Pebeo Studio Gouache - Vermillion, 100 ml Tube

Pigment Information

This color contains the following pigments:

PR4-Permanent Red

PR2-Permanent Red 2R

Pigment Name

PR4-Permanent Red

Pigment Type

organic, monoazo

Chemical Formula

Properties

Pigment PR4 is an opaque, bright yellowish red pigment with high tinting strength.

Permanence

Pigment PR4 has good lightfastness, but newer red pigments are considered more permanent and reliable.

Toxicity

Known also as D&C Red No 36, PR4 is used in cosmetic products such as lipsticks. It has been tested for carcinogenic and mutagenic effects in laboratory rats.

History

Because it is inexpensive and has a long history of use in cosmetic products, Permanent Red PR4 is widely used in artist materials where safety is more important than archival preservation, as in children's art materials.

Pigment Name

PR2-Permanent Red 2R

Pigment Type

organic, monoazo

Chemical Formula

Properties

Permanence

Toxicity

History

A Naphthol A.S. pigment, Pigment Red PR2 has been used in printing inks, textiles, packaging, and plastics.