Hydrogen fluoride (fluorane) is an inorganic compound with the chemical formula HF. This colorless gas or liquid is the principal industrial source of fluorine, often as an aqueous solution called hydrofluoric acid. It is an important feedstock in the preparation of many important compounds including … See more In 1771 Carl Wilhelm Scheele prepared the aqueous solution, hydrofluoric acid in large quantities, although hydrofluoric acid had been known in the glass industry before then. French chemist Edmond Frémy (1814–1894) is … See more Hydrogen fluoride is typically produced by the reaction between sulfuric acid and pure grades of the mineral fluorite: CaF2 + H2SO4 → … See more Hydrogen fluoride is highly corrosive and a powerful contact poison. Exposure requires immediate medical attention. It can cause blindness by rapid destruction of the See more HF is diatomic in the gas-phase. As a liquid, HF forms relatively strong hydrogen bonds, hence its relatively high boiling point. Solid HF consists of zig-zag chains of HF molecules. The HF molecules, with a short covalent H–F bond of 95 pm length, are linked to … See more In general, anhydrous hydrogen fluoride is more common industrially than its aqueous solution, hydrofluoric acid. Its main uses, on a tonnage basis, are as a precursor to organofluorine compounds and a precursor to cryolite for the electrolysis of aluminium. See more • Fluorides, Hydrogen Fluoride, and Fluorine at ATSDR. Retrieved September 30, 2024 • CDC - NIOSH Pocket Guide to Chemical Hazards See more WebDensity of Anhydrous Hydrogen Fluoride 0.4 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 1.3 -200 -100 0 100 200 300 400 Temperature, oF Density, g/ml All statements and information are …
Hydrogen fluoride (anhydrous) HF – Detectors & Protection
Webanhydrous Quality Level 200 vapor density 2.5 (vs air) vapor pressure 114 mmHg ( 15 °C) 143 mmHg ( 20 °C) assay ≥99.9% form liquid autoignition temp. 610 °F expl. lim. 1.8-11.8 % impurities ≤20 ppm peroxide (as H2O2) <0.002% water <0.005% water (100 mL pkg) evapn. residue <0.0005% Looking for similar products? Visit Product Comparison Guide WebOct 13, 2024 · Recommendation on training for handling of Anhydrous Hydrogen Fluoride and Hydrofluoric Acid solutions; General properties of Anhydrous Hydrogen Fluoride … citi double cash card vs discover it
Anhydrous hydrogen fluoride. aHF - Linde Gas
WebThis guidance document will help you understand its properties, the health hazards it poses, and how to work safely with this acid. ... anhydrous HF gas since inhaling vapors of aqueous hydrofluoric acid can lead to the same result. HF fumes have a pungent, irritating, penetrating odor and can be smelled at 0.04 ppm (a relatively safe level) ... WebSep 18, 2024 · The aqueous etching solution used in this experiment is a BOE (buffered oxide etch) solution with a volume ratio of 1:6 (49% HF aqueous solution: 40% NH4F aqueous solution), and the anhydrous etching solution is made of dimethyl sulfoxide, surfactant, and anhydrous HF in a certain ratio (shown in Table 1). Some ingredients … citi double cash card terms and conditions