Cobalt yellow
Introduced in 1852, it replaced gamboge, the yellow gum used until the 19th century. It remained popular until the late 19th century, when cadmium yellow became popular.
Manufacturer / product code: Kremer / 43500
Chemical description: potassium cobaltinitrite
Color: yellow
Color Index: PY40
More info: Pigments Through The Ages
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Raman spectroscopy 632 nm
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NIR Reflectance spectroscopy
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