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Lead white is a thick, opaque, and heavy white pigment composed primarily of basic lead carbonate, 2PbCO 3 ·Pb(OH) 2, with a crystalline molecular structure. [1]: 67 [2]: 43 It was the most widely produced and used white pigment in different parts of the world from antiquity until the nineteenth century, when it was displaced by zinc white and later by titanium white.
Glidden famously employed the chemist Percy Julian in the 1930s, who was one of the first African-Americans to receive a Ph.D. in chemistry. In 1967, Glidden merged with SCM Corporation and became the Glidden-Durkee Division of that company. In less than 10 years, the division became responsible for two thirds of SCM's sales.
Lead white oil paints are still produced and in use by artists who prefer their unique handling, mixing, and structural qualities. Lead white has also shown to have extended longevity compared to zinc and titanium, which will crack much earlier. [44] Flake white has various drawbacks, including a tendency to become transparent over time.
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Chrome yellow or crocoite (PY34): lead chromate (PbCrO 4). Cobalt pigments. Aureolin or cobalt yellow (PY40): potassium cobaltinitrite (K 3 Co(NO 2) 6). Iron pigments. Yellow ochre (PY43): a naturally occurring clay of monohydrated ferric oxide (Fe 2 O 3 ·H 2 O). Lead pigments. Naples yellow (PY41). Lead-tin-yellow: PbSnO 4 or Pb(Sn,Si)O 3 ...
Possible lightness values are 15% through 90% in steps of 5% for monochromatic shades of grey (i.e. C = 0%) and 20% through 90% in steps of 10% and additionally 85% and 93%. Chroma values are also mostly confined to steps of 10% or 5%, but with some exceptions, and the maximum value varies.
Oils with an iodine number greater than 130 are considered drying, those with an iodine number of 115–130 are semi-drying, and those with an iodine number of less than 115 are non-drying. Linseed oil, the most prevalent vehicle for artists' oil paints, is a drying oil. When exposed to air, oils do not undergo an evaporation process like water ...
Glidden’s 2024 Color of the Year, Limitless, was yet another indicator that consumers were straying from neutrals like gray and off-white. The light and creamy shade introduced homeowners to ...
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