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Blue Sennelier (399) Phthalo Blue PB15:6 is a structural variant of Phthalo Blue PB15 that produces more yellowish tones.
Item #: SV131535-399
Description: Sennelier Watercolour Blue Sennelier (399) 21 ml
Phthalo Blue PB15:6 is a structural variant of Phthalo Blue PB15 that produces more yellowish tones.
Chemical Name: epsilon copper phthalocyanine.
Permanence: Phthalo Blues are lightfast, stable, and permanent for all paint uses. Due to their stability, they are currently used in inks, coatings, and many plastics and are considered a standard pigment in printing ink and the packaging industry.
Toxicity: Phthalo Blues have no significant hazards, although those made before 1982 contained some PCBs (polychlorinated biphenyls).
History: 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 colour was observed in a kettle where a dye was made from a British dyestuff plant. The demand for such a pigment came from commercial printers who wanted a cyan to replace Prussian Blue.
Alternate Names: n/a
Size
21 ml
Brand
Sennelier
Type of Store Credit value
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