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How is mercury added to these products?



hello all. 

i am compiling a rather exhaustive list of products and processes that 
involve or contain mercury.  there are a few products that are listed in 
various references, but i can't find how/why the mercury is added or becomes 
a contaminant.  

NO LENGTHY DETAILS necessary, but any input on the following items would be 
greatly appreciated.

- bronzing
- printing ink
- vinyl chloride resin
- composites (i assume from the resins)
- paper coating (aside from mildewicide on wallboard)
- textile printing
- primary copper smelting and copper foil production
- adhesives/sealants
- glass
- finger print powder
- ion engines
- slip ring in packaging production equipment 

Thanks so much.  

Michelle Gaither
Tech Lead, PPRC
www.pprc.org

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