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Sulfur pentafluoride

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Name

Sulfur pentafluoride

EINECS N/A
CAS No. 5714-22-7 Density g/cm3
PSA 50.60000 LogP 5.49840
Solubility insoluble Melting Point -55°C
Formula F10S2 Boiling Point 29°C
Molecular Weight 254.116 Flash Point °C
Transport Information N/A Appearance Colorless liquid with sulfur dioxide-like odor
Safety Poison by intravenous route. Moderately toxic by inhalation. When heated to decomposition it emits very toxic fumes of F and SOx. See also FLUORIDES and SULFIDES. Risk Codes R26/27/28; R34
Molecular Structure Molecular Structure of 5714-22-7 (DISULPHUR DECAFLUORIDE) Hazard Symbols TLV: ceiling 0.01 ppm.
Synonyms

Decafluorodisulfur;Disulfur decafluoride; Disulfur decafluoride (S2F10)

Article Data 21

Sulfur pentafluoride Synthetic route

7782-41-4

fluorine

7704-34-9

sulfur

A

5714-22-7

disulfur decafluoride

B

13709-35-8

disulfur difluoride

C

7783-60-0

sulfur tetrafluoride

D

7664-39-3

hydrogen fluoride

E

2551-62-4

sulphur hexafluoride

Conditions
ConditionsYield
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%
22687-88-3

(1,2-dibromotrifluoroethyl)pentafluorosulfur(VI)

A

640723-20-2, 2699-79-8, 12769-73-2

fluorosulfonyl fluoride

B

5714-22-7

disulfur decafluoride

C

354-49-4

1,2,2-tribromo-1,1,2-trifluoroethane

D

7783-61-1

silicon tetrafluoride

E

7783-42-8

thionyl fluoride

Conditions
ConditionsYield
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
13780-57-9

pentafluorosulfanyl chloride

7446-09-5

sulfur dioxide

A

7791-25-5

sulfuryl dichloride

B

640723-20-2, 2699-79-8, 12769-73-2

fluorosulfonyl fluoride

C

5714-22-7

disulfur decafluoride

D

81439-35-2

pentafluorosulfur fluorosulfonate

E

7783-42-8

thionyl fluoride

Conditions
ConditionsYield
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
7782-41-4

fluorine

7704-34-9

sulfur

A

5714-22-7

disulfur decafluoride

B

13709-35-8

disulfur difluoride

C

7783-60-0

sulfur tetrafluoride

D

2551-62-4

sulphur hexafluoride

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

tetrakis(pentafluorosulfanyl)hydrazine

5714-22-7

disulfur decafluoride

Conditions
ConditionsYield
With chloroform-d1 In chloroform-d1 rapid decompn. to S2F10 and other products in CDCl3; the same decompn. takes place in other nonperhalogenated solvents;
7782-41-4

fluorine

7704-34-9

sulfur

A

5714-22-7

disulfur decafluoride

B

13814-25-0

sulfur difluoride

C

2551-62-4

sulphur hexafluoride

Conditions
ConditionsYield
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)
7782-41-4

fluorine

7704-34-9

sulfur

A

640723-20-2, 2699-79-8, 12769-73-2

fluorosulfonyl fluoride

B

5714-22-7

disulfur decafluoride

C

7664-39-3

hydrogen fluoride

D

2551-62-4

sulphur hexafluoride

Conditions
ConditionsYield
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;;
7782-41-4

fluorine

7704-34-9

sulfur

A

5714-22-7

disulfur decafluoride

B

2551-62-4

sulphur hexafluoride

Conditions
ConditionsYield
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)
7782-41-4

fluorine

7704-34-9

sulfur

5714-22-7

disulfur decafluoride

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

calcium fluoride

A

5714-22-7

disulfur decafluoride

B

420-32-6

thiocarbonyl fluoride

C

17742-04-0

trifluoromethylsulfenyl fluoride

D

7783-60-0

sulfur tetrafluoride

E

2551-62-4

sulphur hexafluoride

Conditions
ConditionsYield
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;

Sulfur pentafluoride Chemical Properties

Molecule structure of Sulfur pentafluoride (CAS NO.5714-22-7) :

Molecular Weight: 254.114032 g/mol
Molecular Formula: F10S2 
Density: 2.08 g/cm3
Melting Point: -55 °C
Boiling Point: 29 °C
XLogP3-AA: 7.2
H-Bond Acceptor: 10
Exact Mass: 253.928173
MonoIsotopic Mass: 253.928173
Heavy Atom Count: 12
Complexity: 183 
Canonical SMILES: FS(F)(F)(F)(F)S(F)(F)(F)(F)F
InChI: InChI=1S/F10S2/c1-11(2,3,4,5)12(6,7,8,9)10
InChIKey: BPFZRKQDXVZTFD-UHFFFAOYSA-N
EINECS: 227-204-4

Sulfur pentafluoride History

 Disulfur decafluoride (S2F10) is a gas discovered in 1934 by Denbigh and Whytlaw-Gray.

Sulfur pentafluoride Toxicity Data With Reference

1.    

ihl-rat LC50:2 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
2.    

ihl-mus LC50:1 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
3.    

ihl-dog LC50 4 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
4.    

ivn-dog LDLo:1 mg/kg

    AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 8 (1953),436.
5.    

ihl-mky LC50:9 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
6.    

ihl-cat LC50:4500 mg/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
7.    

ihl-rbt LC50:4 g/m3/10M

    NTIS**    National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB158-508 .
8.    

ivn-rbt LDLo:5790 µg/kg

    AMIHBC    AMA Archives of Industrial Hygiene and Occupational Medicine. 8 (1953),436.

Sulfur pentafluoride Safety Profile

Poison by intravenous route. Moderately toxic by inhalation. When heated to decomposition it emits very toxic fumes of F and SOx. See also FLUORIDES and SULFIDES.
Hazard Codes: ToxicT
Risk Statements: 26/27/28-34 
R26/27/28:Very toxic by inhalation, in contact with skin and if swallowed. 
R34:Causes burns.
Safety Statements: 26-36/37/39-45 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: 3287
Hazard Note: Highly Toxic
HazardClass: 6.1(a)
PackingGroup: I

Sulfur pentafluoride Standards and Recommendations

OSHA PEL: CL 0.01 ppm
ACGIH TLV: CL 0.01 ppm
DFG MAK: 0.025 ppm (0.26 mg/m3)
NIOSH REL: (Sulfur Pentafluoride) CL 0.01 ppm

Sulfur pentafluoride Specification

 Sulfur pentafluoride (CAS NO.5714-22-7) is also called Disulfur decafluoride ; TL 70 ; Disulphur decafluoride ; Sulfur decafluoride ; Sulfur fluoride ; Sulfur fluoride (S2F10) . Sulfur pentafluoride (CAS NO.5714-22-7) is colorless volatile liquid or gas with an odor like sulfur dioxide. Each S of the S2F10 molecule is octahedral, and surrounded by 5 fluorines. It is insoluble in water and very toxic by inhalation. Sulfur pentafluoride (CAS NO.5714-22-7) 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 Sulfur pentafluoride (CAS NO.5714-22-7) begins to break down. Reacts rapidly with molten caustics such as NaOH or KOH. 

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