Looses some lightfastness in tints, but otherwise decent lightfastness. This color is used in traffic paint, and Artiscreation mentions that it is possibly a good substitute for some chrome yellows (we would guess these are the warmer yellow-orange ones he is referencing). Rare as a single pigment oil, but found in a number of blends.
This color may metabolize to a potential carcinogen and could cause methemoglobinemia, see Monona Rossol's writing for more.
PY75 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.
Thought to be excellent
Estimated to be Excellent (ASTM I Equivalency)
Semi-Transparent
Thought to be category of lesser concern
Treat all pigments and paints with studio safety protocols.
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