A warm reddish brown which is capable of occurring in a variety of shades due to slight differences in its formulation. Artiscreation has many resources on this pigment. Zinc Iron Chromite Brown is said to have excellent lightfastness.
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Zinc Iron Chromite Brown
PBr33
Alternate Names
Chromium Iron Zinc Brown Spinel
Mineral Brown
Pigment Description
Resources
PBr33 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.com
Information about PBr33 from Bruce MacEvoy, Handprint Guide to Watercolors,
Stats
Transparency
Opaque
Toxicity
Thought to be category of lesser concern, but possibly Hazardous
Possible hazard. Monona Rossol comments in regard to Spinels (which include a number of pigments) that "Their solubility in body fluids has not been studied and it should be assumed that they release metals." More research needs to be done, so there could be some potential unstudied hazards here (as with most pigments). Her work also contains information on working with chrome, zinc and iron in pigments. Please consult the proper health and safety experts as we are not toxicologists. Treat all pigments and paints with studio safety protocols.
Oil Content
Low to Moderate
about 20-22 g/100g
Particle Size
Very Fine
Chemical Name
Zinc Iron Chromite Brown Spinel
Dry Pigments listing PBr33
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