This shade almost reminds me of my beloved Fiestaware shade, “Radioactive Red”. ☢️
The color of uranium glazed Fiestaware comes from uranium oxide (UO₃) which is formed by heating uranium peroxide and driving off water, oxygen and other volatile impurities. As the yellow peroxide is carefully heated, it will gradually change into a vivid orange oxide. If heated further, it begins converting into darker uranium oxides and loses that brilliant orange color.
Anyways, not it….but still I love this and I’m reminded of it from this, ha.
mercuric oxide exhibits thermochromism on heating, the color changes from yellow/orange to red to rusty; the inverse occurs on cooling.
thermochromic Hg salts were once used in paint industrially. as parts failed, friction generated heat which caused an obvious color change.