Quinacridone dyes
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Description
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A series of synthetic red and violet dyes composed of linear quinacridones that are made from terephthalic acid. Although the organic compound was first synthesized in 1896, quinacridone colors were first recognized as useful pigments by W. Struve at DuPont in 1955 and marketed in 1958 for the automotive industry, followed by adoption in artist paints.. Quinacridone dyes can exist in four crystalline allotropes, ranging in color from orange to violet. Their colors are intense and vibrant the specific hues dictated by with the size and structure of the pigment particles. These lightfast colorants are used in paints, printing inks, and plastics.
Synonyms and Related Terms
colorante de quinacridona (Esp.)
Paint Name Examples by Color Index number (Note: it is not consistent between manufacturers)
| Color Index number | Colors | Some Quinacridone Pigment names with Manufacture |
|---|---|---|
| PV019 | red-violet to warm red | Quinacridone violet/red [Bocour Artist Colors]; Hostaperm Red/Violet ER/ER02 [Clariant]; Monastral Red/Violet [DuPont]; Quinacridone Violet [Kremer 23710]; Quinacridone Magenta [Kremer 23395]; Acra crimson [Liquitex]; Acra violet [Liquitex]; Halo Red Rose; Cinquasia Red [Sun Chemical L 4100HD]; Cinquasia Violet [Sun Chemical K 5350] |
| PR122 | cool-toned magenta to pink | Quinacridone Magenta [Bocour Artist Colors]; Hostaperm Pink E [Clariant]; Monastral Magenta/Red [DuPont]; Acra Magenta/Acra Violet [Liquitex]; Quinacridone Magenta [Kremer 23401]; Quinacridone pink [Kremer 23153]; Fastogen Super Magenta [Sun Chemical LMR01] |
| PR202 | deep crimson/fuschia/scarlet | quinacridone [Sun 228-0022]; quinacridone magenta [Sun 228-1215]; Cinquasia Magenta [Sun Chemical L 4520/K 4535] |
| PR206 | reds/maroon | Monastral red light [DuPont]; Acra red [Liquitex]; Quinacridone red [Bocour Artist]; Quinacridone chestnut brown [Kremer 2348091]; Hostaperm red EG transparent PV209) |
| PR207 | reds/maroon | Quinacridone scarlet [Kremer 23408]; Monastral Red Light [DuPont] |
| PR209 | reds/maroon | Acra red [Liquitex]; Quinacridone Red [Bocour Artist Colors]; Quinacridone Coral [Liquitext] |
| PO48/49 | gold, golden-orange, dark orange | Quinacridone gold/burnt orange [Bocour Artist]; Quinacridone gold/burnt orange [Liquitex]; Quinacridone Burnt Orange [Kremer 23585]; Quinacridone Burnt Orange [Daniel Smith] |
| PV55 | deep dark violet | Quindo Violet [Kremer 23730] spectra given in CHSOS reference below |
Physical and Chemical Properties
- Transparent with high chroma
- Resistant to alkalis, heat and light.
- Composition = violet- C20H12N2O2
- Density = 1.5 g/ml
- Refractive Index = 2.02 - 2.04
Resources and Citations
- R. J. Gettens, G.L. Stout, Painting Materials, A Short Encyclopaedia, Dover Publications, New York, 1966
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 611
- Reed Kay, The Painter's Guide To Studio Methods and Materials, Prentice-Hall, Inc., Englewood Cliffs, NJ, 1983
- Ralph Mayer, A Dictionary of Art Terms and Techniques, Harper and Row Publishers, New York, 1969 (also 1945 printing)
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
- Monona Rossol, The Artist's Complete Health and Safety Guide, Allworth Press, New York, 1994
- Encyclopedia Britannica, http://www.britannica.com Comment: "chemical compound." Accessed 7 Apr. 2005 .
- Art and Architecture Thesaurus Online, https://www.getty.edu/research/tools/vocabulary/aat/, J. Paul Getty Trust, Los Angeles, 2000
- Website: www.handprint.com
- CHSOS: Spectra (Reflectance, XRF, Raman, FTIR) for Quinacridone violet PV19
- CHSOS: Spectra (Reflectance, XRF, Raman, FTIR) for Quinacridone purple PV55
- CHSOS: Spectra (Reflectance, XRF, Raman, FTIR) for Quinacridone magenta PR122
- CHSOS: Spectra (Reflectance, XRF, Raman, FTIR) for Quinacridone burnt orange PO48