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The EPA on Tuesday issued a final rule that encourages the
use of solvents that don't significantly contribute to ground-level ozone. Two
chemicals used in solvents, propylene carbonate and dimethyl carbonate, will no
longer need to be regulated as volatile organic compounds (VOCs) under the
Clean Air Act, the agency said in a release.
Propylene carbonate, also known as 1,2-Propanediol carbonate, is an irritant and may be harmful if inhaled. When burned, it decomposes into CO2 and propylene oxide.
Dimethyl carbonate, or DMC, is a Class 3 flammable liquid that has started to gain more popularity as a methylating reagent.
According to the EPA release, "extensive scientific reviews indicate these chemicals have little or no effect on forming smog or ground-level ozone. By excluding these chemicals, states will be able to focus on controlling other emissions that more significantly contribute to ozone."
Propylene carbonate, also known as 1,2-Propanediol carbonate, is an irritant and may be harmful if inhaled. When burned, it decomposes into CO2 and propylene oxide.
Dimethyl carbonate, or DMC, is a Class 3 flammable liquid that has started to gain more popularity as a methylating reagent.
According to the EPA release, "extensive scientific reviews indicate these chemicals have little or no effect on forming smog or ground-level ozone. By excluding these chemicals, states will be able to focus on controlling other emissions that more significantly contribute to ozone."
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