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  2. Organofluorine chemistry - Wikipedia

    en.wikipedia.org/wiki/Organofluorine_chemistry

    Some important organofluorine compounds. A: fluoromethane B: isoflurane C: a CFC D: an HFC E: triflic acid F: Teflon G: PFOS H: fluorouracil I: fluoxetine Organofluorine chemistry describes the chemistry of organofluorine compounds, organic compounds that contain a carbon–fluorine bond.

  3. Per- and polyfluoroalkyl substances - Wikipedia

    en.wikipedia.org/wiki/Per-_and_polyfluoroalkyl...

    The United States Environmental Protection Agency (EPA) defines PFAS in the Drinking Water Contaminant Candidate List 5 as substances that contain "at least one of the following three structures: R−CF 2 −CF(R')R", where both the −CF 2 − and −CF− moieties are saturated carbons, and none of the R groups can be hydrogen; R−CF 2 −O ...

  4. Category : Images in the public domain in the United States

    en.wikipedia.org/wiki/Category:Images_in_the...

    Many of these images will get deleted on Commons as they are still copyrighted in their country of origin or have insufficient source information to satisfy the Commons:Project scope. This category is intended to hold images that are in the public domain in the United States.

  5. List of gases - Wikipedia

    en.wikipedia.org/wiki/List_of_gases

    This list is sorted by boiling point of gases in ascending order, but can be sorted on different values. "sub" and "triple" refer to the sublimation point and the triple point, which are given in the case of a substance that sublimes at 1 atm; "dec" refers to decomposition. "~" means approximately. Blue type items have an article available by ...

  6. US oil, biofuel groups unite to urge new Trump EPA to boost ...

    www.aol.com/news/us-oil-biofuel-groups-unite...

    U.S. oil and biofuel groups banded together this week to urge the new Trump administration to increase volumes of renewable fuels that must be blended into the nation's fuel mix in 2026 and beyond ...

  7. Perfluorinated compound - Wikipedia

    en.wikipedia.org/wiki/Perfluorinated_compound

    Pentafluorophenol, a perfluorinated compound.. A perfluorinated compound (PFC) or perfluoro compound is an organofluorine compound that lacks C-H bonds. Many perfluorinated compounds have properties that are quite different from their C-H containing analogues.

  8. Eriophyllum lanatum - Wikipedia

    en.wikipedia.org/wiki/Eriophyllum_lanatum

    Eriophyllum lanatum is a perennial herb growing from 30 to 60 centimetres (12 to 24 inches) in height, in well-branched clumps. Both the stems and leaves may be covered with a woolly gray hair, but some plants lack this.

  9. Flora of the United States - Wikipedia

    en.wikipedia.org/wiki/Flora_of_the_United_States

    The native flora of the United States includes about 17,000 species of vascular plants, plus tens of thousands of additional species of other plants and plant-like organisms such as algae, lichens and other fungi, and mosses.