The United States Environmental Protection Agency is asking for additional public input on final rules for five chemicals deemed persistent, bioaccumulative and toxic under the Toxic Substances Control Act. The chemicals impacted by the rules, which took effect in February, include two used to make lubricants and as lubricant additives.
According to EPA, 2,4,6-tris(tert-butyl)phenol, is used in formulations and mixtures for liquid lubricant and grease additives. Isopropylated phosphate (3:1) is used to make lubricants and greases, and in 2019 EPA had announced it would make exceptions for such uses.
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