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Holbein Vernét Superior Artists' Oil Color - Aureolin, 20 ml tube

Item #:02117-4270
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Aureolin
Aureolin

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California Proposition 65.California Proposition 65

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

CL Cautionary Label.

Products bearing the CL seal of the Art & Creative Materials Institute ("Caution Label") contain ingredients that are toxic or hazardous, but when used in properly supervised and controlled conditions, they can be enjoyed with complete safety.

Product Details

Color:
Aureolin
Mfg #:
V022
No.
V022
Size:
20 ml

Pigment Information

This color contains the following pigments:

PY40-Cobalt Yellow


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.


Safety Data Sheet

UPC Code: 4900669110224

ASIN #: B004OCFXDE