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CAS No.: | 76-16-4 |
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Name: | Hexafluoroethane |
Molecular Structure: | |
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Formula: | C2F6 |
Molecular Weight: | 138.012 |
Synonyms: | Ethane,hexafluoro- (8CI,9CI);Ethyl hexafluoride;F 116;F 116 (fluorocarbon);FC 116;FC 1160;Freon 116;HFC 116;Hexafluoroethane;PFC 116;Perfluorocarbon 116;Perfluoroethane;R 116; |
EINECS: | 200-939-8 |
Density: | 1.463 g/cm3 |
Melting Point: | -100 °C(lit.) |
Boiling Point: | -78 °C(lit.) |
Appearance: | colourless gas |
Hazard Symbols: |
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Safety: | 38 |
Transport Information: | UN 2193 2.2 |
PSA: | 0.00000 |
LogP: | 2.11100 |
1,1,1,2-tetrafluoroethane
A
1,1,1,2,2-pentafluoroethane
B
Difluoromethane
C
trifluoromethan
D
Hexafluoroethane
Conditions | Yield |
---|---|
With fluorine at 200 - 250℃; Product distribution; Further Variations:; Reagents; | A 1.1% B 0.9% C 0.4% D 97.6% |
Perfluoromethyl azide
A
carbon tetrafluoride
B
Hexafluoroethane
C
difluoramino trifluoromethane
Conditions | Yield |
---|---|
With fluorine at 70℃; for 48h; | A 6% B 2% C 92% |
polytetrafluoroethylene
Te4(2+)*2AsF6(1-)=Te4(AsF6)2
A
Hexafluoroethane
B
bis(pentafluoroethyl)tellurium
C
bis(pentafluoroethyl) ditelluride
D
pentafluoroethyl(nonafluorobutyl)tellurium
E
arsenic(III) fluoride
Conditions | Yield |
---|---|
at 100°C for 11 d, at 15 atm in a Monel reactor; | A n/a B 87% C 12.2% D 0.5% E n/a |
at 100°C for 11 d, at 15 atm in a Monel reactor; | A n/a B 87% C 12.2% D 0.5% E n/a |
at 100°C for 11 d, at 15 atm in a Monel reactor; | A n/a B 87% C 12.2% D 0.5% E n/a |
iodotrifluoromethane
A
rhodium iodo carbonyl (triphenylphosphine)2 complex
B
Hexafluoroethane
Conditions | Yield |
---|---|
In tetrahydrofuran a suspn. of Rh complex in THF and CF3I in 1:2 molar ratio sealed in vacuo in a Pyrex reaction tube was either stirred or shaken for 4 h at 20°C; volatiles were removed under vac., trapped at -196°C and analyzed by GLC, residue was chromd. using hexane followed by benzene or CHCl3 as eluent, and recrystd. from a mixt. of either CHCl3 and EtOH or benzene and MeOH; | A 44% B 79% |
In tetrahydrofuran a suspn. of Rh complex in THF and CF3I in 1:1 molar ratio sealed in vacuo in a Pyrex reaction tube was either stirred or shaken for 50 h at 20°C; 43% of the starting solvate was recovered; volatiles were removed under vac., trapped at -196°C and analyzed by GLC, residue was chromd. using hexane followed by benzene or CHCl3 as eluent, and recrystd. from a mixt. of either CHCl3 and EtOH or benzene and MeOH; | A 26% B 46% |
1,1,2-Trichloro-1,2,2-trifluoroethane
A
Hexafluoroethane
B
Chloropentafluoroethane
C
1,2-dichloro-1,1,2,2-tetrafluoroethane
Conditions | Yield |
---|---|
With chromium fluoride; magnesium fluoride; hydrogen fluoride at 250 - 500℃; Product distribution; | A 3% B 78% C 19% |
tetrafluorohydrazine
pentafluoro(1,1,2,2,2-pentafluoroethyl)-λ6-sulfane
A
carbon tetrafluoride
B
Hexafluoroethane
C
Perfluoroethylamine
D
sulfur tetrafluoride
E
sulphur hexafluoride
Conditions | Yield |
---|---|
NF3 formed too; | A n/a B n/a C 70% D n/a E n/a |
NF3 formed too; | A n/a B n/a C 70% D n/a E n/a |
(E)-1,2-difluoroethene
