
Product details
- Size
- 15 ml
- Blick SKU
- 01706-3700
About this product range
These artist grade watercolors continue the Blockx family legacy that began in 1865. They are made using the same processes developed many years ago.
Only the finest ingredients go into the manufacture of Blockx watercolors. Rare, tough pigments are ground slowly and repeatedly on stone mills to achieve the optimum particle size, and to eliminate overheating and iron pollution. The pigments are then blended with pure, light gum Arabic, honey made from selected flowers, and chemically pure glycerin and water.
The result is a variety of stable, transparent colors with wonderful working properties.
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.
Pyrrole Rubine
- Pigment code
- PR264
- Type
- organic, aminoanthroquinone
- Chemical name
- 1,4-diketo-3,6-di(4'-tertiary butyl phenyl)-2,5-dihydro pyrrolo[3,4-c]pyrrole
- Properties
- This bluish red transparent pigment has high tinting strength. Diketo pyrrolo pyrrole pigments are noteworthy for their light stability, excellent weatherability, and outstanding heat stability.
- Permanence
- Pyrrole Rubine has excellent permanence and lightfastness for an organic pigment in its color range.
- Toxicity
- Pyrrole pigments are considered to be non-toxic.
- History
- The Pyrrole group of synthetic organic pigments was developed in the 1980s. Pyrrole Rubine was first manufactured by Ciba Specialty Chemicals under the trade name Irgazine Ruby. Although not a perfect match for alizarin crimson, Pyrrole Rubine is one of several new pigments that has helped to close a traditional gap in the gamut of artist pigments, the lack of lightfast and transparent colors in the red/blue and red/violet parts of the spectrum.
- Description
- Irgazine Ruby
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