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Art Spectrum Artists' Soft Pastels are professional-quality soft pastels that provide the artist with colors that are pure, brilliant and intense - and remain that way. The very best pigments are selected and triple-milled at maximum concentration.
Color Swatches created using heavy to light application and were applied on 100 lb (163 gsm) drawing paper material.
beta copper phthalocyanine
Phthalo Blue PB15:3 is a structural variant of Phthalo Blue PB15 that produces more greenish tones.
Phthalo Blues are completely lightfast and stable and are permanent for all paint uses. They are currently used in inks, coatings, and many plastics due to their stability and are considered a standard pigment in printing ink and the packaging industry.
Phthalo Blues have no significant hazards, although those made before 1982 contained some PCBs (polychlorinated biphenyls).
Developed by chemists using the trade name Monastral Blue, the organic blue dyestuff now known as Phthalo Blue was presented as a pigment in November 1935 in London. Its discovery was accidental. The dark color was observed in a kettle where a dye was being made from a British dyestuff plant. The demand for such a pigment came from commercial printers who wanted a cyan to replace Prussian Blue.
Phthalo Blue Green Shade, Winsor Blue Green Shade
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Material Safety Data Sheet
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Dick Blick Art Materials®, Blick®, Blick Studio®, and Artists Pick Blick® are registered trademarks of Dick Blick Holdings Inc.
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