7/30/2023 0 Comments Iron chromium oxideRaw sienna (PBr7): a naturally occurring yellow-brown pigment from limonite clay.When calcined (heated) it is referred to as burnt umber and has more intense colors. Raw umber (PBr7): a natural clay pigment consisting of iron oxide, manganese oxide and aluminum oxide: Fe 2O 3 + MnO 2 + nH 2O + Si + Al 2O 3.Minium (pigment): also known as red lead, lead tetroxide, Pb 3O 4.Ĭlay earth pigments (naturally formed iron oxides).Burnt sienna (PBr7): a pigment produced by heating raw sienna.Sanguine, Caput mortuum, Indian red, Venetian red, oxide red (PR102).Cadmium red (PR108): cadmium sulfo-selenide (Cd2SSe).Realgar: As 4S 4 - a highly toxic natural pigment. Chrome orange: a now obscure pigment composed of a mixture of lead chromate and lead(II) oxide (PbCrO 4.Cadmium orange (PO20): an intermediate between cadmium red and cadmium yellow: cadmium sulfoselenide.Bismuth vanadate orange (PO83) non-toxic pigment similar to vermilion.Zinc yellow (PY36): zinc chromate ( ZnCrO 4), a highly toxic substance with anti-corrosive properties which was historically most often used to paint over metals.Lead-tin-yellow: PbSnO 4 or Pb(Sn,Si)O 3.Yellow ochre (PY43): a naturally occurring clay of monohydrated ferric oxide ( Fe 2O 3.Aureolin or cobalt yellow (PY40): potassium cobaltinitrite ( K 3Co(NO 2) 6).Chrome yellow or crocoite (PY34): lead chromate ( PbCrO 4).Cadmium yellow (PY37): cadmium sulfide (CdS), which also occurs as the mineral greenockite.Primrose yellow (PY184): bismuth vanadate ( BiVO 4).Orpiment: natural monoclinic arsenic sulfide ( As 2S 3).Green earth: also known as terre verte and Verona green ( K(AlSi 3,Si 4)O 10(OH) 2).Scheele's Green (also called Schloss green): cupric arsenite (CuHAsO 3).Malachite: cupric carbonate hydroxide (Cu 2CO 3(OH) 2).Cobalt green: also known as Rinman's green or zinc green (CoZnO 2).Viridian (PG18): hydrated chromium(III) oxide Cr 2O 3.Chrome green (PG17): anhydrous chromium(III) oxide (Cr 2O 3).Cadmium green: a light green pigment consisting of a mixture of cadmium yellow (CdS) and chrome green (Cr 2O 3).Manganese blue: barium manganate(VI) sulfate.YInMn Blue: a synthetic pigment discovered in 2009 (YIn 1− xMn xO 3).Prussian blue (PB27): a synthetic inert pigment made of iron and cyanide: C 18Fe 7N 18.Basic copper carbonate: Cu 2(OH) 2CO 3.Azurite: cupric carbonate hydroxide (Cu 3(CO 3) 2(OH) 2).Thought to be the first synthetically produced pigment. Egyptian blue: a synthetic pigment of calcium copper silicate (CaCuSi 4O 10).Cerulean blue (PB35): cobalt(II) stannate.Cobalt blue (PB28): cobalt(II) aluminate.The most important mineral component of lapis lazuli is lazurite (25% to 40%), a feldspathoid silicate mineral with the formula (Na,Ca) Persian blue: made by grinding up the mineral Lapis lazuli.Ultramarine (PB29): a synthetic or naturally occurring sulfur containing silicate mineral - Na.Purple of Cassius: Gold nanoparticles suspended in tin dioxide - Au x.Manganese violet: NH 4MnP 2O 7 (PV16) manganic ammonium pyrophosphate.Ultramarine violet: (PV15) - a synthetic or naturally occurring sulfur containing silicate mineral.The following list includes commercially or artistically important inorganic pigments of natural and synthetic origin.
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