Octafluorocyclobutane supplier

Name
Octafluorocyclobutane
EINECS 204-075-2
CAS No. 115-25-3
Article Data60
CAS DataBase
Density 1.66 g/cm³
Solubility Slightly soluble in water
Melting Point -41.4 °C
Formula C₄F₈
Boiling Point -6 °C
Molecular Weight 200.031
Flash Point
Transport Information UN 1976
Appearance Colorless gas
Safety 23-38
Risk Codes
Molecular Structure
Hazard Symbols Xi
Synonyms Cyclobutane, octafluoro-;Octafluorocyclobutane;Perfluorocyclobutane;Freon C-318;FC-C 318;Propellant C318;R-C 318;1,1,2,2,3,3,4,4-Octafluorocyclobutane;
PSA 0.00000
LogP 2.54120

Synthetic route

: 187737-37-7
propene

: 931-91-9
1,1,2,2,3,3-Hexafluoro-cyclopropane

A: 116-14-3
polytetrafluoroethylene

B: 373-94-4
1,1-difluoro-2-methylcyclopropane

C: 115-25-3
Octafluorocyclobutane

D: 374-30-1
1,1,2,2-tetrafluoro-3-methylcyclobutane

Conditions

Conditions	Yield
at 296℃; for 1h; sealed tube in vacuo;	A 16% B 100% C 9% D 21%
at 296℃; sealed tube in vacuo;	A 16% B 100% C 9% D 21%

...Expand

: 379-14-6
1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane

A: 116-14-3
polytetrafluoroethylene

B: 433-66-9
pentafloropropylene

C: 931-91-9
1,1,2,2,3,3-Hexafluoro-cyclopropane

D: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 300℃; for 160h; Further byproducts given;	A 28% B 100% C 6% D 12%

...Expand

: 379-14-6
1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane

: 110-83-8
cyclohexene

A: 116-14-3
polytetrafluoroethylene

B: 433-66-9
pentafloropropylene

C: 115-25-3
Octafluorocyclobutane

D: 823-70-1
7,7-difluoronorcarane

Conditions

Conditions	Yield
at 200℃; for 320h; Further byproducts given;	A 14% B 99% C n/a D 47%

...Expand

: 379-14-6
1,2,2,3,3-pentafluoro-1-difluoromethylcyclopropane

: 110-83-8
cyclohexene

A: 116-14-3
polytetrafluoroethylene

B: 433-66-9
pentafloropropylene

C: 201230-82-2
carbon monoxide

D: 115-25-3
Octafluorocyclobutane

E: 823-70-1
7,7-difluoronorcarane

F: 7783-61-1
silicon tetrafluoride

Conditions

Conditions	Yield
With Pyrex tube at 200℃; for 320h; Product distribution; Mechanism; further periods of contact time, other temperatures;	A 14% B 99% C 11% D n/a E 47% F 13%

...Expand

: 75-01-4
chloroethylene

: 931-91-9
1,1,2,2,3,3-Hexafluoro-cyclopropane

A: 116-14-3
polytetrafluoroethylene

B: 115-25-3
Octafluorocyclobutane

C: 54944-21-7
1,1-difluoro-2-chlorocyclopropane

Conditions

Conditions	Yield
at 294℃; for 1h; sealed tube in vacuo;	A 91% B 19% C 55%

...Expand

: 17065-31-5
1,2,3,4,7,7-hexafluorobicyclo<2,2,1>hepta-2,5-diene

A: 115-25-3
Octafluorocyclobutane

B: 551-62-2
1,2,3,4-tetrafluorobenzene

Conditions

Conditions	Yield
at 450℃; for 0.5h;	A 56% B 73%

: 74-85-1
ethene

: 931-91-9
1,1,2,2,3,3-Hexafluoro-cyclopropane

A: 116-14-3
polytetrafluoroethylene

B: 558-29-2
2,2-difluorocyclopropane

C: 374-12-9
1,1,2,2-tetrafluorocyclobutane

D: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 300℃; for 4h; sealed tube in vacuo;	A 16% B 68% C 63% D 15%

