5714-22-7

Basic information

• Product Name: DISULPHUR DECAFLUORIDE
• Synonyms: DISULFUR DECAFLUORIDE;DISULPHUR DECAFLUORIDE;Sulfur pentafluoride;Sulfur decafluoride;pentafluoruredesoufre;S2F10;sulphurdecafluoride;sulphurpentafluoride
• CAS NO: 5714-22-7
• Molecular Formula: F₁₀S₂
• Molecular Weight: 254.11
• EINECS: 227-204-4
• Mol File: 5714-22-7.mol
• Article Data: 2

Chemical Properties

• Melting Point: -55°C
• Boiling Point: 29°C
• Flash Point: °C
• Appearance: /liquid
• Density: 2.080
• Water Solubility: insoluble H2O [HAW93]
• CAS DataBase Reference: DISULPHUR DECAFLUORIDE(CAS DataBase Reference)
• NIST Chemistry Reference: DISULPHUR DECAFLUORIDE(5714-22-7)
• EPA Substance Registry System: DISULPHUR DECAFLUORIDE(5714-22-7)

Safety Data

• Hazard Codes: T
• Statements: 26/27/28-34
• Safety Statements: 26-36/37/39-45
• RIDADR: 3287
• HazardClass: 6.1(a)
• PackingGroup: I
• Hazardous Substances Data: 5714-22-7(Hazardous Substances Data)

Usage

Chemical Properties

Different sources of media describe the Chemical Properties of 5714-22-7 differently. You can refer to the following data:
1. Colorless gas; SO2 odor. Insoluble in water.
2. Sulfur pentafluoride is a colorless liquid or gas (above 29°C). Odor like sulfur dioxide. Noncombustible liquid and nonflammable gas.

General Description

Colorless volatile liquid or gas with an odor like sulfur dioxide. Mp: -92°C; bp: 29°C. Density: 2.08 g cm-3. Insoluble in water. Very toxic by inhalation.

Reactivity Profile

DISULPHUR DECAFLUORIDE is non-combustible. Decomposes when heated above 400°C in air to generate toxic and corrosive fumes of sulfur oxides and sulfur fluorides. Shows little chemical reactivity at room conditions. Acts as a strong oxidizing agent and as a fluorinating agent at elevated temperature as DISULPHUR DECAFLUORIDE begins to break down. Reacts rapidly with molten caustics such as NaOH or KOH.

Health Hazard

Sulfur pentafluoride is a severe pulmonary irritant in animals; severe exposure is expected to cause the same effect in humans.

Safety Profile

Poison by intravenous route. Moderately toxic by inhalation. When heated to decomposition it emits very toxic fumes of Fand SOx. See also FLUORIDES and SULFIDES.

Potential Exposure

Sulfur pentafluoride is encountered as a by-product in the manufacture of sulfur hexafluoride, which is made by the direct fluorination of sulfur or sulfur dioxide.

Source

Production by-product of synthesis of sulfur hexafluoride.

Shipping

UN3287 Toxic liquids, inorganic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.

Incompatibilities

Violent reaction with many compounds, including reducing agents; chemically active metals; combustible materials, strong acids, alkaline earth sulfides, aluminum carbides, aluminum, amines, calcium sulfide, carbides, chlorine trifluoride, glycerin, hydrides, hydrochloric acid, hydrogen peroxide, hydrogen sulfide, hydroxylamine, magnesium, metal powders, metal sulfides, molybdenum, phenylhydrazine, phosphorous red/friction, phosphorous trichloride, silicon, sulfides, sulfur, sulfur dioxide, sulfur/friction, sulfuric acid, tungsten, hydrogen trisulfide. Fluorides form explosive and toxic gases on contact with strong acids and acid fumes. Reacts with strong caustics. Decomposed in temperatures above 400C forming toxic and corrosive fumes of sulfur oxides and sulfur fluorides; as this chemical decomposes, it acts as both a strong oxidizer and a fluorinating agent.

