Sometimes Litharge and Massicot are used interchangeably but they are distinct, and the Natural Pigments site has information about their differences. Litharge and massicot are rarely used as a standalone pigments in oil and are more often used as driers. Litharge (also called the alpha form) tends to be more orange and Massicot (the beta form) is more yellow.
This substance is toxic. The Artist's Handbook highlights its toxicity and instability.
Monona Rossol's work has a section on health problems from lead pigments in the Artist's Guide to Health and Safety. Her most recent research can be found through her site. Lead is toxic.
PY46 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com
Information about PY46 from Bruce MacEvoy, Handprint Guide to Watercolors,
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.
Toxic
Artiscreation assigns this pigment a "C", meaning "\Hazardous, use appropriate precautions for handling toxic substances, especially if working with the dry powder; Do not ingest; Avoid dust & spray." There are also extremely serious hazards for pigments containing lead. We are not toxicologists so we suggest consulting third party research as well as manufacturer MSDS. Also see Monona Rossol's research available upon request here for more information on pigments with lead.
Low
Low by volume
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