Old Holland Classic Oil Color - Cobalt Green Deep, 225 ml tube
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Product Details
- Color:
- Cobalt Green Deep
- Description:
- Classic Oil Color
- Size:
- 225 ml (7.6 oz)
- No.
- 267
Pigment Information
This color contains the following pigments:
PG26-Cobalt Green Deep
PB36-Cobalt Chromite Blue Green Spinel
Pigment Name
PG26-Cobalt Green Deep
Pigment Type
inorganic
Chemical Name
Cobalt chromium oxide
Chemical Formula
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.
Toxicity
Cobalt chromium oxide is slightly toxic, and is a possible carcinogen.
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.
Pigment Name
PB36-Cobalt Chromite Blue Green Spinel
Pigment Type
inorganic
Chemical Name
Oxides of Cobalt and Chromium
Chemical Formula
Co(Al,Cr)2O4
Properties
Cobalt Chromite Blue is an opaque pigment with moderately low tinting strength.
Permanence
Cobalt salts have excellent lightfastness and temperature stability.
Toxicity
Cobalt salts are toxic when ingested or inhaled, and slightly toxic on contact with the skin. Evidence of Chromium(III) carcinogenicity is inconclusive. Chromium(III) salts appear in greenish pigments.