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| CAS No.: | 5714-22-7 |
|---|---|
| Name: | DISULPHUR DECAFLUORIDE |
| Article Data: | 21 |
| Molecular Structure: | |
|
|
|
| Formula: | F10S2 |
| Molecular Weight: | 254.116 |
| Synonyms: | Decafluorodisulfur;Disulfur decafluoride; Disulfur decafluoride (S2F10) |
| Density: | g/cm3 |
| Melting Point: | -55°C |
| Boiling Point: | 29°C |
| Flash Point: | °C |
| Solubility: | insoluble |
| Appearance: | Colorless liquid with sulfur dioxide-like odor |
| Hazard Symbols: | TLV: ceiling 0.01 ppm. |
| Risk Codes: | R26/27/28; R34 |
| 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. |
| PSA: | 50.60000 |
| LogP: | 5.49840 |
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- 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 | 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% |
- 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 | 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 |
- 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 | 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 |
- 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 | Yield |
|---|---|
| In neat (no solvent) F2 and burning sulfur;; | |
| In neat (no solvent) F2 and burning sulfur;; |
- 5714-22-7
disulfur decafluoride
| 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; |
- 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 | 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) |
- 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 | 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;; |
| 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) |
| Conditions | Yield |
|---|---|
| In not given | |
| With nitrogen In neat (no solvent) | |
| In neat (no solvent) | |
| In not given |
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 | 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; |
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- Total:21 Page 1 of 1 1
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Chemistry
Molecule structure of Sulfur pentafluoride (CAS NO.5714-22-7) :
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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
History
Disulfur decafluoride (S2F10) is a gas discovered in 1934 by Denbigh and Whytlaw-Gray.
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. |
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: 
T
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
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
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.