R&F Encaustic Paint Block - Alizarin Orange, 40 ml

It is a translucent colour with a muted orange mass tone that is between cadmium and Mars orange. But its undertone is a surprising fiery orange-yellow that becomes lemony when extended out.

• Pigment Composition: PR177-Anthraquinone Red; PY83-Diarylide Yellow 83
• Paint Lines: Encaustic, Pigment Stick
• Opacity: Transparent
• Pigment Stick Drying Rate: Slow
• Classification: Synthetic Organic
• Chemical Composition: Disazo pigment, anthraquinone pigment
• Safety Information: Conforms to ASTM D-4236

Pigment Name: PR177-Anthraquinone Red

Classification: anthraquinone

Chemical Composition: Anthraquinone pigment

Properties

Anthraquinone Red is a magenta-coloured pigment that is transparent and moderately intense. It tends to fade in tints and is suitable for all media.

Permanence

Anthraquinone Red has good lightfastness and permanence in its masstone, while its tint lightfastness is moderate. Overall, lightfastness and permanence vary by brand.

Toxicity

Anthraquinone Red has no significant acute toxicity.

History

Anthraquinone pigments originated as textile vat dyes before being used as pigments. They became more popular with artists once it was discovered that careful preparation and grinding helped them to retain the brilliance of colour.

Pigment Name: PY83-Diarylide Yellow 83

Classification: Organic, disazo

Chemical Composition: Disazo pigment

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 artist’s colour. Many other diarylide yellow pigments are reported to have fair to poor lightfastness, and some are entirely 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.