A synthetic organic material composed of chlorinated copper phthalocyanine (chlorinated phthalocyanine blue). Phthalocyanine blue was introduced as a industrial pigment in 1935 and the green derivative was first sold in 1938. Phthalocyanine green is usually adsorbed on an aluminum hydrate base to form a deep vivid green color that is used as a substitute for viridian. The permanent pigment is unaffected by light, heat, and chemicals. Phthalocyanine green is used as a colorant in inks, paints, chalks, leather, pencils, and photographs.
Synonyms and Related Terms
Pigment Green 7; CI 74260; Phtalocyaningrün (Deut.); vert de phtalocyanine (Fr.); verde de ftalocianina (Esp.); verde ftalo (It.); phtalocyanine groen (Ned.); verde de ftalocianina (Port.); phthalo green; copper phthalocyanine green; Monastral Fast Green; thalo green; Heliogen green; Windsor Green; Talens Green
Insoluble in organic solvents, water and alkalies. Slowly decomposes in strong acids.
Fine grain, rounded, translucent particles with strong birefringence; the color is unchanged with a Chelsea filter
Hazards and Safety
Suspected carcinogen, teratogen. May be contaminated with traces of PCB.
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