Molecule of the Week

Titanium dioxide

June 27, 2005

Titanium dioxide is derived in its purest form from rutile beach sand. Used as paint pigment for its brilliant whiteness since the early 20th century, titanium dioxide is noted for its ability to withstand color change and its high refractive index. Today, it is widely used in sunblock not only as a pigment, but also for its ability to protect skin against UV light.