Oil Bars: Single-Pigment Colors – Synthetic Pigments
 
 
Prussian Blue Oil Bar
 
 
Joules & Joules Prussian Blue Oil Baris a derivation of our Prussian Blue oil paint. In this process, safe quantities of beeswax and carnauba wax are added to the recipe, keeping the outer membrane solid, and the oil bar creamy inside. Joules & Joules Prussian Blue is a dark, semi-transparent, highly lightfast greenish-blue with high tinting strength and moderate covering power. Its undertones are noticeably more subtle and gray-toned in comparison to Phthalo Blue's. It was the first modern color to be synthesized in a laboratory, in 1706. Greatly favored by the Impressionists as an alternative to black.
 

Pigment Classification
Synthetic Inorganic
Chemical Composition
Hydrated Iron Hexacyanoferrate - C6FeN6H6N
Color Index
PB 27
Binder
Cold-Pressed Linseed Oil, Cold-Pressed Safflower Oil, and Sun Thickened Linseed Oil
Stabilizers
Beeswax and Carnauba Wax
Transparency/Opacity
Transparent
Lightfastness
I (Excellent)
Tinting Strength
High
Drying Rate
Medium
Observations
Highly permanent to both light and oxygen. Turns to brownish if it is exposed to high temperatures or alkalis.
Toxicity
Non-toxic. Avoid contact, inhalation of pigment powder.
Material Safety Data Sheet (MSDS)
Can be accessed on the website here.
Series
2
Availability
80ml bars - 11.5 x 3.5 x 1.5 cm.