Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound
Pigment violet 23 is an organic compound that is a commercial pigment. It is member of the dioxazine family of heterocyclic compounds, but derived from carbazoles.[1] It is prepared by condensation of chloranil and 3-amino-N-ethylcarbazole. It has a centrosymmetric angular structure.[2] For many years, the structure was assigned, incorrectly, as having a "linear structure" (EC no. 228-767-9, CAS RN 6358-30-1) which differ in terms of the carbazole ring fusion.[3]
Pigment violet 23 is prepared by condensation of an aniline with chloranil.[4]
Synthetic route to dioxazine dyes such as pigment violet 23.
^Chamberlain, Terence "Dioxazine violet pigments" from High Performance Pigments Edited by Smith, Hugh M. 2002, 185–194. doi:10.1002/3527600493.ch12
^Panina, N.; van de Ven, R.; Verwer, P.; Meekes, H.; Vlieg, E.; Deroover, G. "Polymorph prediction of organic pigments" Dyes and Pigments 2008, volume 79, 183–192.
^Heinrich Zollinger (2003). Color Chemistry Syntheses, Properties, and Applications of Organic Dyes and Pigments. John Wiley & Sons. p. 118. ISBN 3-906390-23-3.
^Horst Tappe, Walter Helmling, Peter Mischke, Karl Rebsamen, Uwe Reiher, Werner Russ, Ludwig Schläfer and Petra Vermehren "Reactive Dyes"in Ullmann's Encyclopedia of Industrial Chemistry 2000, Wiley-VCH, Weinheim. doi:10.1002/14356007.a22_651
Pigmentviolet23 is an organic compound that is a commercial pigment. It is member of the dioxazine family of heterocyclic compounds, but derived from...
PigmentViolet 29 (C.I. 71129) is an organic compound that is used as a pigment and vat dye. Its colour is dark red purple, or bordeaux. Structurally...
instead of pigment. [citation needed] Pigmentviolet (web color dark violet) represents the way the color violet was always reproduced in pigments, paints...
carbazole is formed. Aminoethylcarbazole is used in the production of pigmentviolet23. Rimcazole is also made from carbazole proper. Carprofen is another...
closer to violet than to indigo dye for which the color is named. Pigment indigo can be obtained by mixing 55% pigment cyan with about 45% pigment magenta...
appearance to violet light. In the RYB color model historically used in the arts, purple is a secondary color created by combining red and blue pigments. In the...
is a rich brown bituminous pigment with good transparency, sitting between burnt umber and raw umber in tint. The pigment was made from the flesh of mummies...
raw material of the earliest blue pigment was lapis lazuli from mines in Afghanistan, that was refined into the pigment ultramarine. Since the late 18th...
nanometers into the spectrum, i.e., as far as violet. The hue magenta is the complement of green: magenta pigments absorb green light, thus magenta and green...
CMY (subtractive) color models, it is located precisely midway between violet and red. It is one of the four colors of ink used in color printing by an...
primary colours of pigments (red, yellow, blue), which can be mixed to form a wide gamut of colours. Red and blue mixed together form violet, blue and yellow...
brown to black, depending on the concentration of melanin in the iris pigment epithelium (located on the back of the iris), the melanin content within...
Chlorophyll a absorbs light within the violet, blue and red wavelengths. Accessory photosynthetic pigments broaden the spectrum of light absorbed, increasing...
poisoning. The pigment is resistant to acids such as nitric acid, and is difficult to combust. When YInMn Blue does ignite, it burns a violet color attributed...
Chinese purple and Chinese blue) are synthetic barium copper silicate pigments developed in China and used in ancient and imperial China from the Western...
flower colour from red/pink to blue/violet. Explanation of this phenomenon we can find in the molar ratio of co-pigment (acylquninic acid) to anthocyanin...
phthalo blue and many other names, is a bright, crystalline, synthetic blue pigment from the group of dyes based on phthalocyanines. Its brilliant blue is...
blue all the purple and violet hues. There have been instances of painters in water-colours who used only these three pigments, adding lampblack for the...
"Colors from the Earth: Violet Hematite". www.naturalpigments.com. Retrieved 2023-09-07. "Hematite: A primary ore of iron and a pigment mineral". geology.com...
150 °C and then to black at 170 °C. Manganese violet (Mn(NH4)2P2O7) is a violet material, a popular pigment, turning to white at 400 °C. "Preparation of...
Cennino Cennini in the Renaissance to make violet, but using additive colors and light instead of pigment: it is created by combining red and blue light...
that are not absorbed by the pigment, but instead are reflected. Biological pigments include plant pigments and flower pigments. Animals can appear coloured...
butterfly had co-evolved two traits, ultra-violet photoreceptors and ultra-violet reflecting wing pigments, as an effectively private (or secure) inter-species...
pH was increased from 2.2 to 5.5, the solution of the pigment became progressively more violet (λmax = 560 nm at pH 5.5), whereas similar solutions of...
Phoenician origin, Phoenician purple pigment was spread through the unique Phoenician trading empire. The pigment was expensive and time-consuming to produce...
scattering of shorter wavelengths (green, blue, and violet). Because it was widely available, yellow ochre pigment was one of the first colors used in art; the...
normally have only two cone pigments (and therefore two opponent channels), have been engineered to express a third cone pigment, and appear to demonstrate...
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