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:
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
PV19—Quinacridone Violet
Pigment Type
organic synthetic, quinacridone
Chemical Name
n/a
Chemical Formula
C20H12N2O2
Properties
Quinacridone Violet is a high performance pigment with an average drying time and uneven dispersal.
Permanence
Quinacridone Violet has excellent lightfastness and is considered the most lightfast organic pigment in this shade range.
Toxicity
Quinacridone Violet has no known acute hazards. Overexposure to quinacridone pigments may cause skin irritation. Quinicridone pigments contain a compound found to be a skin, eye, and respiratory irritant.
History
Although quinacridone compounds became known in the late 19th century, methods of manufacturing so as to make them practical for use as commercial pigments did not begin until the 1950s. Quinacridone pigments were first developed as coatings for the automotive industry, but were quickly adopted by artists.
Alternate Names
Quinacridone Red (PR192).
