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R&F Encaustic Paint Block - Cobalt Green Light, 104 ml block

Item #:01101-7930
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Cobalt Green Light
Cobalt Green Light

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WARNING: CANCER AND REPRODUCTIVE HARM -- WWW.P65WARNINGS.CA.GOV

Product Details

Color:
Cobalt Green Light
Description:
Encaustic Paint Block
Size:
104 ml
Mfg #:
1162

Pigment Information

This color contains the following pigments:

PY40-Cobalt Yellow

PB36-Cobalt Chromite Blue Green Spinel


Pigment Name

PY40-Cobalt Yellow

Pigment Type

inorganic

Chemical Name

cobalt potassium nitrite

Chemical Formula

K3[Co(NO2)6] • H2O or CoK3N6O12

Properties

Cobalt Yellow is an expensive, transparent, very pure yellow with only fair hiding power. It is reliable in watercolor and makes particularly good tints. However, it must be carefully manufactured in oil form, or it can brown. Cobalt Yellow is known for good mixing quality with all other pigments, and it is useful in glazes and for tinting.

Permanence

Cobalt Yellow has good permanence and lightfastness, and it can withstand strong sunlight.

Toxicity

Cobalt Yellow is highly toxic by inhalation or ingestion. The ingestion of this pigment has caused cyanosis (low oxygen levels in the blood) due to methemoglobinemia.

History

Cobalt comes from the Middle High German word kobolt, an underground goblin, because miners thought cobalt harmed silver ores. The discovery of the potassium and cobalt compound used to make Cobalt Yellow is credited to N.W. Fischer in Breslau in 1848. It was not introduced as an artists’ pigment until 4 years later, by Saint-Evre in Paris. During the previous century, it was considered the only color that could reasonably replace Indian Yellow.


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.

History


Safety Data Sheet

UPC Code: 836943001626

ASIN #: B005RW0894