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Aureolin
Aureolin (sometimes called cobalt yellow) is a pigment sparingly used in oil and watercolor painting. Its color index name is PY40 (40th entry on list of yellow pigments). It was first made in 1831 by Nikolaus Wolfgang Fischer in Breslau characterizing it as "Doppelsalze" or double-salts and its chemical composition is potassium cobaltinitrite. He characterized it again and wrote more extensively about it in 1842, naming it "Salpetrichtsaures Kobaltoxydkali". In 1851-1852, Edouard Saint-Evre synthesized cobalt yellow independently. He is credited with the introduction of cobalt yellow as an artists pigment. The investigation by Gates gives the exact modern procedures for the preparation of aureolin and also the methods for its identification in paintings.- Aureolin is rated as permanent in some reports but there are other sources which rate it as unstable in oils but pronounce it stable in watercolors. Others find it unstable in watercolors, fading to greyish or brownish hues. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium Cobaltinitrite
Potassium hexanitritocobaltate(III) is a salt with the formula K3 o(NO2)6 It is a yellow solid that is poorly soluble in water. The compound finds some use as a yellow pigment under the name Indian Yellow. The salt features potassium cations and an trianionic coordination complex. In the anion, cobalt is bound by six nitrito ligands, the overall complex having octahedral molecular geometry. The oxidation state of cobalt is 3+. Its low-spin d6 configuration confers kinetic stability and diamagnetism. The compound is prepared by combining cobalt(II) and nitrite salts in the presence of oxygen. The corresponding sodium cobaltinitrite is significantly more soluble in water. The compound was first described in 1848 by Nikolaus Wolfgang Fischer in Breslau, and it is used as a yellow pigment called Aureolin. See also *Sodium hexanitritocobaltate(III) Sodium hexanitritocobaltate(III) is inorganic compound with the formula . The anion of this yellow-coloured salt consists of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium Cobaltinitrite
Potassium hexanitritocobaltate(III) is a salt with the formula K3 o(NO2)6 It is a yellow solid that is poorly soluble in water. The compound finds some use as a yellow pigment under the name Indian Yellow. The salt features potassium cations and an trianionic coordination complex. In the anion, cobalt is bound by six nitrito ligands, the overall complex having octahedral molecular geometry. The oxidation state of cobalt is 3+. Its low-spin d6 configuration confers kinetic stability and diamagnetism. The compound is prepared by combining cobalt(II) and nitrite salts in the presence of oxygen. The corresponding sodium cobaltinitrite is significantly more soluble in water. The compound was first described in 1848 by Nikolaus Wolfgang Fischer in Breslau, and it is used as a yellow pigment called Aureolin. See also *Sodium hexanitritocobaltate(III) Sodium hexanitritocobaltate(III) is inorganic compound with the formula . The anion of this yellow-coloured salt consists of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nikolaus Wolfgang Fischer
Nikolaus Wolfgang Fischer (15 January 1782 – 19 August 1850) was a German chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe th .... He first synthesized the Potassium cobaltinitritelater used as Aureolin pigment. References * 1782 births 1850 deaths 19th-century German chemists {{Germany-chemist-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Inorganic Pigments
The following list includes commercially or artistically important inorganic pigments of natural and synthetic origin.. Purple pigments Aluminum pigments * Ultramarine violet: (PV15) - a synthetic or naturally occurring sulfur containing silicate mineral. Copper pigments * Han purple: BaCuSi2O6. Cobalt pigments * Cobalt violet: (PV14) Co3(PO4)2. Manganese pigments * Manganese violet: NH4MnP2O7 (PV16) manganic ammonium pyrophosphate. Gold pigments * Purple of Cassius: Gold nanoparticles suspended in tin dioxide - Aux • SnO2. Blue pigments Aluminum pigments *Ultramarine (PB29): a synthetic or naturally occurring sulfur containing silicate mineral - (generalized formula) *Persian blue: made by grinding up the mineral Lapis lazuli. The most important mineral component of lapis lazuli is lazurite (25% to 40%), a feldspathoid silicate mineral with the formula . Cobalt pigments * Cobalt blue (PB28): cobalt(II) aluminate. * Cerulean blue (PB35): cobalt(II) stannate. *C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grumbacher
Grumbacher is a US brand of art materials. Grumbacher offers products for artists including acrylic paints, oil paints, watercolor paints and other painting media, as well as brushes. Overview The company was founded in 1905 by Max Grumbacher. It became a subsidiary of Sanford L.P., a Newell Rubbermaid company, on Gablind.com until September 2006, when it was acquired by Chartpak, Inc., an art materials and office products company headquartered in Leeds, Massachusetts
Leeds is a village in the western portion of the city of Northampton, Massachusetts, United States, bordering Williamsburg—along t ...
