Fact Sheet 2013–3059
Titanium (Ti) is a strong silver-gray metal that is highly resistant to corrosion and is chemically inert. It is as strong as steel but 45 percent lighter, and it is twice as strong as aluminum but only 60 percent heavier. Titanium dioxide (TiO2) has a very high refractive index, which means that it has high light-scattering ability. As a result, TiO2 imparts whiteness, opacity, and brightness to many products. ...Because of the unique physical properties of titanium metal and the whiteness provided by TiO2, titanium is now used widely in modern industrial societies.
First posted September 10, 2013
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Woodruff, Laurel, and Bedinger, George, 2013, Titanium—Light, strong, and white: U.S. Geological Survey Fact Sheet 2013–3059, 2 p., http://pubs.usgs.gov/fs/2013/3059/.