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Pigments through the Ages - Overview - 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 Painted swatch of Cobalt yellow. Brief description of Cobalt yellow: An expensive yellow that was briefly in vogue. It is of very pure yellow color and is lightfast but has only fair hiding power. Introduced as a pigment in 1852, it replaced an earlier pigment called Gamboge, an Asian yellow ... http://www.webexhibits.org/pigments/indiv/overview/coyellow.html · 15.0k |
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 - Technical Information - 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 About the chemical structure: Chemical name: potassium cobaltinitrite Formula: K3[Co(NO2)6] · H2O Refractive index: n/a Color: Color Index (C.I.) PY 40 How can you identify Cobalt yellow? Imaging: UVF: no IRFC: blue OM: at high magnification, tiny crystals and crystalline clusters ... http://www.webexhibits.org/pigments/indiv/technical/coyellow.html · 15.3k |
Pigments through the Ages - Overview - Chrome yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Chrome yellow Chrome yellow / krome 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 Painted swatch of Chrome yellow. Brief description of Chrome yellow: Relatively inexpensive yellow pigment with high covering power but with only fair lightfastness and chemical stability. The chrome colors were in use by 1816 but on a limited basis. Because the pigment tends to oxidize and darken ... http://www.webexhibits.org/pigments/indiv/overview/cryellow.html · 15.3k |
Pigments through the Ages - Manufacture Recipes - Yellow ochre Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Yellow ochre Yellow ochre / oak • ur / 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 Yellow ochre is made: Origin: artificial Natural mineral: Red and yellow ochre pigments abound at the surface in Minas Gerais, Brazil. Pigments like these were readily made into paints by prehistoric peoples (such as the nearby Santana do Riacho, Lago a Santa) who would then paint with their fingers ... http://www.webexhibits.org/pigments/indiv/recipe/yellowochre.html · 15.6k |
Pigments through the Ages - Manufacture Recipes - Chrome yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Chrome yellow Chrome yellow / krome 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 Chrome yellow is made: Origin: artificial identical with the rare mineral crocoite (at Mineralogy Database) Chrome yellow is artificially prepared, but is identical to the rare mineral: crocoite Artificial variety of pigment Precipitation of neutral solutions of lead salts with chromate or ... http://www.webexhibits.org/pigments/indiv/recipe/cryellow.html · 14.7k |
Pigments through the Ages - History - Chrome yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Chrome yellow Chrome yellow / krome 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 Chrome yellow: Chromium was discovered as a Siberian mineral, called crocoite in the eighteenth century. The mineral is deep orange, a natural form of lead chromate. It was analysed in the late 1790s by the eminent French chemist Nicolas Louis Vauquelin, who identified the new element ... http://www.webexhibits.org/pigments/indiv/history/cryellow.html · 10.4k |
Pigments through the Ages - Overview - Yellow ochre Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Yellow ochre Yellow ochre / oak • ur / 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 Yellow ochre. Brief description of Yellow ochre: Earthtones from cream to brown. Yellow ochre is a natural mineral consisting of silica and clay owing its color to an iron oxyhydroxide mineral, goethite. It is found throughout the world, in many shades, in hues from yellow to brown. The ... http://www.webexhibits.org/pigments/indiv/overview/yellowochre.html · 15.5k |
Pigments through the Ages - Manufacture Recipes - Naples yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Naples yellow Naples yellow / nae pulls 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 Naples yellow is made: Origin: artificial identical with the mineral bindheimite (at Mineralogy Database). This natural minerals though known in nature was not used for pigment. Natural mineral: bindheimite Artificial variety of pigment Calcination of a lead compound (oxide, nitrate or ... http://www.webexhibits.org/pigments/indiv/recipe/naplesyellow.html · 15.2k |
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