Waste Disposal

Return refillable compressed gas cylinders to supplier. Nonrefillable cylinders should be disposed of in accordance with local, state and federal regulations. Allow remaining gas to vent slowly into atmosphere in an unconfined area or exhaust hood. Refillable-type cylinders should be returned to original supplier with any valve caps and outlet plugs secured and valve protection caps in place

InChI:InChI=1/10FH.2H2S/h10*1H;2*1H2/q;;;;;;;;;;2*+2/p-10

Synthetic route

fluorine (7782-41-4) + sulfur (7704-34-9) → disulfur decafluoride (5714-22-7) + disulfur difluoride (13709-35-8) + sulfur tetrafluoride (7783-60-0) + hydrogen fluoride (7664-39-3) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) byproducts: OF2; introduction of F2 into steel chamber, sulfur in compartments; detailed description of apparatus and handling given;; first passing through Ni (or Monel) tube (400°C); second Cu column (H2O sprayed); passed into steel column (containing carbon/Fe shavings; aq. NaOH sprayed); dried in column (containing solid NaOH, BaO or P2O5);;	A n/a B n/a C n/a D n/a E 87%

(1,2-dibromotrifluoroethyl)pentafluorosulfur(VI) (22687-88-3) → fluorosulfonyl fluoride (640723-20-2, 2699-79-8, 12769-73-2) + disulfur decafluoride (5714-22-7) + 1,2,2-tribromo-1,1,2-trifluoroethane (354-49-4) + silicon tetrafluoride (7783-61-1) + thionyl fluoride (7783-42-8)

Conditions	Yield
Irradiation (UV/VIS); irradiated (Hanovia S 500 lamp) in silica ampule, 20 h, further products;	A n/a B n/a C 49% D n/a E n/a

pentafluorosulfanyl chloride (13780-57-9) + sulfur dioxide (7446-09-5) → sulfuryl dichloride (7791-25-5) + fluorosulfonyl fluoride (640723-20-2, 2699-79-8, 12769-73-2) + disulfur decafluoride (5714-22-7) + pentafluorosulfur fluorosulfonate (81439-35-2) + thionyl fluoride (7783-42-8)

Conditions	Yield
byproducts: SiF4; other Radiation; photochemical reaction with 253.7 nm radiation, 48 h, in glass vessel;	A n/a B n/a C <1 D n/a E n/a

fluorine (7782-41-4) + sulfur (7704-34-9) → disulfur decafluoride (5714-22-7) + disulfur difluoride (13709-35-8) + sulfur tetrafluoride (7783-60-0) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) F2 and burning sulfur;;
In neat (no solvent) F2 and burning sulfur;;

tetrakis(pentafluorosulfanyl)hydrazine → disulfur decafluoride (5714-22-7)

Conditions	Yield
With chloroform-d1 In chloroform-d1 rapid decompn. to S2F10 and other products in CDCl3; the same decompn. takes place in other nonperhalogenated solvents;

fluorine (7782-41-4) + sulfur (7704-34-9) → disulfur decafluoride (5714-22-7) + sulfur difluoride (13814-25-0) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) byproducts: silicium fluorides; passing F2 over sulfur in copper tube (atm. of dry nitrogen);; storage over concd. aq. KOH for some time (removal of SF2 and silicium fluorides); fractionate distillation (removal of main product SF6);;
In neat (no solvent)

fluorine (7782-41-4) + sulfur (7704-34-9) → fluorosulfonyl fluoride (640723-20-2, 2699-79-8, 12769-73-2) + disulfur decafluoride (5714-22-7) + hydrogen fluoride (7664-39-3) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) byproducts: CF4; introduction of F2 (from electrolysis/graphite anode); abs. exclusion of air (N2 atm.); detailed description of apparatus and handling given;; condensed (liquid air); storage over aq. KOH (for weeks); repeated fractionating (and drying); passing over liquid mixture of metallic Na/K (removal of SO2F2;;
In neat (no solvent) byproducts: CF4; introduction of F2 (from electrolysis/graphite anode); abs. exclusion of air (N2 atm.); detailed description of apparatus and handling given;; condensed (liquid air); storage over aq. KOH (for weeks); repeated fractionating (and drying); passing over liquid mixture of metallic Na/K (removal of SO2F2;;

