1 | "Why chrome?" the man asked. | |
2 | They studied the chemical properties of chrome yellow paint left in historic tubes from this time period. | |
3 | We have to live with hexavalent chromium and manage it at the source. | |
4 | The collaborative study, published in the peer-reviewed journal Analytical Chemistry this week, confirmed chemical changes in chrome yellow in two of Vincent van Gogh's paintings. | |
5 | In fact, the chrome yellow chemical reaction occurred between the layers of varnish and paint. |