...Expand

: 697-11-0
hexafluorocyclobut-1-ene

: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
With vanadium pentafluoride at 60℃; for 3h; closed tube;	59%
With trichlorofluoromethane; fluorine at -70℃;
With vanadium pentafluoride at 50 - 60℃; for 3h;	59 % Turnov.
With vanadium pentafluoride at 50 - 60℃; for 3h; Product distribution; different time, temp.;	59 % Turnov.

: 116-14-3
polytetrafluoroethylene

: 460-96-8
bis(trifluoromethyl)phosphine

A: 75-46-7
trifluoromethan

B: 115-25-3
Octafluorocyclobutane

C: 25196-27-4
Tetrafluorethylbis-trifluormethyl-phosphin

Conditions

Conditions	Yield
200°C, 24 h;	A 7% B 53% C 46%
200°C, 24 h;	A 7% B 53% C 46%

...Expand

: 355-49-7
perfluorocetane

A: 116-14-3
polytetrafluoroethylene

B: 116-15-4
perfluoropropylene

C: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 195 - 550℃; under 75.7576 Torr; Temperature; Pressure; Pyrolysis;	A 36.1% B 42.7% C 6.1%

...Expand

: 116-14-3
polytetrafluoroethylene

A: 115-25-3
Octafluorocyclobutane

B: 1,1,2,2,4,4,5,5,6,6,7,7-Dodecafluoro-7-iodo-3-oxo-heptanesulfonyl fluoride

C: 1,1,2,2,4,4,5,5,6,6,7,7,8,8,9,9-Hexadecafluoro-9-iodo-3-oxo-nonanesulfonyl fluoride

D: 1,1,2,2,4,4,5,5,6,6,7,7,8,8,9,9,10,10,11,11-Icosafluoro-11-iodo-3-oxo-undecanesulfonyl fluoride

Conditions

Conditions	Yield
at 180 - 190℃; for 8h; Product distribution; further reaction time;	A 41.3% B 30.4% C 14.5% D 3.3%

...Expand

: 355-49-7
perfluorocetane

A: 116-14-3
polytetrafluoroethylene

B: 116-15-4
perfluoropropylene

C: 357-26-6
octafluoro-1-butene

D: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 195 - 450℃; under 75.7576 Torr; Temperature; Pressure; Pyrolysis;	A 32.5% B 16.5% C 9.2% D 8.2%

...Expand

: 75-45-6
Chlorodifluoromethane

: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 700℃;
at 700℃;

: 75-69-4
trichlorofluoromethane

: 697-11-0
hexafluorocyclobut-1-ene

A: 115-25-3
Octafluorocyclobutane

B: 307-12-0
tetradecafluoro-bicyclobutyl

Conditions

Conditions	Yield
With fluorine at -75℃;

...Expand

: 354-25-6
2-chloro-1,1,2,2-tetrafluoroethane

A: 116-14-3
polytetrafluoroethylene

B: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 750℃;

: 116-14-3
polytetrafluoroethylene

A: 116-15-4
perfluoropropylene

B: 76-16-4
Hexafluoroethane

C: 382-21-8
perfluoroisobutylene

D: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 600℃; Dimerisierung.Pyrolysis;
at 650℃; Dimerisierung.Pyrolysis;

...Expand

: 116-14-3
polytetrafluoroethylene

: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 200 - 600℃; Polymerisationsinhibitor;
at 288 - 466℃; under 30 - 617 Torr; Kinetics; Dimerisierung;
at 300 - 550℃; Kinetics; Dimerisierung;

: 422-64-0
pentafluoropropionic acid

A: 116-14-3
polytetrafluoroethylene

B: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 300℃; Reaktions des Natrium-Salzes;

: 75-45-6
Chlorodifluoromethane

A: 116-14-3
polytetrafluoroethylene

B: 354-25-6
2-chloro-1,1,2,2-tetrafluoroethane

C: 422-55-9
1-chloro-1,1,2,2,3,3-hexafluoropropane

D: 2837-89-0
1,1,1,2-tetrafluoro-2-chloroethane

E: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 580℃; for 0.000833333h; Product distribution; composition of products of pyrolysis at diferent temperatures;	A 18.541 % Chromat. B 3.065 % Chromat. C 3.004 % Chromat. D n/a E 2.829 % Chromat.