fluorine (7782-41-4) + sulfur (7704-34-9) → disulfur decafluoride (5714-22-7) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) combustion of S in F2 stream;; very small yield of S2F10; further sulfur fluorides formed;;
In neat (no solvent) combustion of S in F2 stream;; very small yield of S2F10; further sulfur fluorides formed;;
In neat (no solvent)

fluorine (7782-41-4) + sulfur (7704-34-9) → disulfur decafluoride (5714-22-7)

Conditions	Yield
In not given
With nitrogen In neat (no solvent)
In neat (no solvent)
In not given

calcium fluoride → disulfur decafluoride (5714-22-7) + thiocarbonyl fluoride (420-32-6) + trifluoromethylsulfenyl fluoride (17742-04-0) + sulfur tetrafluoride (7783-60-0) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
Electric Arc; with sulphur-containing inorganic compounds or salts in presence of inert compounds as TiO2, ZrO2, SiO2, K2B2O4, B2O3, Na2B2O7, Al2O3, FeAl2O4, FeTiO3; 1500-3000°C; under inert atm.; further products;
Electric Arc; with sulphur-containing inorganic compounds or salts in presence of inert compounds as TiO2, ZrO2, SiO2, K2B2O4, B2O3, Na2B2O7, Al2O3, FeAl2O4, FeTiO3; 1500-3000°C; under inert atm.; further products;

pentafluorosulfanyl chloride (13780-57-9) → disulfur decafluoride (5714-22-7)

Conditions	Yield
With hydrogen In neat (no solvent) other Radiation; photochemical reduction;;
In neat (no solvent)

sulphur hexafluoride (2551-62-4) → disulfur decafluoride (5714-22-7)

Conditions	Yield
In neat (no solvent) passing SF6 over superheated catalysts;;	0%
In neat (no solvent)

fluorine (7782-41-4) + sulfur (7704-34-9) → disulfur decafluoride (5714-22-7) + disulfur difluoride + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) passing F2 over sulfur;; cooled (liquid air); fractionated;;

iodotrifluoromethane (2314-97-8) + (trifluoroethenyl)pentafluorosulfur(VI) (1186-51-2) → fluorosulfonyl fluoride (640723-20-2, 2699-79-8, 12769-73-2) + disulfur decafluoride (5714-22-7) + Hexafluoroethane (76-16-4) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
Irradiation (UV/VIS); preventing photolysis of liq. react. product, further products;

(trifluoroethenyl)pentafluorosulfur(VI) (1186-51-2) → fluorosulfonyl fluoride (640723-20-2, 2699-79-8, 12769-73-2) + disulfur decafluoride (5714-22-7) + silicon tetrafluoride (7783-61-1) + thionyl fluoride (7783-42-8) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
Irradiation (UV/VIS); UV photolysis in silaca ampule for 500 h, unidentified fluorocarbons also formed;

(trifluoroethenyl)pentafluorosulfur(VI) (1186-51-2) → fluorosulfonyl fluoride (640723-20-2, 2699-79-8, 12769-73-2) + disulfur decafluoride (5714-22-7) + silicon tetrafluoride (7783-61-1) + thionyl fluoride (7783-42-8)

Conditions	Yield
other Radiation; γ-radiolyis, 408 h;

{1,2-difluoro-1,2-bis(trifluoromethyl)-1,2-ethanediyl}bis(pentafluorosulfur(VI)) (63011-82-5) → disulfur decafluoride (5714-22-7) + octafluoro-2-butene (360-89-4, 172368-67-1)