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Winsor & Newton
Winsor & Newton (also abbreviated W&N) is an English manufacturing company based in London that produces a wide variety of fine art products, including acrylics, oils, watercolour, gouache, brushes, canvases, papers, inks, graphite and coloured pencils, markers, and charcoals. History The company was founded in 1832 by William Winsor and Henry Newton. The firm was originally located at Henry Newton's home in 38 Rathbone Place, London. This was then part of an artists' quarter in which a number of eminent painters, including Constable, had studios, and other colourmen were already established. The standards of quality for W&N's most renowned line of kolinsky sable brush, the Series 7, began after Queen Victoria ordered it should be "the very finest watercolour brush" in 1866. A few months before his death, Henry Newton sold the business to the newly incorporated firm of "Winsor & Newton Ltd.", which included members of both families amongst the shareholders. In 1937, W&N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sennelier
Sennelier is a French manufacturing company of list of art media, art materials, mostly famous for its hand selected pigments. The company produces a wide range of paint products, including acrylic paint, acrylic, oil paint, oil, watercolor painting, watercolor, gouache, oil pastel, oil and soft pastel, india ink, tempera, and other media. History Gustave Sennelier opened this art supply store in 1887, near the famous Ecole des Beaux-Arts. Initially, Sennelier sold paints made by various manufacturers; later he chose to produce his own paints using local pigments and binders procured from his travels across Europe. Anecdotally, it is believed that Sennelier gained prominence at this time. Art-supply shops were ubiquitous, and Cézanne, Paul Gauguin, Gauguin, and many other artists would shop around in the neighborhood, in search of particular shades of paint. If Gustave Sennelier didn't stock the color, he would create it for his painters. In 1949, Henri Sennelier, Gustave's son ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Colors
These are the lists of colors; * List of colors: A–F * List of colors: G–M * List of colors: N–Z * List of colors (compact) * List of colors by shade * List of color palettes * List of Crayola crayon colors * List of RAL colors * List of X11 color names See also * Index of color-related articles * List of dyes This is a list of dyes with Colour Index International generic names and numbers and CAS Registry numbers. Note * Synonyms should be treated with caution because they are often used inconsistently, see discussion page and external lin See also ... Templates that list color names * * * * {{DEFAULTSORT:colors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pigments
A pigment is a colored material that is completely or nearly insoluble in water. In contrast, dyes are typically soluble, at least at some stage in their use. Generally dyes are often organic compounds whereas pigments are often inorganic compounds. Pigments of prehistoric and historic value include ochre, charcoal, and lapis lazuli. Economic impact In 2006, around 7.4 million tons of inorganic, organic, and special pigments were marketed worldwide. Estimated at around US$14.86 billion in 2018 and will rise at over 4.9% CAGR from 2019 to 2026. The global demand for pigments was roughly US$20.5 billion in 2009. According to an April 2018 report by ''Bloomberg Businessweek'', the estimated value of the pigment industry globally is $30 billion. The value of titanium dioxide – used to enhance the white brightness of many products – was placed at $13.2 billion per year, while the color Ferrari red is valued at $300 million each year. Physical principles Like ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inorganic Pigments
In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as ''inorganic chemistry''. Inorganic compounds comprise most of the Earth's crust, although the compositions of the deep mantle remain active areas of investigation. Some simple carbon compounds are often considered inorganic. Examples include the allotropes of carbon (graphite, diamond, buckminsterfullerene, etc.), carbon monoxide, carbon dioxide, carbides, and the following salts of inorganic anions: carbonates, cyanides, cyanates, and thiocyanates. Many of these are normal parts of mostly organic systems, including organisms; describing a chemical as inorganic does not necessarily mean that it does not occur within living things. History Friedrich Wöhler's conversion of ammonium cyanate into urea in 1828 is often cited as the starting point of modern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
