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.{{Cite journal|last=Zysman|first=Bernard|last2=Skelly|first2=P. Daniel|date=2000-02-01|title=Why some solvents are given VOC exempt status by the EPA and what the future holds|url=https://www.sciencedirect.com/science/article/pii/S0026057600814075|journal=Metal Finishing|language=en|volume=98|issue=2|pages=84–88|doi=10.1016/S0026-0576(00)81407-5|issn=0026-0576|access-date=2021-02-08|archive-date=2021-02-08|archive-url=https://web.archive.org/web/20210208171054/https://www.sciencedirect.com/science/article/abs/pii/S0026057600814075|url-status=live|url-access=subscription}}{{Cite web|title=Exempt Compounds|url=https://www.aqmd.gov/home/rules-compliance/compliance/vocs/exempts|access-date=2021-02-08|website=www.aqmd.gov|archive-date=2021-02-08|archive-url=https://web.archive.org/web/20210208171045/https://www.aqmd.gov/home/rules-compliance/compliance/vocs/exempts|url-status=live}}{{Cite web|last=US EPA|first=OAR|date=2019-05-10|title=Volatile Organic Compound Exemptions|url=https://www.epa.gov/ground-level-ozone-pollution/volatile-organic-compound-exemptions|access-date=2021-02-08|website=US EPA|language=en|archive-date=2021-02-08|archive-url=https://web.archive.org/web/20210208171120/https://www.epa.gov/ground-level-ozone-pollution/volatile-organic-compound-exemptions|url-status=live}}{{Cite web|url=https://www.paint.org/voc-exempt/|title=Update: U.S. EPA Exempt Volatile Organic Compounds|date=2018-01-30|website=American Coatings Association|language=en-US|access-date=2019-03-20|archive-date=2021-02-08|archive-url=https://web.archive.org/web/20210208171107/https://www.paint.org/voc-exempt/|url-status=live}}{{Cite web|url=http://web.epa.state.oh.us/opp/solvents/fact34.html|title=Acetone Regulations and Pollution Prevention: What You Should Know|website=web.epa.state.oh.us|access-date=2019-03-27|archive-date=2019-04-09|archive-url=https://web.archive.org/web/20190409195822/http://web.epa.state.oh.us/opp/solvents/fact34.html|url-status=dead}} This class of solvent currently includes acetone, dimethyl carbonate, methyl acetate, parachlorobenzotrifluoride (Oxsol 100), tert-Butyl acetate,{{Cite web |title=Tert-Butyl Acetate: VOC-Exempt Solvent for Coatings |url=https://www.lyondellbasell.com/globalassets/documents/chemicals-technical-literature/lyondellbasell-chemicals-technicalliterature-tert-butyl-acetate--voc-exempt-solvent-in-coatings-3385.pdf |website=LyondellBasell}} and propylene carbonate.{{Cite web|url=https://www3.epa.gov/ttn/oarpg/t1pfpr.html|archive-url=https://web.archive.org/web/20000903024747/http://www.epa.gov/ttn/oarpg/t1pfpr.html|url-status=dead|archive-date=September 3, 2000|title=EPA VOC exempt}} The definition is often that they do not contribute to ozone or ozone depletion.{{Cite web|title=VOC Content {{!}} Determining VOC Content {{!}} Article {{!}} CP Adhesives|url=https://www.cpadhesives.com/determining-voc-content|access-date=2021-02-08|website=www.cpadhesives.com|archive-date=2021-02-08|archive-url=https://web.archive.org/web/20210208171117/https://www.cpadhesives.com/determining-voc-content|url-status=live}}

Solvent

In the US, dimethyl carbonate was exempted under the definition of volatile organic compounds (VOCs) by the U.S. EPA in 2009.https://web.archive.org/web/20090928112820/http://www.epa.gov/ttn/oarpg/t1/fact_sheets/voc_exemp01011309.pdf] epa.gov] {{Webarchive (MEK) and other solvents. tert-Butyl acetate is used as a solvent in the production of lacquers, enamels, inks, adhesives, thinners and industrial cleaners.{{Cite web|title=Formulating VOC-Compliant Coatings with Exempt Solvents|url=https://www.pcimag.com/articles/86434-formulating-voc-compliant-coatings-with-exempt-solvents?v=preview|access-date=2021-02-08|website=www.pcimag.com|language=en|archive-date=2021-02-08|archive-url=https://web.archive.org/web/20210208171051/https://www.pcimag.com/articles/86434-formulating-voc-compliant-coatings-with-exempt-solvents?v=preview|url-status=live}}{{Cite web|title=VOC Exempt Solvents|url=https://www.hydrite.com/Industries/Paints-Coatings-Inks-Adhesives/VOC-Exempt-Solvents.htm|access-date=2021-02-08|website=www.hydrite.com|archive-date=2021-02-08|archive-url=https://web.archive.org/web/20210208171050/https://www.hydrite.com/Industries/Paints-Coatings-Inks-Adhesives/VOC-Exempt-Solvents.htm|url-status=live}} It also gained EPA VOC exempt status.

Uses

VOC exempt solvents are used in applications where traditional solvents are used. These include Coatings, Adhesives, Sealants and Elastomers.

Safety

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

References