R&F Pigment Stick - Cerulean Blue, 38 ml

It is a complicated colour. It is pretty greenish, laid next to cobalt blue, yet it can take on a violet cast under fluorescent light. Its large particle size makes it a little gritty and adds to its luminosity.

• Pigment Composition: PB35-Cerulean Blue
• Dimension: 38 ml. stick measuring 5" x 3/4" diameter
• Paint Lines: Encaustic, Pigment Stick
• Opacity: Opaque
• Pigment Stick Drying Rate: Fast
• Classification: Synthetic Inorganic
• Chemical Composition: Cobalt stannate
• 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: PB35 Cerulean Blue

Classification: Synthetic Inorganic

Chemical Composition: Cobalt (II) stannate

Properties

Cerulean Blue is the standard cool blue, considered the traditional counterpart to Ultramarine, and is often used for painting atmospheric shades. It is quick-drying and retains its colour in oil paint better than any other blue. However, it tends to granulate or become chalky in watercolours. It has limited hiding power, is semi-opaque, and is easy to control. Its tinting capacity could be higher, so it can become lost when mixing.

Permanence

Cerulean Blue has excellent permanence. It is very stable and lightfast.

Toxicity

Cerulean Blue is moderately toxic if inhaled or ingested and slightly toxic if it comes into contact with skin.

History

The name Cerulean Blue comes from the Latin word caelum, meaning sky. Andreas Hopfner discovered this pigment in 1805. Still, it was not widely available until Messrs. G. Rowney Co. in England introduced it in 1860 under the name coeruleum for use in aquarelle and oil painting. It was produced by the action of heat on cobalt oxide and other metallic bases.