Lithol Bordeaux
PR63:1
Alternate Name
BON Maroon (calcium)
Pigment Description
This Monoazo crimson pigment has inadequate lightfastness (as low as 3 in tints, and really not all that much better in other categories). It is found in at least one artist oil paint line despite the poor lightfastness.
In Monona Rossol's research we noticed a note about potential serious health issues that could arise when this pigment is metabolized, as a derivative may create a carcinogen, so please consult her work.
Resources
PR63:1 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com,
Rossol, Monona. The Artist's Complete Health and Safety Guide. New York, NY : Allworth Press, 2001. The book is rather dated, updated information is available from her website.
Stats
Lightfastness
Poor
Not lightfast enough for us, as it is the low end of moderate to poor. May fall to BWS 3. 1980s era tests from the NPIRI report slight fading in masstone and appreciable fading in tints in both outdoor and indoor exposure tests.
Transparency
Semi-Opaque
Toxicity
Lower Concern
More information at artiscreation.com.Treat all pigments and paints with studio safety protocols.
Chemical Name
Monoazo salt of 2-naphtol acid
C₂₁H₁₄N₂O₆S.Ca
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