Cobalt Yellow (Aureolin) Watercolor Paint, Size: Half Pan 1.5 Ml

SKU: NAP-850-309HP
Unit Price
US$ 7.16
US$ 7.16
US$ 7.121%
US$ 7.091%
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Processing time
Usually ships the next business day.
Pigment type
Inorganic, Synthetic

Rublev Colours Cobalt Yellow (commonly called aureolin) is a potassium cobalt nitrite. The compound was discovered in 1831 but not introduced as a pigment until after 1851. It is an intense yellow that has high tinting strength and low opacity, popular as a watercolor. In watercolors, cobalt yellow is a transparent, lightly staining, intense yellow.

Color Information
Single Pigment: Cobalt Yellow (Aureolin)
Binder: Gum Arabic
Color Information
Color: Yellow
Color Index: Pigment Yellow 40 (77357)
Chemical Name: Hydrated Tripotassium Hexanitrocobalt(II)
Chemical Formula: K3(Co(NO2)6).nH2O
CAS: 13782-01-9
ASTM Lightfastness: II
Opacity: Transparent
Tinting Strength: High
Staining: Low
Granulating: Low

For a detailed explanation of the terms in the table above, please visit .


Note: Some separation of pigment and medium may occur in Rublev Colours Watercolors and is a natural process when no stabilizers are added to paint to prevent this from occurring.

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This product is shipped from our supplier's warehouse in Willits, CA, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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