Chlorine pentafluoride reactions

The halogen fluorides are best prepared by the reaction of fluorine with the corresponding halogen. These compounds are powerful oxidising agents chlorine trifluoride approaches the reactivity of fluorine. In descending order of reactivity the halogen fluorides are chlorine pentafluoride [13637-63-3] 1 5 chlorine trifluoride [7790-91-2] 3 bromine pentafluoride [7789-30-2], BrF iodine heptafluoride [16921 -96-3], chlorine... 

Fluorine also reacts with other halogens, forming interhalogen compounds. While with bromine and iodine it reacts vigorously at ordinary temperatures, with chlorine the reaction occurs at 200°C. Such interhalogen products with these halogens include iodine heptafluoride, bromine trifluoride, bromine pentafluoride, and chlorine trifluoride. Metalloid elements, such as arsenic, silicon, selenium, and boron also inflame in a stream of fluorine, forming fluorides. 

Chlorine monofluoride oxide, 18 328-330 force field of, 18 329, 330 infrared spectrum of, 18 328, 329 stretching force constants for, 18 330 synthesis of, 18 328 Chlorine nitrate fluorination of, 18 332 preparation of, 5 54 Chlorine oxides, 46 109-110, 158 fluorination of, 18 348 Chlorine oxyfluorides, 18 319-389, see also specific compounds adduct formation, 18 327, 328 amphoteric nature of, 18 327, 328 bond lengths, 18 326 bond strengths, 18 323-327 geometry of, 18 320-323 ligand distribution, 18 323 reactivity of, 18 327, 328 stretching force constants, 18 324-327 Chlorine pentafluoride oxide, 18 345, 346 Chlorine trifluoride, reaction with difluoramine, 33 157... 

Table IV. A. 3 - Performance and Reaction Products of Hydrazine and Chlorine Pentafluoride at 1000 psia. (Shifting Equilibrium and Frozen Expansion to One Atmosphere (optimum area ratio and to Vacuum (100 1 area ratio) )...

Sawyer, R.F., McMullen, E.T., Purgalis, P., The Reaction of Hydrazine and Chlorine Pentafluoride in a Laboratory Rocket Combustor. AIAA Paper 1968, pages 68-92. 

These compounds and some of their important physical properties are listed in Table 13-9. The preparations of C1F and BrF have already been mentioned. Chlorine trifluoride may be prepared by direct combination of the elements at 200 to 300°C and is available commercially. It is purified by converting it into KC1F4 by the action of KF and thermally decomposing the salt at 130 to 150°C. Chlorine pentafluoride (C1F5) can be made efficiently either by interaction of F2 with C1F3 or by the reaction ... 

TIN or TIN POWDER (7440-31-5) Sn Finely divided material is combustible and forms explosive mixture with air [autoignition temp (dust cloud) 1166°F/630°C]. Contact with moisture in 911 forms tin dioxide. A reducing agent the powder is very reactive. Violent reaction with strong acids, strong oxidizers, ammonium perchlorate, ammonium nitrate, bis-o-azido benzoyl peroxide, bromates, bromine, bromine pentafluoride, bromine trifluoride, bromine azide, cadmium, carbon tetrachloride + water, chlorine, chlorine monofluoride, chlorine nitrate, chlorine pentafluoride, chlorites, copper(II) nitrate, dimethylarsinic acid, fluorine, hydriodic acid, iodine heptafluoride, nitrosyl fluoride, oxygen difluoride, perchlorates, perchloroethylene, potassium dioxide, phosphorus pentoxide, sulfur, sulfur dichloride, turpentine (fire or explosion). 

Chlorine pentafluoride was first synthesized by fluorination of chlorine trifluoride with fluorine under pressure of 250 bar at 360°C. Later on this method was modified, for example, by use of alkali metal tetrafluorochlortttes instead of chlorine trifluoride. It has also been found that nickelfll) fluoride catalyzes the reaction between chlorine trifluoride and fluorine. ... 

The reaction vessel is then removed from the liquid-nitrogen bath and placed into a cold electric furnace with an aluminum block. The aluminum block is then heated to 200°C for 3 h. Subsequently, the reaction vessel is cooled with liquid oxygen to — 183°C and excess fluorine is distilled off into another container, cooled to - 196°C. The rest of the fluorine is pumped dff through a soda-lime trap. Chlorine pentafluoride is removed from the reactor... 

Nonflammable gas. Chlorine pentafluoride is a highly reactive substance. It reacts explosively with water. Paper, cloth, wood, and other organic matter would burst into flames upon contact with the liquid or vapor of chlorine pentafluoride. Vigorous to violent reaction occurs with metals. Reactions with oxides, sulfides, halides, and carbides of metals are violent. It forms explosive mixtures with hydrogen, carbon monoxide, hydrocarbon gases, ammonia, phosphine, sulfur dioxide, and hydrogen sulfide. It reacts violently with sulfur, phosphorus, silicon compounds, charcoal, and mineral acids. 

An attempt to release the parent compound QF7 by reacting the ClFe compound with NOF has failed . Instead, the following reaction releases only chlorine pentafluoride... 

The halogen fluorides are binary compounds of bromine, chlorine, and iodine with fluorine. Of the eight known compounds, only bromine trifluoride, chlorine trifluoride, and iodine pentafluoride have been of commercial importance. Properties and appHcations have been reviewed (1 7) as have the reactions with organic compounds (8). Reviews covering the methods of preparation, properties, and analytical chemistry of the halogen fluorides are also available (9). 

Vinyl and phenyl mfluoromethyl groups are reactive in the presence of aluminum chloride [10] Replacement of fluorine by chlorine often occurs Polyfluori-nated trifluoromethylbenzenes form reactive a,a-difluorobenzyl cations in antimony pentafluoride [11] 1 Phenylperfluoropropene cyclizes in aluminum chloride to afford 1,1,3-trichloro 2 fluoroindene [10] (equation 10) The reaction IS hypothesized to proceed via an allylic carbocation, whose fluoride atoms undergo halogen exchange... 

Formation of the adduct chlorine trifluoride-ruthenium pentafluoride by reaction... 

Phosphorus pentachloride, 79 40, 42-44 end use of chlorine, 6 135t sodium reactions with, 22 766 Phosphorus pentafluoride, 79 33 Phosphorus pentahalides, 79 31-33 Phosphorus pentoxide, 79 49, 69. See also Phosphorus(V) oxides as cellulose solvent, 77 272 in hydrogen fluoride manufacture, 74 11 vapor of, 79 49... 

When heated with chlorine, bromine or iodine vapors arsenic forms the corresponding trihalides however, with fluorine, arsenic pentafluoride, AsFs is produced. With sulfur it forms mixtures of sulfides, AS2S3, AS2S2 and AS2S5 in vitreous forms and varying proportions depending on the conditions of reactions. 

The triatomic cations are usually prepared from the corresponding interhalogen, by reaction with a halogen acceptor molecule. This is impossible for some of the more exotic species which have no interhalogen precursor. For example, the [Br3]+ cation has been characterized20 in [Br3]+[AsF6], formed from the interaction of arsenic pentafluoride and a bromine/bromine pentafluoride mixture and the [Cl FJ cation results from the interaction of antimony pentafluoride with chlorine monofluoride.21... 

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