R&F Pigment Stick - Viridian, 38 ml
Emerald undertone. It is softer, slightly yellower, and somewhat less transparent than Phthalo. It is a beautiful glaze colour. They are also known as Vert Emeraude and Guignet’s Green.
- Pigment Composition: PG18-Viridian
- Dimension: 38 ml. stick measuring 5" x 3/4" diameter
- Paint Lines: Encaustic Pigment Stick
- Opacity: Semi-Transparent
- Pigment Stick Drying Rate: Fast
- Classification: Synthetic Inorganic
- Chemical Composition: Hydrated Chromium sesquioxide
- Safety Information: Conforms to ASTM D-4236
- Safety Warnings: This product contains cadmium, a chemical known to the State of California to cause cancer.
Pigment Name: PG18 Viridian
Classification: Synthetic Inorganic
Chemical Composition: Chromium (III)-oxide dehydrate
Properties
Viridian is the standard green. It is stable, robust, and cold, with an emerald green undertone. It has a transparent hue, good tinting strength, a dark masstone that can be almost black at full power, and a slow drying time in oil form. Viridian is commonly replaced by the darker, more saturated, and staining Phthalo Greens, but its properties make it a necessary part of an experienced landscape painter's palette.
Permanence
Viridian has excellent permanence, except in high-temperature work, and is highly valued as a glazing colour.
Toxicity
Viridian is slightly toxic.
History
Viridian’s name comes from the Latin Viridis, meaning green. The process for manufacturing Viridian, or Transparent Oxide of Chromium, was patented by Guignet in Paris in 1859. However, it was discovered by Pannetier and Binet in 1838. Viridian replaced Verdigris, which was reactive and unstable, and Emerald Green, a poisonous copper aceto-arsenite used as a rat poison in the sewers of Paris.
