Tag » Mas Subramanian

February 22, 2010

Blue Hue

An accidental discovery has produced a new non-toxic blue pigment

An ancient quest for the perfect blue ended in a hot furnace in OSU’s Department of Chemistry — totally by accident. A blue pigment that is both safe and stable eluded the Egyptians, the Han Dynasty and the Mayans. The French developed cobalt blue in the 1800s, but it contains carcinogens. Prussian blue releases cyanide. […]