M. Graham Artists' Gouache - Cobalt Blue, 15 ml tube

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Description

  • Cobalt blue is a semitransparent pigment with low to moderate tinting strength.
  • When it dries, it appears lighter and less saturated.
  • Pigment particles are large and grainy.
  • Differences in how the pigment is ground and mixed lead to considerable differences in its performance among various manufacturers.
  • Since ancient times, smalt blue has been used to color glass and ceramics.
  • Cobalt salts, which give smalt its characteristic blue color, were identified in the 18th century.
  • Techniques for manufacturing Cobalt Blue, a chemically pure salt of cobalt and aluminum oxide, were developed in 1802.

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