working right, you’ll get a nice workable finish will less metal loss than by actual polishing.
https://www.ishor.com/detoxification-of-bombing-solution-wastes-containing-cyanide-ion
The cyanide concentration of a sample of this electrolyzed waste bombing solution was found to be 0.016 M. This suggests the interpretation that electrolysis reduced the initially present cyanide ion concentration by as much as 80%. The electrolytic oxidation of cyanide ion produces cyanate ion.
https://www.starcojewellers.com.au/p-jewelry/potassium-cyanide-jewelry-cleaner.html
Cyanide bombing to clean up gold jewelry. A discussion started in 1996. Add your Q. or A. to restore it to the "Current Topics" discussions. 1996. Dear Sir, We manufacture award jewelry. I'm looking into setting up a cyanide/bombing sink. Is this still the preferred method to clean soldering scale and oxidation from karat gold and silver?
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