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    • Sennelier Watercolour No. 807 Phthalocyanine Green Deep Series 1

      Sennelier Watercolour No. 807 Phthalocyanine Green Deep Series 1

      C$14.77

      Sennelier French Artists' Watercolors offer a bright and lively palette in the tradition of French Impressionists. Featuring brilliant colors, including 50 single pigment colors (many unique to Sennelier), the colors evoke the beauty of Southern France.

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        PRODUCT DESCRIPTION

        Pigment Information

        This color contains the following pigments:
        PG7-Phthalo Green
        PB15:3-Phthalo Blue
        Pigment Name
        PG7-Phthalo Green
        Pigment Type
        organic
        Chemical Name
        polychlorinated copper(II) phthalocyanine
        Chemical Formula
        C32H3Cl13CuN8 to C32HCl15CuN8 or C32H16CuN8Cl15 (PG7) or C32Br6Cl10CuN8 (PG36)
        Properties
        Phthalo Green is a transparent, cool, bright, high intensity color used in oil and acrylics. It comes from a Phthalocyanine Blue pigment where most of the hydrogen atoms have been replaced with chlorine, forming highly stable molecules.  It has similar pigment properties and permanence to Phthalo Blue. It is slow drying and an excellent base color for mixing a range of bright greens. Phthalo Green is considered a very good alternative to Viridian because it is intense and mixes well and can be used to emphasize mineral colors in various tints. However, its tinting strength is very high, so it can overpower other colors.  This pigment most closely resembles the discontinued and toxic Verdigris.
        Permanence
        Phthalo Greens are completely lightfast and resistant to alkali, acids, solvents, heat, and ultraviolet radiation. 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.
        Toxicity
        Phthalo Green has no significant hazards, but it contained PCBs (polychlorinated biphenyls) until 1982.
        History
        This bright blue-green was developed in 1935 and has been in use since 1938.
        Pigment Name
        PB15:3-Phthalo Blue
        Pigment Type
        organic
        Chemical Name
        beta copper phthalocyanine
        Chemical Formula
        C32H16CuN8
        Properties
        Phthalo Blue PB15:3 is a structural variant of Phthalo Blue PB15 that produces more greenish tones.
        Permanence
        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.
        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 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.

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