This site is community-supported. We may earn a commission (at no extra cost) when you buy through our links.

Back to Pigment Notebook

Cobalt Violet Light (Historical-obsolete)

Cobalt Arsenate

Alternate Names

Erythrite

Cobalt Bloom

Pigment Description

Discontinued due to toxicity. See the other modern cobalt violets instead. CAMEO notes that cobaltous arsenate "occurs in nature as cobalt bloom or erythrite."

Resources

CAMEO Materials Database: Conservation & Art Materials Encyclopedia Online, Museum of Fine Arts Boston. (Accessed June 2025). Cobalous Arsenate https://cameo.mfa.org/wiki/Cobaltous_arsenate. Museum of Fine Arts Boston.

Stats

Toxicity

Extremely Toxic

CAMEO notes that this pigment is: "Highly toxic by ingestion, inhalation, and skin contact. Not recommended for use, obsolete (other Cobalt Violets are less toxic).

Chemical Name

Cobaltous arsenate

Co₃(AsO₄)₂ - ₈H₂O

with Cobalt Arsenate (Cobalt Violet Light (Historical-obsolete))

No single-pigment Oil found with Cobalt Arsenate

DISCLAIMER: Please note that we are not experts in health and safety and we are not toxicologists, please consult the proper experts. We are not liable for any issues that may arise from the use of our website or its contents. The information contained in this site is provided without warranty or guarantee of any kind. We do not necessarily endorse any other website that are linked from our site. For any important pigment specs, please reference the manufacturer details. If you discover errors or omissions, please reach out through our contact form. Thank you.

We value your privacy and won't share your email address.

Check out Paint List on YouTube

Follow Paint List on Instagram

This is an independent paint review site for artists that is powered by affiliate links. That means that we may make commissions on purchases that you make at no extra cost to you.

* Prices are approximate, vary by retailer, and are be subject to change. Please check the retailer's website for the most up-to-date price. These prices also do not include shipping, VAT, or any other fees. But we don't paint because it's cheap, do we? No, we paint for the love of it.

Disclaimer: This website does not make any warranties or guarantees about the completeness, reliability, and accuracy of this information. Any action you take upon the information you find on this website is strictly at your own risk. We will not be liable for any losses and/or damages in connection with the use of our website.