Old Holland Classic Oil Color - Cobalt (Aureolin) Yellow Lake (CL), 125 ml

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

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
- Description:
- Classic Oil Color
- Color:
- Cobalt (Aureolin) Yellow Lake
- Size:
- 125 ml (4.2 oz)
- No.
- 119
- Mfg #:
- 12119
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: 8715046121191
ASIN #: B00A6VVI68