R&F Pigment Stick - Phthalo Green, 38 ml
Phthalo Green has an astounding dynamic range and is profound. It can look blacker than black in line work. The vivid undertone can be a bit harsh. It is an excellent glaze colour.
- Pigment Composition: PG7-Phthalo Green
- Dimension: 38 ml. stick measuring 5" x 3/4" diameter
- Paint Lines: Encaustic Pigment Stick
- Opacity: Transparent
- Pigment Stick Drying Rate: Medium
- Classification: Synthetic Inorganic
- Chemical Composition: Chlorinated copper phthalocyanine
- Safety Information: Conforms to ASTM D-4236
Pigment Name: PG7 Phthalo Green
Classification: Synthetic Organic
Chemical Composition: Polychlorinated copper (II) phthalocyanine
Properties
Phthalo Green is a transparent, cool, bright, high-intensity colour used in oil and acrylics. It comes from a Phthalocyanine Blue pigment where most hydrogen atoms have been replaced with chlorine, forming highly stable molecules. It has pigment properties and permanence similar to Phthalo Blue. It is slow drying and an excellent base colour for mixing a range of bright greens. Phthalo Green is a beautiful alternative to Viridian because it is intense, mixes well, and can emphasize mineral colours in various tints. However, its tinting strength is very high, so it can overpower other colours. 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. 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 Green has no significant hazards but contained PCBs (polychlorinated biphenyls) until 1982.
History
This bright blue-green was developed in 1935 and has been used since 1938.
