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  2. Aluminium fluoride - Wikipedia

    en.wikipedia.org/wiki/Aluminium_fluoride

    The majority of aluminium fluoride is produced by treating alumina with hydrogen fluoride at 700 °C: [4] Hexafluorosilicic acid may also be used make aluminium fluoride. [11] H 2 [SiF 6] + Al 2 O 3 + 3 H 2 O → 2 AlF 3 + SiO 2 + 4 H 2 O. Alternatively, it is manufactured by thermal decomposition of ammonium hexafluoroaluminate. [12]

  3. Fluoride - Wikipedia

    en.wikipedia.org/wiki/Fluoride

    Fluoride mimics the nucleophilic hydroxide ion in these enzymes' active sites. [41] Beryllium fluoride and aluminium fluoride are also used as phosphatase inhibitors, since these compounds are structural mimics of the phosphate group and can act as analogues of the transition state of the reaction. [42] [43]

  4. Cryolite - Wikipedia

    en.wikipedia.org/wiki/Cryolite

    Substantial energy is still needed for both heating the materials and the electrolysis, but it is much more energy-efficient than melting the oxides themselves. As natural cryolite is now too rare to be used for this purpose, synthetic sodium aluminium fluoride is produced from the common mineral fluorite. [citation needed]

  5. Activated alumina - Wikipedia

    en.wikipedia.org/wiki/Activated_alumina

    Activated alumina is manufactured from aluminium hydroxide by dehydroxylating it in a way that produces a highly porous material; this material can have a surface area significantly over 200 m 2 /g. The compound is used as a desiccant (to keep things dry by adsorbing water from the air) and as a filter of fluoride , arsenic and selenium in ...

  6. Fluorochemical industry - Wikipedia

    en.wikipedia.org/wiki/Fluorochemical_industry

    Aluminium smelting process: cryolite (a fluoride) is required to dissolve aluminum oxide. One third of HF (one sixth of mined fluorine) is used to make synthetic cryolite (sodium hexafluoroaluminate) and aluminium trifluoride. These compounds are used in the electrolysis of aluminium by the Hall–Héroult process. About 23 kg (51 lb) are ...

  7. The Truth About the TikTok Claim That Fluoride Is Bad - AOL

    www.aol.com/truth-tiktok-claim-fluoride-bad...

    Fluoride's dental health benefits have been established for decades, but recent TikToks claim it's toxic. Dentists explain what you should know. The Truth About the TikTok Claim That Fluoride Is Bad

  8. Is fluoride in drinking water safe? RFK Jr. says fluoride ...

    www.aol.com/fluoride-drinking-water-safe-know...

    What is fluoride? Fluoride is a natural mineral. It is found in soil, air, food and water sources across the planet, although in different amounts depending on the place, according to the National ...

  9. Aluminium smelting - Wikipedia

    en.wikipedia.org/wiki/Aluminium_smelting

    The process produces a quantity of fluoride waste: perfluorocarbons and hydrogen fluoride as gases, and sodium and aluminium fluorides and unused cryolite as particulates. This can be as small as 0.5 kg per tonne of aluminium in the best plants in 2007, up to 4 kg per tonne of aluminium in older designs in 1974.