...Expand

: 3405-45-6
N-methyldibutylamine

A: 75-73-0
carbon tetrafluoride

B: 76-19-7
freon-218

C: 75-46-7
trifluoromethan

D: 76-16-4
Hexafluoroethane

E: 355-25-9
perfluorobutane

F: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
With hydrogen fluoride Product distribution; electrochemical fluorination;

...Expand

: 116-14-3
polytetrafluoroethylene

A: 116-15-4
perfluoropropylene

B: 382-21-8
perfluoroisobutylene

C: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
With silica gel at 348.9℃; for 71h; Product distribution; Rate constant; thermolysis(other temp.);

...Expand

: 116-14-3
polytetrafluoroethylene

A: 116-15-4
perfluoropropylene

B: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 660℃; under 760 Torr; Mechanism; Ar-diluted mixtures, flow conditions; other temperatures;
With water at 601 - 747℃; for 0.224333 - 0.492833h;

: 116-14-3
polytetrafluoroethylene

A: 75-45-6
Chlorodifluoromethane

B: 354-25-6
2-chloro-1,1,2,2-tetrafluoroethane

C: 2837-89-0
1,1,1,2-tetrafluoro-2-chloroethane

D: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
With hydrogenchloride at 660℃; under 760 Torr; Mechanism; Ar-diluted mixtures, flow conditions; other temperatures;

...Expand

: 79-38-9
Chlorotrifluoroethylene

A: 76-13-1
1,1,2-Trichloro-1,2,2-trifluoroethane

B: 598-88-9
1,2-dichloro-1,2-difluoroethene

C: 79-47-0
3-chloro-1,1,2,3,3-pentafluoro-propene

D: 357-26-6
octafluoro-1-butene

E: 115-25-3
Octafluorocyclobutane

F: 356-18-3
1,2-dichloroperfluorocyclobutane

Conditions

Conditions	Yield
at 450 - 710℃; for 0.000333333h; Product distribution; Mechanism; pyrolysis; variation of time and temp.; effect of contact time and temp.;	A 5.2 % Chromat. B 2.5 % Chromat. C 27.0 % Chromat. D 1.7 % Chromat. E 1.6 % Chromat. F 30.1 % Chromat.

...Expand

: 116-14-3
polytetrafluoroethylene

: 542-92-7
cyclopenta-1,3-diene

A: 462-06-6
fluorobenzene

B: 98-08-8
α,α,α-trifluorotoluene

C: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 660℃; under 760 Torr; Mechanism; Ar-diluted mixtures, flow conditions; other temperatures;

...Expand

: Bis-nonafluorobutyl-phosphinic acid methyl ester

: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 180℃;

: 374-12-9
1,1,2,2-tetrafluorocyclobutane

: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
With hydrogen fluoride electrochemical reaction;

: 422-55-9
1-chloro-1,1,2,2,3,3-hexafluoropropane

platinized nickel: platinized nickel

A: 116-14-3
polytetrafluoroethylene

B: 75-71-8
Dichlorodifluoromethane

C: 354-25-6
2-chloro-1,1,2,2-tetrafluoroethane

D: 115-25-3
Octafluorocyclobutane

Conditions

Conditions	Yield
at 780℃;

