Why Doesn't Titanium Rust

Rust is an oxidation reaction, but titanium is very inactive, it is difficult to oxidize anyway, so titanium rust is very slow, titanium alloy can be kept as new for tens of thousands of years.

Titanium is considered a rare metal because it is dispersed in nature and difficult to extract. But it is relatively abundant, ranking tenth among all elements.

Titanium ore mainly ilmenite and rutile, widely distributed in the earth's crust and lithosphere. Titanium is also present in almost all organisms, rocks, water bodies and soil. The extraction of titanium from the main ore requires the Croll or Hunter process. The most common compound for titanium is titanium dioxide, which can be used to make white pigments. Other compounds include titanium tetrachloride (TiCl4).

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