R&F Pigment Stick - Cadmium Orange, 38 ml
Cadmium Orange was the first true orange, made by mixing Cadmium Yellow with Cadmium Red. It is a pure hue with excellent opacity and low toxicity compared with its predecessors. Only the highest grades contain pure Cadmium Orange without barium mixed in it.
- Pigment Composition: PO20-Cadmium Orange
- Dimension: 38 ml. stick measuring 5" x 3/4" diameter
- Paint Lines: Encaustic, Pigment Stick
- Opacity: Opaque
- Pigment Stick Drying Rate: Medium
- Classification: Synthetic Inorganic
- Chemical Composition: c.p. cadmium sulfo-selenide
- 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: PO20 Cadmium Orange
Classification: cadmium
Chemical Composition: cadmium sulphide and cadmium selenide
Properties
Cadmium Orange was the first true orange made by mixing Cadmium Yellow with Cadmium Red. It is a pure hue with excellent opacity and low toxicity compared with its predecessors.
It also has very high hiding power. The deeper shades possess the greatest tinting strengths. Only the highest grades contain pure Cadmium Orange without barium mixed in it. Cadmium pigments have been partially replaced by azo pigments, which are similar in lightfastness to the cadmium colours, cheaper, and non-toxic.
Permanence
Cadmium Orange has excellent permanence, but like many cadmium pigments, it will fade in fresco or mural painting. The deeper varieties of this pigment are the most permanent, while paler varieties have been known to fade when exposed to sunlight.
Toxicity
Cadmium Orange is a known human carcinogen. It is highly toxic if inhaled and slightly toxic if ingested.
History
Cadmiums get their names from the Latin word cadmia, meaning zinc ore calamine, and the Greek word kadmeia, meaning Cadmean earth, first found near Thebes, the city founded by the Phoenician prince Cadmus. Metallic cadmium was discovered in 1817 by Friedrich Strohmeyer. It was used sparingly after its discovery due to the scarcity of cadmium metal.
