Not exactly a full ban, just eliminated from OTC sources like paint stripper and brake cleaner. There are still several uses the EPA has recognized
its continued use under this ban.
| Quote: |
Uses that will continue under the Workplace Chemical Protection Program are highly industrialized and important to national security and the economy.
These are uses for which EPA received data and other information that shows workplace safety measures to fully address the unreasonable risk could be
achieved. These uses include:
Use in the production of other chemicals, including refrigerant chemicals that are important in efforts to phase down climate-damaging
hydrofluorocarbons under the bipartisan American Innovation and Manufacturing Act.
Production of battery separators for electric vehicles.
Use as a processing aid in a closed system.
Use as a laboratory chemical.
Use in plastic and rubber manufacturing, including polycarbonate production.
Use in solvent welding.
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Even under this ruling, DCM is still available for the lab from several online suppliers. Still, this synthesis is interesting. Is the trithiane
necessary, or can DCM be produced from other formaldehyde sources, like trioxane, or POM resin?
https://www.epa.gov/newsreleases/biden-harris-administration...
[Edited on 9/30/2025 by chempyre235] |
