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, and its chronic hazards have not been well studied. PCB (polychlorinated biphenyl) contamination is possible in materials produced prior to 1982.
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.
PY53—Nickel Titanium Yellow
Pigment Type
inorganic
Chemical Name
mixed metal oxide
Chemical Formula
(Ti,Ni,Sb)O2
Properties
Nickel Titanium Yellow is one of the cleanest and brightest of the inorganic pigments. It has a low tinting strength and average to slow drying time.
Permanence
Nickel Titanium Yellow has excellent lightfastness and outstanding stability with regard to chemicals, weather, and heat. It is durable in exterior conditions.
Toxicity
Nickel Titanium Yellow is not considered toxic.
History
Nickel Titanium Yellow was developed in the 1960s.
Alternate Names
Nickel Titanate Yellow, Nickel Yellow.
PY3—Hansa Yellow
Pigment Type
organic
Chemical Name
n/a
Chemical Formula
C16H12CL2N4O2
Properties
This Hansa yellow is a transparent yellow. It has great brightness and tinting strength and its drying time ranges from average to slow.
Hansa Yellow makes more intense tints and cleaner secondaries than Cadmium Yellows, especially when mixed with other organic or modern colors like Phthalo Blue and Green. Because they are more transparent, they have great value as glazing colors.
Permanence
This Hansa Yellow has fair to good permanence, particularly in the lighter shades.
Toxicity
Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied.
History
Hansa Yellows were first made in Germany just before WW1 from a series of synthetic dyestuffs called Pigment Yellow. They were intended to be a synthetic replacement for Cadmium Yellow.
Alternate Names
Arylide, Arylide Yellow, Azo, Brilliant Yellow, Monoazo, Monolite Yellow, Permanent Yellow.
