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  1. Hydrogen fluoride - Wikipedia

    HF is the precursor to elemental fluorine, F 2, by electrolysis of a solution of HF and potassium bifluoride. The potassium bifluoride is needed because anhydrous HF does not conduct electricity.

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  4. Hydrogen Fluoride | Chemical Emergencies | CDC

    Sep 6, 2024 · Background Hydrogen fluoride is a chemical compound (made up of two or more elements) that has the element fluorine. It can be a colorless gas or a fuming liquid, which means it …

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  10. Hydrofluoric acid - Wikipedia

    Solutions of HF are colorless, acidic and highly corrosive. A common concentration is 49% (48–52%) but there are also stronger solutions (e.g. 70%) and pure HF has a boiling point near room temperature.