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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 - Technical Information - Lead-tin yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Lead-tin yellow Lead-tin yellow / led tin 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: lead stannate (Type I) lead tin oxide silicate (Type II) Formula: Pb2SnO4 (Type I) Pb(Sn,Si)O3 (Type II) Crystal system: Lead tin yellow I: tetragonal; Lead tin yellow II: cubic pyrochlore Refractive index: above 2 Color: Color Index (C.I ... http://www.webexhibits.org/pigments/indiv/technical/leadtinyellow.html · 16.1k |
Pigments through the Ages - Technical Information - 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 About the chemical structure: Chemical name: Iron oxyhydroxide Formula: FeO(OH)) Refractive index: n/a Color: Color Index (C.I.) PY 43 155 How can you identify Yellow ochre? Imaging: UVF: no IRFC: blue OM: at high magnification, tiny crystals and crystalline clusters appear. Analytics: It's ... http://www.webexhibits.org/pigments/indiv/technical/yellowochre.html · 15.3k |
Pigments through the Ages - Technical Information - 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 About the chemical structure: Chemical name: lead(II)-chromate Formula: PbCrO4 Crystal system: Monoclinic - Prismatic (at Mineralogy Database) Refractive index: alpha = 2.31, beta = 2.37, gamma = 2.66 Color: Color Index (C.I.) PY 34 How can you identify Chrome yellow? Imaging: OM: the ... http://www.webexhibits.org/pigments/indiv/technical/cryellow.html · 16.2k |
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 - Technical Information - Lead-tin yellow Home Background Purple Blue Green Yellow Orange Red White Brown Black About www.webexhibits.org/pigments » Lead-tin yellow Lead-tin yellow / led tin 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 white Lemon yellow Lime white Madder Malachite Minium Naples yellow Orpiment Lead-tin yellow Prussian blue Realgar 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 A painted swatch of Lead-tin yellow: About the chemical structure: Chemical name: lead stannate (Type I) lead tin oxide silicate (Type II) Formula: Pb2SnO4 (Type I) Pb(Sn,Si)O3 (Type II) Crystal system: Lead tin yellow I: tetragonal; Lead tin yellow II: cubic pyrochlore Refractive index: above 2 How ... http://www.webexhibits.org/pigments/indiv/technical/pbsnyellow.html · 15.5k |
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 - 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 - Technical Information - Lemon yellow Home Introduction Choose a pigment Browse colors Time periods Make paintings Look closer About www.webexhibits.org/pigments » Lemon yellow Lemon yellow / le • mon 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 A painted swatch of Lemon yellow: n/a About the chemical structure: Chemical name: barium chromate or strontium chromate or mixture of lead chromate + lead sulphate Formula: BaCrO4 (barium chromate) Crystal system: rhombic Refractive index: n/a Color: Color Index (C.I.) PY 35 How can ... http://www.webexhibits.org/pigments/indiv/technical/lemonyellow.html · 15.3k |
Pigments through the Ages - Technical Information - 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 About the chemical structure: Chemical name: Lead(II)-antimonate Formula: Pb(SbO3)2 or Pb(SbO4)2 Crystal system: Bindheimite: Isometric - Gyroidal (at Mineralogy Database) Refractive index: 2.01 - 2.28 Color: Color Index (C.I.) PY 41 How can you identify Naples yellow? Imaging: IRFC ... http://www.webexhibits.org/pigments/indiv/technical/naplesyellow.html · 16.2k |
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