Diarylide Yellow AAOA
One company offers this as a single pigment paint and it also finds its way into a few blends. May metabolize to a carcinogen, and may also be contaminated by PCBs. See Monona Rossol's research for more information.
PY17 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.
Various, Fair or Moderate
The older tests from the 1980s NPIRI show slight change in masstone and “appreciable” change in tints made with this pigment. For us ASTM III is too low. May range from II to III but the figures on Artiscreation are estimated.
Transparent
Previously thought to be Lower Concern, however may be hazardous. May be contaminated with toxic substances
May metabolize to a carcinogen and may be contaminated with PCBs. In her work on artist pigments, Monona Rossol wrote, “Low acute toxicity. Long term hazards unstudied. Heat & metabolism releases 3,3'-dichlorobenzidine, a known carcinogen. Contamination with PCBs likely.” Rossol’s health and safety writing may be requested via her site.
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