Watercolor cobalt blue spectral 3.2 ml

Finely ground, concentrated pigments and highly purified gum arabic are used in watercolors. The high degree of grinding on a ceramic paint mill produces transparent, pure and saturated colors. Watercolors mix well, are easily washed off and have high lightfastness.

Pure blue color.

All colors and paints can be divided into spectral, simple and complex (composite). SPECTRAL colors are colors that make up the visible part of the spectrum (red, orange, yellow, green, blue, blue, violet), they are also called pure colors. SIMPLE or PRIMARY are spectral colors that cannot be composed of other colors. When it comes to mixing paints, the primary ones are: red, yellow, blue. All other spectral colors can be composed of the primary ones. COMPOSITE or COMPOSITE colors are all the other variety of colors found in nature.

It is found under the following names: C.I. Pigment Blue 74, Cobalt Zinc Silicate, Cobalt Zinc Silicate Blue Phenacite, Sapphire Blue, Cobalt Blue Dark, Cobalt Blue Deep, Cobalt Blue, Sapporo, Pigment Blue 74

Chemical properties

Cobalt-zinc silicate blue phenacite (Co, Zn) 2SiO4 is obtained by calcining a mixture of cobalt oxide, zinc oxide and silicon oxides in various proportions to obtain a crystalline phenacite matrix.

CAS 68412-74-8

•Chemical description: watercolor paint, semi-dry, in a 3.2 ml cuvette

•Color index PB 74

•Alkali resistance: 5

•Lime resistance: 5

•Acid resistance: 5

•Lightfastness - 8

•Color BRIGHT blue

•Form cuvette 3.2 ml