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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 …

  2. 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 …

  3. Information on Hydrofluoric Acid - Stanford University

    Hydrofluoric acid, a solution of hydrogen fluoride gas (HF) in water, is one of the most corrosive and dangerous chemicals encountered in the laboratory. Exposure to HF can cause severe …

  4. Hydrofluoric Acid | HF | CID 14917 - PubChem

    Hydrofluoric Acid | HF or FH | CID 14917 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity …

  5. Hydrogen fluoride | chemical compound | Britannica

    …and fluorine react to form hydrogen fluoride, which contains HF molecules. The hydrogen and fluorine atoms are bound together by a pair of electrons, one electron contributed by the …

  6. Heart Failure Tools and Resources | American Heart Association

    My HF Guide – An interactive workbook to help manage symptoms | Also available as a PDF Symptom Tracker (PDF) | Spanish (PDF) HF and Your Ejection Fraction Explained (PDF) | …

  7. HYDROGEN FLUORIDE Definition & Meaning - Merriam-Webster

    Jul 8, 2025 · The meaning of HYDROGEN FLUORIDE is a colorless corrosive fuming usually gaseous compound HF that yields hydrofluoric acid when dissolved in water.

  8. High frequency - Wikipedia

    Frequencies immediately below HF are denoted medium frequency (MF), while the next band of higher frequencies is known as the very high frequency (VHF) band. The HF band is a major …

  9. HYDROGEN FLUORIDE† - Occupational Safety and Health Administration

    * All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete …

  10. Hydrogen fluoride - American Chemical Society

    Jul 12, 2021 · Hydrogen fluoride (HF) is an extremely toxic, corrosive gas and liquid. As the lightest of the hydrogen halides, it has a surprisingly high boiling point, higher even than that of …