hydrogen fluoride wikipedia - EAS
Hydrogen fluoride - Wikipedia
https://en.wikipedia.org/wiki/Hydrogen_fluorideWebHydrogen fluoride (fluorane) is an inorganic compound with the chemical formula H F.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 pharmaceuticals and polymers, e.g. …
Fluoride - Wikipedia
https://en.wikipedia.org/wiki/FluorideWeb1) This neutralization reaction forms hydrogen fluoride (HF), the conjugate acid of fluoride. In aqueous solution, fluoride has a p K b value of 10.8. It is therefore a weak base , and tends to remain as the fluoride ion rather than generating a substantial amount of hydrogen fluoride. That is, the following equilibrium favours the left-hand side in water: …
Hydrogen chloride - Wikipedia
https://en.wikipedia.org/wiki/Hydrogen_chlorideWebHydrogen chloride is a diatomic molecule, consisting of a hydrogen atom H and a chlorine atom Cl connected by a polar covalent bond.The chlorine atom is much more electronegative than the hydrogen atom, which makes this bond polar. Consequently, the molecule has a large dipole moment with a negative partial charge (δ−) at the chlorine …
Hydrogen halide - Wikipedia
https://en.wikipedia.org/wiki/Hydrogen_halideWebThe hydrogen halides are diatomic molecules with no tendency to ionize in the gas phase (although liquified hydrogen fluoride is a polar solvent somewhat similar to water). Thus, chemists distinguish hydrogen chloride from hydrochloric acid. The former is a gas at room temperature that reacts with water to give the acid.
Lifting gas - Wikipedia
https://en.wikipedia.org/wiki/Lifting_gasWebA lifting gas or lighter than air gas is a gas that has a lower density than normal atmospheric gases and rises above them as a result. It is required for aerostats to create buoyancy, particularly in lighter-than-air aircraft, which include free balloons, moored balloons, and airships.Only certain lighter than air gases are suitable as lifting gases. Dry …
Tin(II) fluoride - Wikipedia
https://en.wikipedia.org/wiki/Tin(II)_fluorideWebTin(II) fluoride, commonly referred to commercially as stannous fluoride (from Latin stannum, 'tin'), is a chemical compound with the formula SnF 2. It is a colourless solid used as an ingredient in toothpastes .
Hydrofluoric acid - Wikipedia
https://en.wikipedia.org/wiki/Hydrofluoric_acidWebHydrofluoric acid is a solution of hydrogen fluoride (HF) in water.Solutions of HF are colourless, acidic and highly corrosive.It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon). Elemental fluorine is …
Edward Teller - Wikipedia
https://en.wikipedia.org/wiki/Edward_TellerWebEdward Teller (Hungarian: Teller Ede; January 15, 1908 – September 9, 2003) was a Hungarian-American theoretical physicist who is known colloquially as "the father of the hydrogen bomb" (see the Teller–Ulam design), although he did not care for the title, considering it to be in poor taste. Throughout his life, Teller was known both for his …
Calcium fluoride - Wikipedia
https://en.wikipedia.org/wiki/Calcium_fluorideWebCalcium fluoride is the inorganic compound of the elements calcium and fluorine with the formula CaF 2. It is a white insoluble solid. ... Hydrogen fluoride is liberated from the mineral by the action of concentrated sulfuric acid: …
Ammonium bifluoride - Wikipedia
https://en.wikipedia.org/wiki/Ammonium_bifluorideWebAmmonium hydrogen fluoride is the inorganic compound with the formula [NH 4][HF 2] or [NH 4]F·HF. It is produced from ammonia and hydrogen fluoride. This colourless salt is a glass-etchant and an intermediate in a once-contemplated route to hydrofluoric acid Structure. Ammonium bifluoride, as its name ...