Parts of Vincent van Gogh's "Flowers in a blue vase" painting have mysteriously changed color over time, and now scientists have figured out why: A chemical reaction between the paint and a ...

Since then it also has been produced by treating cadmium chloride or sulfate with H 2 Se. Now, in the age of nanotechnology, CdSe is made by the reaction of cadmium oxide and elemental selenium in a ...

Through a process called oxidation, which occurs naturally over time with exposure to light, the yellow-hued cadmium sulfide is being transformed into cadmium sulfate and cadmium carbonate, both ...

Meanwhile, the excess water reduced sulfate in the soil to sulfide, causing cadmium to precipitate out with the sulfide. When ...

Certain areas of the painting where Munch used cadmium yellow paint have started to lose color and flake off. To protect the piece, it has been kept in a climate controlled space at the Munch ...

The cadmium sulfide signal started to wane as early as week one, eventually decreasing by more than 80% by week four. The signal loss is a result of chemical changes in the pigments, Zhou said.

The Scream (1893) is Edvard Munch's most renowned work. Public domain via Wikimedia Commons. The vibrant colors of Edvard Munch’s most famous painting, The Scream, have faded with time ...

X-ray probes of the paint samples revealed cadmium sulfate, a breakdown product of cadmium sulfide, in paint flecks from the painting. Cadmium sulfate also showed up in artificially aged paints ...

Meanwhile, the excess water reduced sulfate in the soil to sulfide, causing cadmium to precipitate out with the sulfide. When they dried the soil out, the researchers decreased the levels of ...

Meanwhile, the excess water reduced sulfate in the soil to sulfide, causing cadmium to precipitate out with the sulfide. When they dried the soil out, the researchers decreased the levels of ...

The cadmium sulfide signal started to wane as early as week one, eventually decreasing by more than 80% by week four. The signal loss is a result of chemical changes in the pigments, Zhou said.

Rice and spinach are staples for babies' and young children's diets, but toxic metals and metalloids found in those foods can cause severe health impacts.