Fluoride formation

Rubidium metal alloys with the other alkaU metals, the alkaline-earth metals, antimony, bismuth, gold, and mercury. Rubidium forms double haUde salts with antimony, bismuth, cadmium, cobalt, copper, iron, lead, manganese, mercury, nickel, thorium, and 2iac. These complexes are generally water iasoluble and not hygroscopic. The soluble mbidium compounds are acetate, bromide, carbonate, chloride, chromate, fluoride, formate, hydroxide, iodide. 

Whether mixtures of the perchlorate with aluminium truly detonate is under debate. However, appropriate compositions certainly explode violently even when uncontained, so the deflagration/detonation dispute is essentially academic [1]. Presence of aluminium fluoride increases the ease of ignition of aluminium-perchlorate mixtures, owing to complex fluoride formation [2],... 

All metals react with fluorine to form metal fluorides. With alkali metals the reactions are violent and highly exothermic at ordinary temperatures. Other metals react at high temperatures. Many metals in their solid form react with fluorine at ordinary temperatures, forming protective coatings of metal fluorides which prevent any further fluoride formation. Such metals include copper, nickel and aluminum, which mostly are metals of construction. Protective coatings of these metal fluorides have very low volatility, thus preventing further fluorination. However, with certain metals such as titani-... 

Bromine (I) fluoride, formation of, in preparation of BrF3, 3 185 Bromine(III) fluoride, 3 184 Bromine (V) fluoride, formation of, in preparation of BrF3, 3 185 Bromine solution, in carbon tetrachloride, 1 86... 

Catalase reacts reversibly with some weak acids forming spectroscopically and magnetically distinct noncovalent derivatives. Of these, catalase-cyanide, -azide, -fluoride, -formate, and -acetate complexes have been extensively studied (37, 135, 136) and reviewed in some detail (16-18). Briefly, there is a consensus that such reactions do not involve heme-heme interaction and, with the possible exception of carboxylate ligands (102), all presumably result in replacement of the proximal aquo ligand at Ls in a stoichiometric reaction shown in Eq. (11) ... 

Jarnberg PO, Ekstrand J, Irestedt L, Santesson J. Renal function and fluoride formation and excretion during enflurane anaesthesia. Acta Anaesthesiol Scand 1979 23(5) 444-52. 

By mistake, sodimn was added to excess liquid perfluoroalkylmethanol in the absence of tire diluent which had previously moderated the reaction. Vigorous initial reaction culminated in an explosion which destroyed the flask and attached glassware and cracked tire fume cupboard window, this was attributed to ignition of evolved hydrogen [1]. Since air would rapidly be swept from the flask by the gas flow, it seems probable that a hydrogen explosion sufficient to damage the hood would be external to the reaction flask. The desired fluoroalkoxide is undoubtedly thennodynamically imstable with respect to sodium fluoride formation and a number of other metal derivatives of fluorinated organics have proved explosively metastable [2]. 

When boric acid is added to a solution of Nb-, Ta-, W-, Mo-, or Zr fluoride complexes, the boron displaces the fluoride (formation of BFT) from the Nb, Ta, and W complexes, causing the precipitation of these metals, while Zr and Mo remain in solution, since their fluoride complexes are more stable [5]. 

Flexible leaflets (cubic, NaCl lattice). Very hygroscopic. Darkens on exposure to light- d 5.852. mp 435°. bp about 1150. Soly in water when freshly prepd 182 g/100 ml at 15.5°. In moist air it gradually becomes insol because of basic fluoride Formation. Aq solns are neutral and are solvents for silver oxide which renders them alkaline. Also sol in HF, NHj, CHjCN. Forms several hydrates. The dihydrate is stable to 39.5 and the tetrahydrate is stable from — 14 to +18.7. In addition, an acid fluorida, AgF.3HF can be prepd by cooling a soln of AgF in HF, This loses HF at 0. forming AgP.HF. 

The electron diffraction analysis of such systems [81] have revealed the formation of y-Fe203 and FeF2 particles for initial Fe(CO)s and revealed Co, C02O3, and C0F2 for initial Co2(CO)g. The metal fluoride formation is connected with the reactions involving the polymer chain and is accompanied by the C-F bond splitting ... 

Hydrogen fluoride (HF) fails to convert alcohols to the corresponding fluorides. Sulfur tetrafluoride or its derivative, diethylaminosulfur trifluoride (DAST (CH3CH2)2NSp3), is required for the conversion of alcohols to the corresponding fluorides. As with analogous proton-catalyzed reactions and as shown in Scheme 8.29, alkyl fluoride formation results from mixtures of SnI and Sn2 processes. 

Sulfides, sulfites, thiosulfates, cyanides, azides, fluorides, formates, acetates and nitrites interfere because the respective volatile acids, liberated on acidifying their salts, also decolorize phenolphthalein-sodium carbonate solution. Under suitable conditions, however, the carbonate test may be carried out successfully even in the presence of large amounts of the materials listed below. 

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