Conditions	Yield
50°C, 48 h, complete react at 100°C, 16 h; detected by 19F NMR spectr.;

diboron trisulfide + osmium hexafluoride (13768-38-2) → osmium + disulfur decafluoride (5714-22-7) + SF3(1+)*OsF6(1-)=[SF3][OsF6] (111236-88-5) + sulfur tetrafluoride (7783-60-0) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) byproducts: BF3; 5% excess of OsF6 added at liquid-nitrogen temp. to B2S3, heated at 210°C for 4-6 h; volatiles determined by IR, solids did by X-ray powder diffraction;

iridium hexafluoride (7783-75-7) + diboron trisulfide → disulfur decafluoride (5714-22-7) + SF3(1+)*IrF6(1-)=[SF3][IrF6] (111172-74-8) + sulfur tetrafluoride (7783-60-0) + iridium + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) byproducts: BF3; 5% excess of IrF6 added at liquid-nitrogen temp. to B2S3, heated at 210°C for 4-6 h; volatiles determined by IR, solids did by X-ray powder diffraction;

osmium hexafluoride (13768-38-2) + zinc sulfide → osmium + disulfur decafluoride (5714-22-7) + SF3(1+)*OsF6(1-)=[SF3][OsF6] (111236-88-5) + sulfur tetrafluoride (7783-60-0) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) 5% excess of OsF6 added at liquid-nitrogen temp. to ZnS, heated at 300°C for 7-11 h; volatiles determined by IR, solids did by X-ray powder diffraction;

iridium hexafluoride (7783-75-7) + zinc sulfide → disulfur decafluoride (5714-22-7) + SF3(1+)*IrF6(1-)=[SF3][IrF6] (111172-74-8) + sulfur tetrafluoride (7783-60-0) + iridium + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) 5% excess of IrF6 added at liquid-nitrogen temp. to ZnS, heated at 300°C for 7-11 h; volatiles determined by IR, solids did by X-ray powder diffraction;

pentafluoronitrosulfane (508233-73-6) → disulfur decafluoride (5714-22-7) + thionyl tetrafluoride (13709-54-1) + Nitrogen dioxide (10102-44-0)

Conditions	Yield
In neat (no solvent, gas phase) Kinetics; byproducts: FNO; decompn. at room temp.; not isolated;

pentafluorosulfanyl bromide (15607-89-3) + Nitrogen dioxide (10102-44-0) → disulfur decafluoride (5714-22-7) + pentafluoronitrosulfane (508233-73-6) + thionyl tetrafluoride (13709-54-1) + sulfur tetrafluoride (7783-60-0) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
In neat (no solvent) byproducts: Br2, FNO; Irradiation (UV/VIS); irradiated for 12 h with λmax = 420 nm; condensed into a cylinder held at -196°C, vac. transferred into another cylinder, condensed several times (trap-to-trap); obtained with apurity of ca 98%;

disulfur decafluoride (5714-22-7) + bromine (7726-95-6) → pentafluorosulfanyl bromide (15607-89-3)

Conditions	Yield
byproducts: SF6, SF4; 150°C, 16 h, procedure described by T. A. Kovacina, A. D. Berry,and W. B. Fox, J. Fluorine Chem., 7,430, (1976); trap-to-trap fractionation (-63°C, -116°C, -196°C), addn. of Hg to the trap at 0°C;	85%
In neat (no solvent) reaction; distn.;

disulfur decafluoride (5714-22-7) + sulfur dioxide (7446-09-5) → fluorosulfonyl fluoride (640723-20-2, 2699-79-8, 12769-73-2) + pentafluorosulfur fluorosulfonate (81439-35-2) + sulfur trioxide (7446-11-9) + thionyl fluoride (7783-42-8) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
byproducts: SiF4, sulfur; other Radiation; photochemical reaction with 253.7 nm radiation, in glass vessel;

disulfur decafluoride (5714-22-7) + trifluoronitrosomethane (334-99-6) → cis-hexafluoroazomethane (73513-59-4)

