Due to differences in users’ monitors, the colors presented are an approximation of the true color.
PB28-Cobalt Blue
PB36-Cobalt Chromite Blue Green Spinel
PB28-Cobalt Blue
inorganic
cobalt(II) oxide + aluminum oxide
CoO + Al2O3
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.
Cobalt blue is absolutely lightfast and extraordinarily stable. The stability of cobalt salts at high temperatures make them the standard for blues used in ceramics and glassware.
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.
PB36-Cobalt Chromite Blue Green Spinel
inorganic
Oxides of Cobalt and Chromium
Co(Al,Cr)2O4
Cobalt Chromite Blue is an opaque pigment with moderately low tinting strength.
Cobalt salts have excellent lightfastness and temperature stability.
UPC Code: 717304060523
ASIN #: B003MREUCW