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Pigments through the Ages - History - Cobalt violet Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt violet Cobalt violet / ko • bawlt vie • (uh) • luht / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details History of Cobalt violet: The remarkable range of pigments that could be produced with cobalt included cobalt violet, is known since 1859. Salvetat first described the preparation of cobalt violet in Comptes Rendus des Seances de l'Academie des Sciences XLVIII in an article titled, " ... http://www.webexhibits.org/pigments/indiv/history/coviolet.html · 10.3k |
Pigments through the Ages - Overview - Cobalt violet Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt violet Cobalt violet / ko • bawlt vie • (uh) • luht / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details Painted swatch of Cobalt violet. Brief description of Cobalt violet: The first real violet pigment prepared by Salvètat in 1859. It is chemically stable, but its rather high cost and low tinting power prevented its wider use in paintings. Not unlike its older sister Cobalt Green, its ... http://www.webexhibits.org/pigments/indiv/overview/coviolet.html · 14.6k |
Pigments through the Ages - Manufacture Recipes - Cobalt violet Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt violet Cobalt violet / ko • bawlt vie • (uh) • luht / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details How Cobalt violet is made: In the lab Materials needed: Cobalt(II)chloride (CoCl2·6H2O) and sodium hydrogenphosphate (NaH2PO4·10H2O) Safety (MSDSs): cobalt(II) chloride (at Fisher Scientific) Method: 2 g of cobalt chloride and 1,3 g of sodium hydrogenphosphate are each solved in ... http://www.webexhibits.org/pigments/indiv/recipe/coviolet.html · 15.2k |
Pigments through the Ages - Technical Information - Cobalt violet Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt violet Cobalt violet / ko • bawlt vie • (uh) • luht / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details About the chemical structure: Chemical name: Cobalt(II)-phosphate or Cobalt(II)-arsenate Formula: Co3(PO4)2 or Co3(AsO4)2 3D model: grey = phosphorus, light blue = cobalt, red = oxygen Refractive index: n/a Color: Color Index (C.I.) PV 48 How can you identify Cobalt violet? ... http://www.webexhibits.org/pigments/indiv/technical/coviolet.html · 15.0k |
Pigments through the Ages - History - Cobalt green Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt green Cobalt green / ko • bawlt green / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details History of Cobalt green: The preparation of zinc oxide at the end of the eighteenth century made the development of cobalt green, also known as zinc green, possible. The Swedish chemist, Rinmann is credited with developing a process for making a compound of cobalt and zinc in 1780 that he published ... http://www.webexhibits.org/pigments/indiv/history/cogreen.html · 10.4k |
Pigments through the Ages - History - Cobalt blue Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt blue Cobalt blue / ko • bawlt bloo / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details History of Cobalt blue: Although smalt, a pigment made from cobalt blue glass has been known at least since the Middle Ages, the cobalt blue established in the nineteenth century was a greatly improved one. The isolation of the blue color of smalt was discovered in the first half of the eighteenth ... http://www.webexhibits.org/pigments/indiv/history/coblue.html · 11.5k |
Pigments through the Ages - History - Cobalt yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt yellow Cobalt yellow / ko • bawlt yel • low / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details History of Cobalt yellow: Although little is recorded on the history of cobalt yellow (or Aureolin), all sources cited credit the discovery of this potassium and cobalt compound to N. W. Fischer in Breslau in 1848. Gettens and Stout cite J. G. Bearn (The Chemistry of Paints, Pigments and ... http://www.webexhibits.org/pigments/indiv/history/coyellow.html · 10.6k |
Pigments through the Ages - Manufacture Recipes - Cobalt yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt yellow Cobalt yellow / ko • bawlt yel • low / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details How Cobalt yellow is made: Artificial variety of pigment Reaction of cobaltous salts with acetic acid and subsequent mixing with concentrated solution of potassium nitrite. In the lab Materials needed: Cobalt(II)-chloride (CoCl2 · 6H2O), potassium nitrite (KNO2), acetic acid Safety (MSDSs ... http://www.webexhibits.org/pigments/indiv/recipe/coyellow.html · 15.6k |
Pigments through the Ages - Manufacture Recipes - Cobalt green Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt green Cobalt green / ko • bawlt green / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details How Cobalt green is made: Artificial variety of pigment Calcining of cobalt(II)-chloride and zinc(II)-oxide at medium temperatures. In the lab Materials needed: CoCl2 · 6H2O (cobalt(II)-chloride), zinc(II) oxide Safety (MSDSs): cobalt(II) chloride (at Fisher Scientific) Method: 1 g of cobalt( ... http://www.webexhibits.org/pigments/indiv/recipe/cogreen.html · 15.1k |
Pigments through the Ages - Overview - Cobalt green Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Cobalt green Cobalt green / ko • bawlt green / Jump to pigment Azurite Bone black Carbon black Carmine Cadmium yellow/red Cerulean Blue Cobalt blue Cobalt green Cobalt violet Cobalt yellow Chrome orange Chrome yellow Copper resinate Egyptian blue Emerald green Green earth Indian yellow Indigo Lead-tin yellow Lead white Lemon yellow Lime white Madder Malachite Naples yellow Orpiment Prussian blue Realgar Red lead Red ochre Smalt Titanium white Ultramarine Umber Van Dyke brown Verdigris Vermilion Viridian Yellow ochre Zinc white font size: a a a Overview History of use Making the pigment Technical details Painted swatch of Cobalt green. Brief description of Cobalt green: It's a green cobalt-oxide-zinc-oxide, semi-transparent of limited hiding power discovered by Rinmann in 1780. Due to its permanence it can be used in all painting techniques. The poor tinting strength and high cost of cobalt green ... http://www.webexhibits.org/pigments/indiv/overview/cogreen.html · 16.0k |
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