Conditions	Yield
at 140-150°C (23 h);
at 140-150°C (23 h);

disulfur decafluoride (5714-22-7) + trifluoronitrosomethane (334-99-6) → trifluoronitromethane (335-02-4)

Conditions	Yield
heating to 140-150°C 23 h;
heating to 140-150°C 23 h;

disulfur decafluoride (5714-22-7) + sodium (7440-23-5) → sodium fluoride

Conditions	Yield
In neat (no solvent) Kinetics; byproducts: Na sulfide; in quartz ball; presence of Pt; combustion under inflammation;;	>99
In neat (no solvent)

disulfur decafluoride (5714-22-7) + hydrogen (1333-74-0) → hydrogen fluoride (7664-39-3) + hydrogen sulfide (7783-06-4)

Conditions	Yield
In neat (no solvent, gas phase) Kinetics; Electrochem. Process; electric sparks in glass vessel (covered with KOH);;
In neat (no solvent, gas phase)

disulfur decafluoride (5714-22-7) → sulfur dioxide (7446-09-5)

Conditions	Yield
With quartz In neat (no solvent) byproducts: SiF4; decompn. at red heat; (in presence of S at lower temps.);;
In neat (no solvent)

disulfur decafluoride (5714-22-7) → sulfur (7704-34-9)

Conditions	Yield
With Hg In neat (no solvent) Kinetics; byproducts: Hg fluoride, Hg sulfide; red heat; in quartz ball;;
With Cu In neat (no solvent) Kinetics; byproducts: Cu fluoride, Cu sulfide; red heat; shavings in quartz ball;;
With Pt In neat (no solvent) Kinetics; byproducts: Pt fluoride; red heat; shavings in quartz ball;;
With grease In neat (no solvent) decompn. of stop cock grease (discoloration to black);;
In neat (no solvent)

disulfur decafluoride (5714-22-7) → sulfur tetrafluoride (7783-60-0) + sulphur hexafluoride (2551-62-4)

Conditions	Yield
With Ni or monel In neat (no solvent) Kinetics; decompn. on passing through Ni (or monel) tube at 160-180°C; mechanism discussed;;
With Ni or monel In neat (no solvent) decompn. on passing through Ni (or monel) tube at 400°C;;
In neat (no solvent)

disulfur decafluoride (5714-22-7) → pentafluorosulfanyl chloride (13780-57-9)

Conditions	Yield
With chlorine In neat (no solvent) passing Cl2 and S2F10 through tube at 350°C;;
With chlorine In neat (no solvent) passing Cl2 and S2F10 through tube under reduced pressure;;	>99

disulfur decafluoride (5714-22-7) → sulfurpentafluoride (10546-01-7)

Conditions	Yield
In neat (no solvent) S2F10 mixed with Ne or Ar (1:1000); low-pressure flash thermolysis at 400°C; quenching in Ne matrix (at 6 K) or Ar matrix (at 16 K);

polytetrafluoroethylene (116-14-3) + disulfur decafluoride (5714-22-7) + 1,2-diiodotetrafluoroethane (354-65-4) → (2-iodotetrafluoroethyl)pentafluorosulfur(VI) (51480-07-0)

Conditions	Yield
equiv. mixt. of educts, 150 psi in Inocel autoclave, 150°, 4 h, good yield; 95% purity;
equiv. mixt. of educts, 150 psi in Inocel autoclave, 150°, 4 h, good yield; 95% purity;

polytetrafluoroethylene (116-14-3) + disulfur decafluoride (5714-22-7) + 1,2-diiodotetrafluoroethane (354-65-4) → (2-iodotetrafluoroethyl)pentafluorosulfur(VI) (51480-07-0) + (4-iodooctafluorobutyl)pentafluorosulfur(VI) (51549-94-1) + (6-iodododecafluorohexyl)pentafluorosulfur(VI) (51480-08-1) + (8-iodoperfluorooctylyl)pentafluorosulfur(VI) + (10-iodoperfluorodecyl)pentafluorosulfur(VI)

