VOC exempt solvent
VOC exempt solvents are organic compounds that are exempt from restrictions placed on most volatile organic compounds (VOCs) in the United States.[1][2][3][4][5] This class of solvent currently includes acetone, dimethyl carbonate, methyl acetate, parachlorobenzotrifluoride (Oxsol 100), tert-Butyl acetate,[6] and propylene carbonate.[7] The definition is often that they do not contribute to ozone or ozone depletion.[8]
Solvent
[edit | edit source]In the US, dimethyl carbonate was exempted under the definition of volatile organic compounds (VOCs) by the U.S. EPA in 2009.[9] Due to its classification as VOC exempt, dimethyl carbonate has grown in popularity and applications as a replacement for methyl ethyl ketone (MEK) and other solvents. tert-Butyl acetate is used as a solvent in the production of lacquers, enamels, inks, adhesives, thinners and industrial cleaners.[10][11] It also gained EPA VOC exempt status.
Uses
[edit | edit source]VOC exempt solvents are used in applications where traditional solvents are used. These include Coatings, Adhesives, Sealants and Elastomers.
Safety
[edit | edit source]VOC exempt status does not mean that the solvent is non-flammable and thus safety must be carefully considered. For example, Acetone has an extremely low flash point and care is needed when handling.
See also
[edit | edit source]References
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- ^ [1] epa.gov] Archived 2021-02-08 at the Wayback Machine. Information about the EPA's action on exempting dimethyl carbonate as a VOC and petitioner's background information, public comments and other references are available electronically at http://www.regulations.gov Archived 2012-09-25 at the Wayback Machine, EPA's electronic public docket and comment system. The docket number for this action is Docket ID No. EPA-HQ-OAR-2006-0948. See [2] and scroll down to Jan 13, 2009 pdf for the rule.
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