Tri-Art Art Noise Permanent Acrylic Gouache - Transparent Red, 120 ml, Bottle

Item #:01640-3731
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Tri-Art Art Noise Permanent Acrylic Gouache - Transparent Red, 120 ml, Bottle with swatch

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Product Details

Permanent Acrylic Gouache
Transparent Red
120 ml (4 oz)


Pigment Information

This color contains the following pigments:

PR57-Lithol Rubine

Pigment Name

PR57-Lithol Rubine

Pigment Type

organic, monoazo

Chemical Formula

C18H12N2O6, sodium salt


Lithol Rubine is a deep transparent red dye, generally slightly bluish, that is laked as a salt with sodium or calcium to form a pigment.  PR57 is the sodium salt, and has a more bluish tone. PR57:1 is the calcium salt, and is the most widely used. Lithol Rubine makes clean pinks when tinted. Sources vary greatly in hue and transparency. Lithol Rubine has high tinting strength.


Lightfastness is considered only fair to good. Superior products are available when lightfastness is paramount. Where greater lightfastness is needed in process color printing, the more expensive pigment PR184, a Naphthol AS pigment,  is often substituted for Lithol Rubine.


Lithol Rubine is not considered toxic. It is used in food, drugs, and cosmetics, such as lipstick. It can be used in art materials intended for children.


Lithol Rubine pigments (especially the calcium salt PR57:1) are widely used in inks, paints, plastics, and textiles. Lithol Rubine is widely used as magenta in process color printing.

Safety Data Sheet

UPC Code: 626309320917