Color Swatch created using Heavy application/diluted application and was applied on Cold Press Watercolor Paper (150 lb) material.
This color contains the following pigments:
PO73—Irgazin Orange
Pigment Type
organic, aminoketone
Chemical Name
n/a
Chemical Formula
n/a
Properties
Ciba describes Irgazin Orange as 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.
Permanence
Irgazin Orange has been demonstrated to have good stability and lightfastness in automotive applications.
Toxicity
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."
History
Irgazin Orange was developed as a lead-free alternative opaque orange pigment. It is used in decorative, industrial, and automotive applications, often to color plastics and polymers.
Alternate Names
Bright Orange, Aritint Ornage, Unisphere DPP Orange
PR254—Irgazin Red
Pigment Type
organic, aminoketone
Chemical Name
Bis-(p-chrolopheny)-1. 4-diketopyrrolo(3. 4-c)pyrrole
Chemical Formula
n/a
Properties
According to the manufacturer Ciba, Irgazin Red "is a clean, highly saturated mid shade red with high temperature resistance, excellent color strength, outstanding chemical, solvent and bleed resistance, and good weatherfastness." Irgazin Red is opaque and has strong covering power.
Permanence
n/a
Toxicity
According to the Australian government's Ministry on Health and Aging, "The notified chemical exhibited low oral and dermal toxicity in rats, did not exhibit toxic effects when administered orally to rats for 28 days, was not a skin irritant in rabbits, was not a skin sensitiser in guinea pigs, was not mutagenic in bacteria and was not clastogenic in CHO cells in culture. However, the notified chemical was a slight eye irritant in rabbits. On the basis of submitted data, the notified chemical would not be classsified as hazardous in accordance with Approved Criteria for Classifying Hazardous Substances."
History
Irgazin Red, used as an automotive paint and as a colorant in plastics, was developed as one of a range of pigments to replace lead based pigments. In art materials, it is often used as a synthetic and lightfast replacement for Carmine, a laked pigment that was originally produced from the body of the cochineal insect.
Alternate Names
Magnacryl Red, Versal Red, Microlith Red, Unisphere Red, Cromophtol Red