Hexafluoroacetone
A
Hexafluoroethane
B
1,1,1,2,3,4,4,4-octafluorobutane
cis-2,2-bis(trifluoromethyl)-3,4-difluoro-oxetan
trans-2,2-bis(trifluoromethyl)-3,4-difluoro-oxetan
Conditions | Yield |
---|---|
for 144h; Irradiation; | A 7 mg B 0.3% C 26% D 69% |
Ethanesulfonamide
A
Hexafluoroethane
B
ethanesulfonyl fluoride
C
Trifluoromethanesulfonyl fluoride
D
pentafluoroethanesulfonyl fluoride
Conditions | Yield |
---|---|
With hydrogen fluoride current: 4.5 to 5.5 V; 0.3 to 0.6 Adm-2; Further byproducts given; | A 2.1% B 3.1% C n/a D 54.9% |
Conditions | Yield |
---|---|
With silver for 1h; Product distribution; Irradiation; further metal; addition of NO; investigation of isotopic selectivity; | A n/a B 54% |
cis-2,3-difluoro-5,6-bis(trifluoromethyl)-2,3-dihydro-p-dioxin
A
Hexafluoroethane
B
(Z)-1,2-difluoro-ethene
C
(E)-1,2-difluoroethene
D
1,1,1,4,4,4-hexafluoro-2,3-butanedione
Conditions | Yield |
---|---|
at 610℃; Product distribution; various reaction conditions; | A 31% B 46% C 34% D 18% |
Reported in EPA TSCA Inventory.
The Hexafluoroethane ,its cas register number is 76-16-4.It also can be called as Perfluoroethane and the IUPAC name about this chemicals is 1,1,1,2,2,2-Hexafluoroethane .It belongs to the refrigerants and organics.Following are the chemical properties about this chemicals: (1)Index of Refraction: 1.202 ; (2)Molar Refractivity: 12.22 cm3 ; (3)Molar Volume: 94.3 cm3 ; (4)Surface Tension: 8 dyne/cm ; (5)Enthalpy of Vaporization: 16.15 kJ/mol ; (6)Vapour Pressure: 23700 mmHg at 25°C .It is chemically inert in many situations, but can react violently with strong reducing agents such as the very active metals and the active metals. Can react with strong oxidizing agents or weaker oxidizing agents under extremes of temperature.
The Hexafluoroethane is used as a versatile etchant in semiconductor manufacturing. It can be used for selective etching of metal silicides and oxides versus their metal substrates and also for etching of silicon dioxide over silicon. In the using process, you need to wear suitable respiratory equipment in case of insufficient ventilation. Except these safty informations, there are also exist other data like WGK Germany is 3,RTECS is KI4110000,Hazard Note is Irritant and TSCA is T ,also HazardClass about it is 2.2.
The Hexafluoroethane is a colorless, odorless gas and is relatively inert. The mixture is nonflammable and nontoxic, though asphyxiation may occur because of displacement of oxygen. Under prolonged exposure to fire or intense heat the containers may rupture violently and rocket. This chemicals is chemically inert in many situations, but can react violently with strong reducing agents such as the very active metals and the active metals. It also can react with strong oxidizing agents or weaker oxidizing agents under extremes of temperature.
This chemicals can be described computed from structure:
(1)Canonical SMILES: C(C(F)(F)F)(F)(F)F
(2)InChI: InChI=1S/C2F6/c3-1(4,5)2(6,7)8
(3)InChIKey: WMIYKQLTONQJES-UHFFFAOYSA-
The most important thing about Hexafluoroethane is the toxicity, following is the form:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rat | LC | inhalation | > 20pph/2H (200000ppm) | Journal of Occupational Medicine. Vol. 4, Pg. 262, 1962. |