HBr and Hl were not yet known, fluorine was not to be isolated until 1886, and Lavoisier, in keeping with his system, merely postulated that chlorine was the as yet undecomposed oxide of an element that he called themuriaticradicalormuriaticum. HBr 和 Hl 那时还不为人所知,氟直到 1886 年...
It refers to a compound containing an acyclic hydrogen oxidation fluorine core, wherein R5 and R6 are h, halo, C1-C8 tar, alcoxi C1-C8, arilo, isopropene, etc.; X is c-y,There and there are h, halo, NH2, NH2, NO2, tar, bike, heterosexual and so on. It also relates to a...
: a colorless poisonous gas that is made up of hydrogen and fluorine and produces hydrofluoric acid when dissolved in water Medical Definition hydrogen fluoride noun : a colorless corrosive fuming usually gaseous compound HF that yields hydrofluoric acid when dissolved in water More...
a colorless poisonous gas that is made up of hydrogen and fluorine and produces hydrofluoric acid when dissolved in water hydrogen fluoride医学词典英英释义 hydrogen fluoridenoun a colorless corrosive fuming usually gaseous compound HF that yields hydrofluoric acid when dissolved in water ...
Learn about hydrogen fluoride. Understand the HF compound, learn the hydrogen fluoride formula, and examine its properties such as molar mass and...
The thermodynamic basis of this low reactivity is the very strong H–H bond, with a bond dissociation energy of 435.7 kJ/mol.[23] The kinetic basis of the low reactivity is the nonpolar nature of H2 and its weak polarizability. It spontaneously reacts with chlorine and fluorine to form ...
Hydrogen fluoride is the most important fluorine compound, in terms ofamounts produced and the vast number of uses. The largest application of thiscompound is in the manufacture of aluminum fluoride and sodium aluminumfluoride (cryolite) for electrolytic production of aluminum. Another majorapplication...
Hydrogen has been used as a primary rocket fuel forcombustionwith oxygen orfluorineand is favoured as a propellant for nuclear-powered rockets and space vehicles. Another increasing use of hydrogen is in the direct reduction ofironores tometalliciron and in the reduction of the oxides oftungstenan...
(F), oxygen, andnitrogen. In the bifluoride ion, HF2−, the hydrogen atom links two fluorine atoms. In the crystal structure ofice, each oxygen atom is surrounded by four other oxygen atoms, with hydrogen atoms between them. Some of the hydrogen bonds are broken when ice melts, and ...
said fluorine-containing halogen compound being represented by the formula (1): wherein n represents an integer of 0 to 3, and X represents a chlorine atom, a bromine atom, or an iodine atom; said hydrogen-containing fluoroolefin compound being represented by the formula (2): ...