Conditions	Yield
heating the mixt. to 150°C for 3.5 h with intermittent injection of CF2=CF2, further products; distn., I(CF2CF2)nSF5 n>=4 detected by MS;
heating the mixt. to 150°C for 3.5 h with intermittent injection of CF2=CF2, further products; distn., I(CF2CF2)nSF5 n>=4 detected by MS;

polytetrafluoroethylene (116-14-3) + disulfur decafluoride (5714-22-7) + 1,2-diiodotetrafluoroethane (354-65-4) → I(CF2CF2)9SF5 + I(CF2CF2)6SF5 + I(CF2CF2)8SF5 + I(CF2CF2)7SF5 + (2-iodotetrafluoroethyl)pentafluorosulfur(VI) (51480-07-0)

Conditions	Yield
heating the mixt. to 150°C for 3.5 h with intermittent injection of CF2=CF2, further products; distn. I(CF2CF2)nSF5 n>=4 detected by MS;
heating the mixt. to 150°C for 3.5 h with intermittent injection of CF2=CF2, further products; distn. I(CF2CF2)nSF5 n>=4 detected by MS;

Upstream product

• 13780-57-9 pentafluorosulfanyl chloride 
• 7446-09-5 sulfur dioxide 
• 7782-41-4 fluorine 
• 7704-34-9 sulfur 
• 2551-62-4 sulfur(VI) hexafluoride 
• 2314-97-8 iodotrifluoromethane 
• 1186-51-2 (trifluoroethenyl)pentafluorosulfur(VI) 
• 13768-38-2 osmium hexafluoride 
• 7783-75-7 iridium hexafluoride 
• 508233-73-6 pentafluoronitrosulfane 
• 15607-89-3 pentafluorosulfanyl bromide 
• 10102-44-0 Nitrogen dioxide 
• 22687-88-3 (1,2-dibromotrifluoroethyl)pentafluorosulfur(VI) 
• 63011-82-5 {1,2-difluoro-1,2-bis(trifluoromethyl)-1,2-ethanediyl}bis(pentafluorosulfur(VI)) 

Downstream Products

• 640723-20-2 fluorosulfonyl fluoride 
• 81439-35-2 pentafluorosulfur fluorosulfonate 
• 7446-11-9 sulfur trioxide 
• 7783-42-8 thionyl fluoride 
• 2551-62-4 sulfur(VI) hexafluoride 
• 15607-89-3 pentafluorosulfanyl bromide 
• 7664-39-3 hydrogen fluoride 
• 7783-06-4 hydrogen sulfide 
• 7446-09-5 sulfur dioxide 
• 7704-34-9 sulfur 
• 7783-60-0 sulfur tetrafluoride 
• 13780-57-9 pentafluorosulfanyl chloride 

Relevant articles and documents

Pentafluoronitrosulfane, SF5NO2

The synthesis of pentafluoronitrosulfane, SF5NO2, is accomplished either by reacting N(SF5)3 with NO 2 or by the photolysis of a SF5Br/NO2 mixture using diazo lamps. The product is purified by treatment with CsF and repeated trap-to-trap condensation. The solid compound melts at -78°C, and the extrapolated boiling point is 9°C. SF5NO2 is characterized by 19F, 15N NMR, IR, Raman, and UV spectroscopy as well as by mass spectrometry. The molecular structure of SF 5NO2 is determined by gas electron diffraction. The molecule possesses C2v symmetry with the NO2 group staggering the equatorial S-F bonds and an extremely long 1.903(7) A S-N bond. Calculated bond enthalpies depend strongly on the computational method: 159 (MP2/6-311G++(3df)) and 87 kJ mol-1 (B3LYP/6-311++G-(3df)). The experimental geometry and vibrational spectrum are reproduced reasonably well by quantum chemical calculations.