Search results
Results from the WOW.Com Content Network
Since at least the mid-19th century, doctors have known that silver or silver compounds can cause some areas of the skin and other body tissues to turn grey or blue-gray. [9] [10] Argyria occurs in people who ingest or inhale silver in large quantities over a long period (several months to many years). People who work in factories that ...
His skin turned blue after he began taking a homemade colloidal silver treatment and rubbing a silver preparation on his skin in an attempt to treat problems with his sinuses, dermatitis, acid reflux, and other issues. This caused him to develop argyria. [2] In 2008, Karason first gained prominence after appearing on Today. [3]
The processes of chemical coloring of metals are as old as metalworking technology. Some of the earliest-known examples of colored metal objects are about 5,000 years old. They are bronze casts with some silver-colored parts, which originate from the Anatolian region. [2] Similar processes can be found on some ancient Egyptian copper sheets. [3]
This can only be used as a very rough guide, for instance if a narrow range of wavelengths within the band 647–700 nm is absorbed, then the blue and green receptors will be fully stimulated, making cyan, and the red receptor will be partially stimulated, diluting the cyan to a greyish hue.
Gold, silver, platinum, palladium, and a number of other elements do not produce a characteristic flame color, although some may produce sparks (as do metallic titanium and iron); salts of beryllium and gold reportedly deposit pure metal on cooling. [12]
For premium support please call: 800-290-4726 more ways to reach us
Yes! You can take your email on the go with an iOS & Android app.
Upgrade to a faster, more secure version of a supported browser. It's free and it only takes a few moments: