Emerald green’s photooxidation from As 3+ to As 5+ is well known and has been previously reported in the literature, Monico says, but the effect of humidity on the pigment was less understood. What’s ...

Emerald green has long promised a vivid, almost electric color on canvas and paper, yet the same chemistry that delivers that brilliance quietly primes it to fail. Over time, many of these greens ...

An international team of researchers have found what triggers degradation in one of the most popular pigments used by renowned 19th and 20th century painters. Using a multi-method approach, including ...

The emergence of synthetic pigments in the 19th century had an immense impact on the art world, particularly the availability of emerald-green pigments, prized for their intense brilliance by such ...