Winsor & Newton Artists' Oil Color - Cobalt Green, 37 ml tube

Pigment Information

This color contains the following pigments:

PG50-Cobalt Green

PG26-Cobalt Green Deep

Pigment Name

PG50-Cobalt Green

Pigment Type

inorganic

Chemical Name

cobalt titanium oxide

Chemical Formula

Co2TiO4

Properties

Cobalt Titanium Oxide is a low intensity color with a weak tinting strength, similar to Cobalt Blue. It has an average to fast drying time.

Permanence

Cobalt Green has excellent permanence and lightfastness.

History

Since ancient times, smalt blue has been used to color glass and ceramics. Cobalt salts, which give smalt its characteristic blue color, were identified in the 18th century. Techniques for manufacturing various cobalt salts, offering a range of blues and greens, were developed in the 19th century.

Pigment Name

PG26-Cobalt Green Deep

Pigment Type

inorganic

Chemical Name

Cobalt chromium oxide

Properties

This pigment offers a deep but dull and opaque tone of Cobalt Green. It has moderate covering power, but low tinting strength. It is primarily for use on its own, or for mixing with other cobalt colors. It is an alternative to cobalt(II) zinc oxide, another form of Cobalt Green.

Permanence

Cobalt pigments are absolutely lightfast.

History

Cobalt chromium oxide is an alternative Cobalt Green to the better known cobalt zinc oxide. Both pigments were used by landscape artists before phthalocyanine-based pigments became widely available in the 20th century.