Samples from Leonardo da Vinci’s “Mona Lisa” and the “Last Supper” suggested that the artist experimented with lead oxide, the Journal of the American Chemical Society said in research that was published Wednesday. Lead oxide causes a rare compound to form under his artwork which is called plumbonacrite.
Samples from da Vinci’s “Mona Lisa” and the “Last Supper” suggested that the artist experimented with lead oxide, Journal of the American Chemical Society said in research that was published Wednesday. Lead oxide causes a rare compound to form under his artwork which is called plumbonacrite.PARIS — Samples from Leonardo da Vinci’s “Mona Lisa” and the “Last Supper” suggested that the artist experimented with lead oxide, thesaid in research that was published Wednesday.
“Plumbonacrite is really a fingerprint of his recipe,” Victor Gonzalez, the study’s lead author and a chemist at France’s top research body, the CNR, said, according to“Plumbonacrite is only stable under alkaline conditions, suggesting that it formed from a reaction between the oil and lead oxide , thesaid that a “microsample” which was previously obtained from a hidden corner of the “Mona Lisa” was analyzed as well as 17 other microsamples from the “Last Supper.
To find this, scientists used X-rays to inspect the art in order to get an idea of what techniques da Vinci used, according toThe oil-paint recipe that da Vinci used for his artwork was different from the “Mona Lisa” which had its own chemical signature, according to“He was someone who loved to experiment, and each of his paintings is completely different technically,” said Gonzalez, according to“In this case, it’s interesting to see that indeed there is a specific technique for the ground...
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