One of the first synthesized pigments, this deep, nearly black color is alkaline sensitive so not found in acrylic paints. GOLDEN'S modern mixture provides a similar color with great permanence. (Series4) 

Lightfastness: II, Permanency: Very Good, Opacity/Transparency: 2 Semi-Transparent 

Pigment: Amorphous Carbon produced by charring animal bones, PBk9, 74160 / Copper Phthalocyanine, PB15:0, 51319 / Carbazole Dioxazine, PV23, 77266