Winsor & Newton Cotman Watercolor Half Pan - Prussian Blue

Item #:00337-5220
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Prussian Blue
Prussian Blue
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Product Details

Color:
Prussian Blue
Description:
Watercolor Half Pan
Size:
Half Pan

Pigment Information

This color contains the following pigments:

PB27-Antwerp Blue


Pigment Name

PB27-Antwerp Blue

Pigment Type

inorganic

Chemical Name

ferric ammonium ferrocyanide

Chemical Formula

C18Fe7N18

Properties

Antwerp Blue is a slightly warm and less saturated blue with good transparency and undertone clarity. It is a pale variety of Prussian Blue with 75% inert pigment. It has similar properties to pure Prussian Blue, but its overall performance is inferior.

Permanence

Antwerp Blue can fluctuate, fading in the light and recovering in the dark. In watercolor form, it fades when mixed with white pigment or extender. Although it has reasonably good lightfastness and permanence, it is not considered ideal for permanent painting.

Toxicity

Antwerp Blue is mildly toxic by ingestion, but is considered safe for external use. In the United States, ferric ferrocyanide is permitted as a coloring ingredient for externally applied cosmetics, but not for lipsticks or internal use. If the pigment is

History

Antwerp Blue was developed through experimentation with Prussian Blue.


Safety Data Sheet