About the chemical structure:
|Formula:||CoO · n SnO2|
|Color Index (C.I.)||PB 35|
How can you identify Cerulean blue?
OM: microscopically, its particles are fine, rounded and uniform.
It can be identified by Raman.
Raman spectra: University College London;
Usage and handling:
Degradation processes: it was not recommended for use in watercolor painting because of chalkiness in washes. In oil, it kept its color better than any other blue.
moderately toxic. May cause sensitization by skin contact.
MSDS: Winsor & Newton
The Chemistry of Paints and Painting, Sir arthur H. Church, fourth edition, SEELEY, SERVICE & CO. LIMITED 1915, p 235-236
(intro) - Azurite - Cerulean Blue - Cobalt blue - Egyptian blue - Prussian blue - Smalt - Ultramarine