The researchers found the main cause of deterioration is one of the world’s most precious works of art:Edvard Munch’s”the scream.”
By performing the X-ray detector of the chip of paint from the 1910 painting and paint samples with similar composition, they determine the cadmium sulfuric acid decomposition products of cadmium sulfide, the coating spots from”the scream.”
The work of the Western Asia Conjunto, a chemist in Italy the National Research Council in Perugia, and her colleagues published Friday in the scientific progress.
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The scientists showed that the cadmium sulfate also appears in the artificially aged coating exposed to 95%humidity, in light and dark-but similar sample was exposed to light in a 45%humidity showed no signs of Decay.
Moisture seems to be the main culprit in the aging of the famous painting, according to the survey results and painting is best kept at 45% humidity or lower.
Conservation efforts of the works of other painters, including Van Gogh and Matisse, could be assisted by this research.