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  2. Bronze disease - Wikipedia

    en.wikipedia.org/wiki/Bronze_disease

    Bronze disease is an irreversible and nearly inexorable corrosion process that occurs when chlorides come into contact with bronze or other copper-bearing alloys. [1] It can occur as both a dark green coating, or as a much lighter whitish fuzzy or furry green coating. [1]

  3. Conservation and restoration of outdoor bronze objects

    en.wikipedia.org/wiki/Conservation_and...

    Protective elements for bronze fountains are particularly important, since water is one of the leading causes for alterations or corrosion in a bronze. [2] Bronze sculptures incorporated in fountains will need more layers of wax, because the spray of water will cause deterioration of the wax at a faster pace than would normally happen.

  4. Chemical coloring of metals - Wikipedia

    en.wikipedia.org/wiki/Chemical_coloring_of_metals

    Brown or black can be used as a base color for copper patina. If the amount of chlorides decreases the color will be more bluish-green, if carbonate decreases, more yellow-green. [27] Black for copper. Solution of sodium polysulfide 2.5%, items must be submerged in the solution after color developing, wash, dry and wax or varnish colored object ...

  5. This Is Why Your Skin Turns Green After Wearing Certain ... - AOL

    www.aol.com/why-skin-turns-green-wearing...

    The good news: there are still ways to wear your favorite pieces of jewelry. The post This Is Why Your Skin Turns Green After Wearing Certain Jewelry appeared first on Reader's Digest.

  6. Pickling (metal) - Wikipedia

    en.wikipedia.org/wiki/Pickling_(metal)

    Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminum alloys. [1] A solution called pickle liquor , which usually contains acid , is used to remove the surface impurities.

  7. Nasa’s Perseverance rover spots shocking ‘green spots’ on Mars

    www.aol.com/nasa-spots-shocking-green-spots...

    In similar rocks to those on Mars, green spots of this kind can be seen, and form when water runs through the sediment before it hardens into rock, which changes the chemical reaction and leaves ...

  8. Green Day Banned From Las Vegas Radio Stations After Billie ...

    www.aol.com/green-day-banned-las-vegas-090601627...

    Some radio stations in the city have pulled the plug on Green Day’s music after the band’s frontman called Las Vegas the “worst s---hole in America” during a hometown show in San Francisco ...

  9. Conservation and restoration of shipwreck artifacts - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Iron and copper oxides can penetrate deep into the pores of ceramics and stones and create reddish-brown to black stains (iron oxide) and blue-green stains (copper oxides). The use of EDTA salt solution can be used to remove the oxides. A mild solution consists of 3% to 5% of EDTA; 15% to 20% solution in water on ceramics to remove the stains.

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