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PV15 CI#77007 (Ultramarine Violet)
which is characterized by the presence of one or more azo groups (-N=N-) in its chemical structure
Full-pan watercolors were stored in a clear traveling case
Cobalt blue was the primary blue pigment used for centuries in Chinese porcelain
especially in jewelry and decorative objects
Madder Lake Deep Promotion PV15 CI#77007 (Ultramarine Violet)PR3 CI#12120 History: Madder Lake is a lake derived from the extract of the root of the madder plant (rubia tintorium). It was used by the ancient Egyptians for coloring textiles and then was continuosly used until today. Madder lake was most widely used in the 18th and 19th century, though never as extensively as the ruby like lakes. It is the darker shade of Madder Lake. **When using binders to make the pigments into paints, the color may vary.
