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Naphthol Red AS-D

PR12

Alternate Name

Permanent Bordeaux TRR

Pigment Description

Though it is said to have good but not excellent lightfastness, it appears to sink to an ASTM III (Fair, but too low for our standards for artists' use) in gouache. If you use this pigment in other mediums it may be worth it to do your own lightfastness testing.

Resources

PR12 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com

Stats

Lightfastness

Sources vary

Some sources list very good but not excellent, but in gouache it is on the edge of being too low for artists' use (ASTM III).

Toxicity

Lower Concern

Low information available, listed as low concern on artiscreation.com.

Chemical Name

Monoazo: 3-hyrdroxy-2-naphthanilide

with PR12 (Naphthol Red AS-D)

No single-pigment Oil found with PR12

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