Chrome Red, Molybdate Orange

PR104

Alternate Names

Chrome Orange

American Vermilion

Pigment Description

Currently made by Rublev as an orange, this is a bright orange that is also toxic -extremely toxic. It contains Chromium VI. Please see the Artist's Guide to Health and Safety for more information about health issues associated with Chrome and Lead. The author's updated work can be found through her site.

This color has mostly been discontinued, but Rublev's version is stated to have "silicate-coated (encapsulated) grade with very good lightfastness." However it is toxic and can easily be substituted.

Resources

PR104 pigment data from David G. Myers, The Color of Art Pigment Database, Artiscreation.comCAMEO Materials Database: Conservation & Art Materials Encyclopedia Online, Museum of Fine Arts Boston. (n.d., accessed June 2025). Molybdate Orange. Museum of Fine Arts Boston.

Stats

Lightfastness

Very Good, unrated

The only source we could find on its lightfastness was from Rublev, who described their particular pigment as "very good", however this may vary depending on the supplier. Artiscreation lists ASTM II.

Transparency

Opaque

Toxicity

Toxic

Artiscreation lists this as Hazardous, "Hazardous, use appropriate precautions for handling toxic substances, especially if working with the dry powder; Do not ingest; Avoid dust & spray." MFA Cameo lists it as a carcinogen, mutigen and more, see their information as well as manufacturer SDS as well. We are not toxicologists, so please consult the relevant experts.

Tinting

High

Dry Time

Medium

Oil Content

Low

Some sources list it as moderately low by volume. By weight, Artiscreation lists 14-22 g/100g of oil.

Chemical Name

Molybdated Lead Chromate, Molybdate Chrome Red, or lead chromate and lead molybdate

Dry Pigments listing PR104

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