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Name |
Thionyl fluoride |
EINECS | 231-997-2 |
CAS No. | 7783-42-8 | Density | 1.758 g/cm3 |
PSA | 36.28000 | LogP | 1.36980 |
Solubility | Hydrolysis in water, soluble in ethanol and benzene | Melting Point |
-129 °C |
Formula | F2OS | Boiling Point | -43.8 °C |
Molecular Weight | 86.0622 | Flash Point | N/A |
Transport Information | N/A | Appearance | Colorless gas |
Safety | 36/37/39-45 | Risk Codes | 20-34 |
Molecular Structure | Hazard Symbols | C,F,T | |
Synonyms |
Sulfurdifluoride monoxide;Sulfur difluoride oxide;Sulfur fluoride oxide (SF2O);Sulfur oxide fluoride (SOF2);Sulfur oxyfluoride (SOF2);Sulfurous oxyfluoride;Thionyl difluoride; |
Article Data | 123 |
Conditions | Yield |
---|---|
byproducts: VOF3; vigorous react.; | 97.8% |
Conditions | Yield |
---|---|
In further solvent(s) fluorination (N2 carrier gas (ratio F/N2 1:5), -50°C, als solvent freon-11); | 80% |
In neat (no solvent) at 0°C under inflammation (pale blue); further oxifluoride formed;; |
(trifluoroethenyl)pentafluorosulfur(VI)
A
fluorosulfonyl fluoride
B
bis(pentafluorosulfur)oxide
C
chlorotrifluoromethane
D
difluoro(pentafluorosulfanyl)acetyl fluoride
E
thionyl fluoride
Conditions | Yield |
---|---|
With oxygen 25°C, 12 h, further product; | A n/a B n/a C n/a D 72% E n/a |
With O2 25°C, 12 h, further product; | A n/a B n/a C n/a D 72% E n/a |
With ozone 25°C, 12 h, further product; | A n/a B n/a C n/a D 52% E n/a |
With O3 25°C, 12 h, further product; | A n/a B n/a C n/a D 52% E n/a |
(1,2-dibromotrifluoroethyl)pentafluorosulfur(VI)
A
fluorosulfonyl fluoride
B
disulfur decafluoride
C
1,2,2-tribromo-1,1,2-trifluoroethane
D
silicon tetrafluoride
E
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 |
thionyl chloride
1,2,2,2-tetrafluoro-ethanesulfonyl fluoride
triethylamine
A
thionyl chlorofluoride
B
1-chlorotetrafluoroethanesulfonyl chloride
C
thionyl fluoride
Conditions | Yield |
---|---|
-70°C; | A n/a B 47% C n/a |
-70°C; | A n/a B 47% C n/a |
chlorine fluorosulfate
sulfur tetrafluoride
A
SF4(Cl)OSO2F
B
thionyl fluoride
Conditions | Yield |
---|---|
In neat (no solvent) ClOSO2F transferred under static vac. to FEP reactor, SF4 condensed andreactor placed in 0°C bath and left for 1.5 h; reactor cooled to -95°C, volatile materials pumped from -95 to -70°C, reactor allowed to warm to room temp., volatile materials pumped into -196°C trap and fractionated, product refractionated through -63°C trap; | A 46% B n/a |
bis(pentafluorosulfur) peroxide
sulfur dioxide
A
thionyl tetrafluoride
B
pentafluorosulfur fluorosulfonate
C
sulfur trioxide
D
thionyl fluoride
E
sulphur hexafluoride
Conditions | Yield |
---|---|
byproducts: SiF4, sulfur; other Radiation; photochemical reaction with 253.7 nm radiation, 48 h; | A n/a B 45% C n/a D n/a E n/a |
thiocyanogen
fluorine
A
thiazyl trifluoride
B
sulphur cyanide pentafluoride
C
sulfur tetrafluoride
D
thionyl fluoride
E
sulphur hexafluoride
Conditions | Yield |
---|---|
In further solvent(s) byproducts: (FCN)3; reactn. of a soln. of dirhodane in FCl2C-CClF2 with diluted F2 (F2:N2 0 1:10); cooled down to -183°C; solvent removed by condensation; mixt. condensed to aq. KOH-soln. at room temp. to remove SF4, SOF and (FCN)3; sepn. by fractionated condensation at -127°C, -140°C, -196°C; | A 8% B 5% C 30% D 40% E 3% |
nitrogen trifluoride
sulfur trioxide
A
fluorosulfonyl fluoride
C
thionyl fluoride
D
sulphur hexafluoride
Conditions | Yield |
---|---|
byproducts: NO, NO2; 520 °C, nickel tube; | A 30% B n/a C 4% D <1 |
Conditions | Yield |
---|---|
In liquid sulphur dioxide | 15% |
Reported in EPA TSCA Inventory.
OSHA PEL: TWA 2.5 mg(F)/m3
ACGIH TLV: TWA 2.5 mg(F)/m3; BEI: 3 mg/g creatinine of fluorides in urine prior to shift; 10 mg/g creatinine of fluorides in urine at end of shift.
NIOSH REL: (Inorganic Fluorides) TWA 2.5 mg(F)/m3
The Thionyl fluoride with CAS registry number of 7783-42-8 is also known as Sulfur difluoride monoxide. The systematic name is Thionyl difluoride. Its EINECS registry number is 231-997-2. In addition, the formula is F2OS and the molecular weight is 86.06. This chemical is a colorless gas. Besides, it is a a useful reagent as the related derivative.
Physical properties about Thionyl fluoride are: (1)ACD/LogP: 0.16; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.16; (4)ACD/LogD (pH 7.4): 0.16; (5)ACD/BCF (pH 5.5): 1; (6)ACD/BCF (pH 7.4): 1; (7)Polar Surface Area: 36.28Å2; (8)Index of Refraction: 1.376; (9)Molar Refractivity: 11.23 cm3; (10)Molar Volume: 48.9 cm3; (11)Polarizability: 4.45×10-24cm3; (12)Surface Tension: 38.7 dyne/cm; (13)Density: 1.758 g/cm3; (14)Flash Point: °C; (15)Enthalpy of Vaporization: 21.8 kJ/mol; (16)Boiling Point: °C at 760 mmHg; (17)Vapour Pressure: 7510 mmHg at 25 °C.
Preparation of Thionyl fluoride: it is prepared by the reaction of thionyl chloride with fluoride sources such as antimony trifluoride.
3SOCl2+2SbF3→3SOF2+2SbCl3
When you are using this chemical, please be cautious about it. As a chemical, it is harmful by inhalation and may cause burns. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of accident or if you feel unwell seek medical advice immediately.
You can still convert the following datas into molecular structure:
1. Canonical SMILES: O=S(F)F
2. InChI: InChI=1S/F2OS/c1-4(2)3
3. InChIKey: LSJNBGSOIVSBBR-UHFFFAOYSA-N
The toxicity data is as follows:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LCLo | inhalation | 260ppm/1H (260ppm) | LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Archives des Maladies Professionnelles de Medecine du Travail et de Securite Sociale. Vol. 34, Pg. 581, 1973. |
rabbit | LCLo | inhalation | 1000ppm/1H (1000ppm) | LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Archives des Maladies Professionnelles de Medecine du Travail et de Securite Sociale. Vol. 34, Pg. 581, 1973. |