Old Holland Classic Oil Color - Ruby Lake, 125 ml tube

Pigment Information

This color contains the following pigments:

PR209-Quinacridone Red

PR168-Indanthren Brilliant Orange

Pigment Name

PR209-Quinacridone Red

Pigment Type

organic, quinacridone

Chemical Formula

Properties

Quinacridone Red is a bright, clean red pigment with average drying time. Quinacridone pigments have relatively low tinting strength in general. For this reason, quinacridone colors are often expensive, because more pigment is required in the formulation.

Permanence

Quinacridone Red has excellent permanence and lightfastness.

Toxicity

Quinacridone Red has no known acute hazards. Overexposure to quinacridone pigments may cause skin irritation. Quinicridone pigments contain a compound found to be a skin, eye, and respiratory irritant.

History

Although quinacridone compounds became known in the late 19th century, methods of manufacturing so as to make them practical for use as commercial pigments did not begin until the 1950s. Quinacridone pigments were first developed as coatings for the automotive industry, but were quickly adopted by artists.

Pigment Name

PR168-Indanthren Brilliant Orange

Pigment Type

organic, anthraquinone

Chemical Formula

Properties

Indanthren Brilliant Orange is insoluble in water.

Permanence

The lightfastness of anthraquinone vat dyes is consdered to be good, and may be improved upon by the use of protective coatings to avoid exposure of the dye to oxygen.

Toxicity

No information is available.

History

Indanthren Brilliant Orange has been used as a vat dye for textiles.