Revised Assessment for Pigment Violet 29 (PV29) Reveals Unreasonable Risks to Workers

The U.S. Environmental Protection Agency (EPA) has announced the issuance of a revised risk evaluation for Pigment Violet 29 (PV29). The findings of this recent evaluation are significantly in contrast to the findings from the PV29 assessment the Agency released two years ago. Here we review this new evaluation and look at some of the key differences from its predecessor.

About PV29

PV29 is a dark violet (purple), odorless, organic compound. This pigment is often used as an intermediate to adjust the color and appearance of other pigments. Primarily used to color materials such as paint, ink, plastic, and rubber, it is utilized frequently in a variety of industries (automobile, carpeting, printing, and more).

Pigment Violet 29

Chemical NameAnthra[2,1,9-def:6,5,10-d’e’f’]diisoquinoline-1,3,8,10(2H,9H)-tetrone
Chemical FormulaC24H10N2O4
CAS Registry Number81-33-4

Within the environment, PV29 is a highly persistent chemical. If released into water, it does not tend to evaporate. When in the air, it does not break down in its particulate form. Additionally, it is incapable of decomposition by bacteria or other organisms.

In December 2016, PV29 was selected as one of the first ten chemicals to undergo risk evaluation under the amended Toxic Substances Control Act (TSCA). In 2017, the EPA released a document for the pigment covering hazards, exposures, conditions of use, and the susceptible subpopulations it anticipated considering in its assessment. In publishing the draft risk evaluation in November 2018, the EPA concluded that PV29 does not pose an unreasonable risk to the environment or to human health.

Revised Draft Risk Evaluation

Following the issuance of the PV29 draft risk evaluation two years ago, the EPA received additional information from sources such as Sun Chemical (the only PV29 manufacturer in the U.S.). Based on this new data, the Agency revised its approach for evaluating corresponding chemical exposure and health effects. This resulted in a determination that PV29 does pose unreasonable workplace risk in several use conditions. These include:

  • Disposal
  • Domestic manufacturing
  • Importing
  • Incorporation into formulation, mixture, or reaction products in paints and coatings
  • Incorporation into formulation, mixture, or reaction products in plastic and rubber products
  • Industrial and commercial use in merchant ink for commercial printing
  • Industrial and commercial use in paints and coatings for coatings and basecoats
  • Industrial and commercial use in plastic and rubber products for automobile plastics
  • Industrial and commercial use in plastic and rubber products for industrial carpeting
  • Recycling
  • Use as an intermediate in the creation or adjustment of color of other perylene pigments

More specific information on this determination can be found in the revised draft risk evaluation for PV29. The EPA has opened a public comment period and a letter peer review process for this draft. The information gathered will, in turn, be used in the preparation of a forthcoming final risk evaluation.

Detailed Information on PV29 and More

Information obtained from chemical risk evaluations is essential in efforts to help protect human and environmental health. Equally important is having a thorough understanding of chemical substances, their properties, and their numerous uses.

For professionals who require detailed information on PV29, as well as a host of other chemical substances, ToxPlanet offers a variety of highly authoritative decision support solutions. To learn more about our offerings and how they can help address your information needs, contact us today and register for a Free Trial.