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Tuesday, February 12, 2019

"Novel Azo Pigment"

Yellow and turns brown with contact with kaolin clay. This is suggestive of color change with PH changes ; a possible PH indicator as well as  paint dye.
It is derived from vanillin (vanilla bean flavor component).

"The Village"

Acrylics, azo-acrylics, goauche on 9"x 11" bristol.