Holbein Watercolour Permanent Yellow Orange 15ml Tube

Permanent Yellow Orange (W238) Jaune Permanent

Hansa Yellow (Pigment PY74, monoazo ) is one of the most commercially important pigments of the Hansa Yellow group, considered superior to many others in its class based on both tinting strength and lightfastness. Several PY74 grades with different particle sizes are available. Grades with finer particle size are more brilliant and transparent. Pigment PY74 ranges from reddish yellow to greenish yellow, with temperature shifts from cool to warm hues. It has high tinting strength and average to slow drying time.

Arylide yellow, also known as Hansa yellow and monoazo yellow, are a family of organic compounds used as pigments.

Historically, 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.

Diarylide Yellow (organic, disazo) is a semi-opaque, moderately staining, intense deep reddish yellow pigment with good tinting strength.

Historically, 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.

Transparent Pyrrole Orange (organic, aminoketone) is a yellow-shade orange with optimum performance; high saturation and excellent durability, excellent bleed resistance, and intrinsic strength coupled with good opacity and moderate rheology. It is semi-opaque, less opaque than Cadmium Orange.

Irgazin Orange historically was developed as a lead-free alternative opaque orange pigment. It is used in decorative, industrial, and automotive applications, often to colour plastics and polymers.

• Pigments: Hansa Yellow (monoazo) PY74, Diarylide Yellow 83 (disazo) PY83, Transparent Pyrrole Orange (aminoketone) PO73
• Code ONE
• Permanence: ** Moderately Durable Colour. This Hansa Yellow has better lightfastness that other yellow monoazo pigments, particularly in the darker shades.
• 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’ colour. 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.
• Transparent Pyrrole Orange has been demonstrated to have excellent stability and lightfastness in automotive applications.
• Opacity/Transparency: Opaque,
• Staining Quality: Non-staining, easy colour to lift.
• Quality: Exceptional
• Price Series: A
• Toxicity: Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied. Diarylide Yellow has no significant acute hazards, but chronic hazards have not been well studied. Transparent Yellow Orange: The Australian government's Department of Health and Aging, reported in its Summary Report: NA/238 that "Irgazin DPP Orange 16AOA is likely to be of low oral and dermal toxicity in humans and to be non-irritating or very slightly irritating to the eyes and skin. It may cause lung irritation due to its particle size."