Da Vinci Artists Permanent Watercolor - Prussian Blue, 37 ml tube
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$16.20
Blick Art Materials · recorded Oct 21, 2026, 6:24 AM UTC
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Product details
- Size
- 37 ml
- Blick SKU
- 00371-5223
About this product range
Da Vinci takes the name of their company very seriously. Their paints are exciting, intense, and rated among the best in the world for quality. The paints are permanent, with the highest tinting strength and pigment concentration available. However, they are especially soft, with a creamy consistency for smooth, easy dispersion with water. Available in both 15 ml (.51 oz) and 37 ml (1.25 oz) tubes. Da Vinci paints conform to artist's quality standard ASTM D-5067, and to safety standard ASTM D-4236.
Pigment information
General reference notes about pigments can describe other media (such as oil). They do not verify this product’s exact formulation or behavior.
Prussian Blue
- Pigment code
- PB27
- Type
- inorganic
- Chemical name
- ferric ferrocyanide/iron(III)-hexacyanoferrate(II)
- Chemical formula
- Fe7(CN)18(H2O)x or C6FeN6H4N
- Properties
- Prussian Blue is a semi-transparent, deep cyan-blue with a greenish undertone and a very high tinting strength unequaled by most pigments. It is similar to Phthalo Blue unless mixed with white, when it gives up intensity and becomes smoky. It can behave erratically and less reliably in oil and watercolor form depending on its manufacture. For permanent painting Phthalo Blue is considered a more reliable choice.
- Permanence
- Prussian Blue is lightfast and permanent in all techniques except for fresco. When mixed with Zinc White in watercolor or tempera form, it fades upon exposure to light and completely regains its chromatic strength in the dark. Modern manufacturing techniques have made this tendency less of an issue in recent years
- Toxicity
- Prussian Blue is moderately toxic if ingested. It will emit toxic hydrogen cyanide gas if heated, exposed to ultraviolet radiation, or treated with acid.
- History
- "The first of the modern pigments," Prussian Blue is the first artificial pigment with a known history. It was discovered by accident in 1704 by the Berlin color maker Heinrich Diesbach, who was trying to create a pigment with a red hue by mixing iron sulfate and potash. The potash Diesbach purchased from a local laboratory had been contaminated by animal oil and blood during previous experimentation. The resulting mixture yielded a very pale red that changed to purple and then deep blue when he tried to concentrate it. Since previous blue pigments came from lapis lazuli, an expensive stone, Diesbach’s discovery was extremely important for artists of the time.
- Description
- Berlin Blue, Bronze Blue, Iron Blue, Paris Blue, Paste Blue. Celestial Blue, Monthier Blue and Soluble Blue are varieties of Prussian Blue. Blue Lake is a reduced or let-down variety of Prussian Blue. Chinese Blue, Milori Blue, and Steel Blue are the three highest grades of Prussian Blue.
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