Hydrogen fluorine

Hydrazine Alkali metals, ammonia, chlorine, chromates and dichromates, copper salts, fluorine, hydrogen peroxide, metallic oxides, nickel, nitric acid, liquid oxygen, zinc diethyl... 

Mercury(II) cyanide Fluorine, hydrogen cyanide, magnesium, sodium nitrite... 

A fluorine-hydrogen migration is typical for the reactions of aldehydes branched at the carbon atom a to the formyl group. Comparable amounts of 1,1 -difluoroalkanes and 1,2-difluoroalkanes together with bis(l -fluoroalkyl) ethers are obtained [169] (equation 84). 

An extreme example of the fluorine-hydrogen bond is found in the hydrogen difluoride ion, HFS. This ion exists in acidic solutions of fluorides,... 

The reagents useful for the fluorination of ores and compounds include flurosilicates, elemental fluorine, hydrogen fluoride, and alkali hydrogen fluorides. Their use is illustrated for fluorination of oxides and oxidic minerals. 

The actual fluoride-forming reaction in the ammonium bifluoride route is hydro-fluorination. Hydrogen fluoride, which is present in chemical combination in the bifluoride, is readily released on heating. Bifluorides are easier to handle than hydrogen fluoride. The particular advantage of ammonium bifluoride over other alkali hydrogen fluorides is that it is volatile, and thus can be readily distilled out from the reaction mixture. 

Other examples of long range coupling of fluorine to fluorine, hydrogen and carbon are given in Scheme 2.6.6-8... 

Chlorine trifluoride Hydrogen-containing materials 6.82/97 Fluorine Hydrogen 13.39/95 Iodine heptafluoride Carbon, etc. 

Mercury(II) cyanide Mercury(I) nitrate Mercury(II) nitrate Fluorine, hydrogen cyanide, magnesium, sodium nitrite Phosphorus Acetylene, aromatics, ethanol, hypophosphoric acid, phosphine, unsaturated organic compounds... 

The mngsten ore called scheehte is named after Carl Wilhelm Scheele (1742—1786), who smdied and experimented with tungsten minerals, but as with many of his other near discoveries, such as oxygen, fluorine, hydrogen sulfide, hydrogen cyanide, and manganese, he was not given credit. 

PESs for fluorine, hydrogen fluoride, and water using this ansatz showed promise [14]. In all cases the perturbative approach improved the accuracy considerably at a small increase of computational cost. Especially interesting is the possibility of linear scaling. 

Until recently, halogen substituted alkanes were thought to be inert to xenon difluoride, but detailed examination has shown that common solvents such as dichloromethane (3) and chloroform (4) undergo fluorine-chlorine and fluorine-hydrogen exchange at room temperature due to hydrogen fluoride catalysis.15... 

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