Sulphuryl fluoride

Styrene oxide Sulphate Sulphite Sulprofos Sulphur dioxide Sulphur hexafluoride Sulphuric acid Sulphuryl fluoride Systox... 

Sulphuryl fluoride T Any common metal at Some metals at elevated... 

The possibility of obtaining stable alkylcarbonium hexafluoro-antimonate salts by interaction of alkyl fluorides with antimony pentafluoride (neat or in sulphur dioxide and later in sulphuryl fluoride or sulphuryl chloride fluoride solution) was then evaluated in detail, extending the investigations to all isomeric C3-, C4-, C5- alkyl fluorides. 

Solid sulphur, selenium, and tellurium inflame in fluorine gas at ordinary temp. sulphur burns to the hexafluoride, SF6. The reactivity of sulphur or selenium with fluorine persists at —187°, but tellurium is without action at this temp. Hydrogen sulphide and sulphur dioxide also burn in the gas—the former produces hydrogen fluoride and sulphur fluoride. Each bubble of sulphur dioxide led into a jar of fluorine produces an explosion and thionyl fluoride, S0F2, is formed but if the fluorine be led into the sulphur dioxide, there is no action until the sulphur dioxide has reached a certain partial pressure when all explodes. If the fluorine be led into an atm. of sulphur dioxide at the temp, of the reaction, sulphuryl fluoride, S02F2, is formed quietly without violence. Sulphuric acid is scarcely affected by fluorine. 

The combustion of fluorine in moist hydrogen sulphide or the interaction of fluorine and dry hydrogen sulphide in a glass vessel (the last-named supplying the necessary oxygen) also gives rise to a mixture of sulphuryl fluoride with thionyl fluoride, sulphur hexafluoride and silicon fluoride.3... 

Sulphuryl fluoride is a colourless, odourless gas, which liquefies at —52° C. and solidifies in liquid air, melting then at —120° C. It is remarkably stable, and dissolves unchanged in water to the extent of approximately 1 volume in 10 at the ordinary temperature alcohol absorbs about three volumes of the gas at the ordinary temperature. 

It attacks glass at a red heat, giving silicon tetrafluoride and sulphur trioxide. Carbon and boron are without action on the gas at a red heat, but sodium at a temperature considerably above the melting-point causes gradual decomposition with absorption. Hydrogen sulphide, aided by heat, attacks both thionyl and sulphuryl fluorides, inducing decomposition.1... 

Fluorosulphonic acid is a mobile, colourless liquid, boiling at 162-6° C. it possesses only a slight pungent odour, and has little action on the dry skin. Distillation is accompanied by only very slight decomposition, probably into sulphuryl fluoride and sulphuric acid. Water causes vigorous decomposition dry glass is but slightly affected lead is rapidly converted into lead sulphate and fluoride, whilst with sulphur, sulphur dioxide and hydrofluoric acid arc slowly produced.3... 

Sulphuryl fluoride in the absence of air reacts with selenium vapour in a glass vessel according to the equation 8... 

When heated with sulphuryl chloride, S02C12, anhydrous ferric chloride is obtained, large crystals being formed in favourable circumstances.9 Sulphuryl fluoride, S02F2, is without action on iron, even at red heat.10... 

Sulphur hexafluoride Sulphuric acid Sulphur monochloride Sulphuryl fluoride 2, 4, 5-T Tantalum TEDP... 

An effective route to some sulphur(IV) compounds involves fluoride-ion-initiated reactions of a fluoroalkene with sulphur(IV) fluoride [249] (Figure 8.90). Alternatively, similar reactions with sulphuryl fluoride give perfluorodialkylsulphones or perfluoroalk-anesulphonyl fluorides [250] (Figure 8.91). 

Sulphur dioxide solutions of XeFj behaved similarly SOj is itself an effective reducer and the addition of a trace of acid led to very rapid production of xenon and sulphuryl fluoride at low temperatures... 

Sulphuryl fluoride dissolves rapidly in HzO, and may be removed from solution by dynamic vacuum.85 Hydrolysis is slow in water but rapid in basic solutions, the net reaction being ... 

The reaction of XeF2 with imidobis(sulphuryl fluoride) in CF2C12 at 0 °C yields the new compound fluoro[imidobis(sulphuryl fluoride)]xenon, FXeN-(S02F)2.20 This is the first example of the preparation, under ordinary laboratory conditions, of a compound containing Xe bonded to an element other than O or F. The new compound is apparently stable at room... 

A study of the reaction of fluorine with SO2 has shown that at temperatures up to 500 °C the reaction rapidly gives sulphuryl fluoride. If the quantity of fluorine is large enough, then SFe is formed, but only slowly, and via the formation of thionyl fluoride, thionyl tetrafluoride, and pentafluorosulphur hypo-fluorite. The fluorination of SO2 by Xep2, in the presence of compounds of the type MX (M = NMe4, Cs, or K X = F or Cl), has been studied. A variety of products were observed (Table 2) and reaction mechanisms were proposed in which the Xep2 functions as a weak Lewis acid. 

A d.t.a. study has shown that in the temperature range 500—800 C, SF reacts with oxides of Group II and III elements with considerable evolution of heat. The gaseous products were found to be SO2 and sulphuryl fluoride, with thionyl fluoride being observed in the reaction of AI2O3 with SF. The first matrix-isolation and i.r. spectral identification of the SFs radical, as produced by the vacuum-u.v. photolysis of SF and its derivatives, and by controlled attack by fluorine atom on SF4, has been announced. Compounds of the type SF5— N=S(F)NR2 and SF5—N=S(NR2)2 have been prepared by Si—bond-cleavage reactions of silylamines with pentafluorosulphur-sulphur difluoride imide the... 

The hydrolysis of sulphuryl fluoride in alkali follows the rate law Rate = [S02F2](A w + Ar[OH])... 

The radial distribution of sulphuryl fluoride (after Hagen, Coussens and Hedberg,... 

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