Color Swatch created using heavy application/medium application/50% tint and was applied on acrylic primed canvas (7 oz) material.
This color contains the following pigments:
PY83—Diarylide Yellow 83
Pigment Type
organic, disazo
Chemical Name
n/a
Chemical Formula
C36H32Cl4N6O8
Properties
Diarylide Yellow is a semi-opaque, moderately staining, intense deep reddish yellow pigment with good tinting strength.
Permanence
Diarylide Yellow 83 has very good lightfastness and permanence. However, it can fade in tints, so some artists do not consider it suitable as an artists’ color. Many other diarylide yellow pigments are reported to have fair to poor lightfastness, and some are completely fugitive. Diarylide Yellow 83 is reputed to be one of the most permanent of the entire group.
Toxicity
Diarylide Yellow has no significant acute hazards, but chronic hazards have not been well studied.
History
Diarylide Yellow comes from a family of azo pigments called Diarylide. These yellow hued pigments were developed around 1940 and are very important in printing inks.
Alternate Names
Benzidine Yellow, Diazo Yellow.
PY119—Zinc Ferrite Brown
Pigment Type
inorganic
Chemical Name
n/a
Chemical Formula
(Zn, Fe)Fe2O4
Properties
Zinc Ferrite Brown is a yellowish brown.
Permanence
n/a
Toxicity
n/a
History
Zinc Ferrite Brown has been used in paints and plastics.
Alternate Names
Zinc Iron Yellow, Zinc Ferrite