Indanthrone blue

Indanthrone blue is an organic substance made from 2-aminoanthraquinone treated with potassium hydroxide in the presence of a potassium salt. It is a pigment that can be used in the following mediums: acrylic, alkalyd, casein, encaustic, fresco, gouache, linseed oil, tempera, pastel, and watercolor painting.

Properties

It has excellent light fastness, may bleed in some organic solvents. Has a smooth texture. It is non-toxic normally but take caution when pregnant.

Color codes: PB22 and PB60