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Phthalocyanine Green G

Phthalocyanine green G, which has many commercial names, is a synthetic green pigment from the group of phthalocyanine dyes, a complex of copper(II) with chlorinated phthalocyanine. It is a soft green powder, which is insoluble in water. It is a bright, high intensity colour used in oil and acrylic based artist's paints, and in other applications.

Synthesis, properties, and structure
Phthalocyanine green is derived from phthalocyanine blue by chlorination in the presence of aluminium trichloride. The stoichiometry for the complete chlorination is shown: ==Uses==
Uses
Due to its stability, phthalo green is used in inks, oil paint, coatings, and many plastics. In application it is transparent. Being insoluble, it has no tendency to migrate in the material. It is a standard pigment used in printing ink and packaging industry. It is also legal in all cosmetics except those used around the eyes. It is used in some tattoos. ==Related compounds==
Related compounds
Copper phthalocyanine green 36 is a variant where some of the chlorine atoms are replaced with bromine. Bromination is less efficient than chlorination. Consequently, the degree of bromination is lower. ==See also==
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