...Expand

: 75-69-4
trichlorofluoromethane

: 697-11-0
hexafluorocyclobut-1-ene

fluorine: fluorine

A: 115-25-3
Octafluorocyclobutane

B: 307-12-0
tetradecafluoro-bicyclobutyl

Conditions

Conditions	Yield
at -75℃;

...Expand

: 115-25-3
Octafluorocyclobutane

: 66566-92-5
caesium bis(trifluoromethyl)amide

A: perfluoro(dimethyl-cyclo-1-butenylamine)

B: 58624-20-7
perfluoro(N,N,N',N'-tetramethyl-cyclo-1-butene-1,2-diamine)

Conditions

Conditions	Yield
In diethylene glycol dimethyl ether	A 10% B 82%

...Expand

: 115-25-3
Octafluorocyclobutane

: silver 3,6,9-trioxa-F-undecanoate

A: 13071-65-3
perfluoro(3,6-dioxaoctanoyl) fluoride

B: 13071-66-4
Difluoro-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethoxy)-ethoxy]-acetyl fluoride

C: 1-[2-(Difluoro-iodo-methoxy)-1,1,2,2-tetrafluoro-ethoxy]-1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethane

D: 80153-87-3
Difluoro-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethoxy)-ethoxy]-acetic acid difluoro-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethoxy)-ethoxy]-methyl ester

Conditions

Conditions	Yield
With iodine at 130℃; for 5h;	A n/a B n/a C 67% D 3.3%

...Expand

: 115-25-3
Octafluorocyclobutane

: silver 3,6,9-trioxa-F-undecanoate

A: 13071-66-4
Difluoro-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethoxy)-ethoxy]-acetyl fluoride

B: 1-[2-(Difluoro-iodo-methoxy)-1,1,2,2-tetrafluoro-ethoxy]-1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethane

C: 80153-87-3
Difluoro-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethoxy)-ethoxy]-acetic acid difluoro-[1,1,2,2-tetrafluoro-2-(1,1,2,2-tetrafluoro-2-pentafluoroethyloxy-ethoxy)-ethoxy]-methyl ester

Conditions

Conditions	Yield
With iodine at 130℃; for 5h;	A n/a B 67% C 3.3%

...Expand

: 74-87-3
methylene chloride

: 115-25-3
Octafluorocyclobutane

A: 116-14-3
polytetrafluoroethylene

B: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
at 250 - 800℃; under 150.015 Torr;	A 56.2% B n/a

...Expand

: 115-25-3
Octafluorocyclobutane

A: 116-14-3
polytetrafluoroethylene

B: 359-11-5
1,1,2-trifluoroethylene

Conditions

Conditions	Yield
With methane at 250 - 800℃; under 150.015 Torr; for 0.000175h;	A 51.3% B 8.2%

: 34557-54-5
methane

: 115-25-3
Octafluorocyclobutane

A: 116-14-3
polytetrafluoroethylene

B: 116-15-4
perfluoropropylene

C: 75-38-7
Vinylidene fluoride

D: 754-12-1
2,3,3,3-tetrafluoro-propene

E: 359-11-5
1,1,2-trifluoroethylene

Conditions

Conditions	Yield
at 250 - 800℃; under 150.015 Torr; for 0.000175h; Temperature;	A 45.8% B 7.4% C 10.4% D 8.4% E 9.5%

...Expand

: 115-25-3
Octafluorocyclobutane

: 671-63-6
tris(trifluoromethyl)hydroxylamine

A: 17636-85-0
perfluoro(N,N,N'N'-tetramethylcyclobutane-1,2-diamine)

B: 17636-84-9
perfluoro(dimethyl-2-methoxybutylamine)

C: 17636-86-1
perfluoro(2-dimethylamino-2'-methoxybicylobutyl)

Conditions

Conditions	Yield
other Radiation; ratio of (CF3)2NOCF3 and perfluorocyclobutane = 2:1, irradiation in quartz vessel;	A 16% B 45% C 5%
other Radiation; ratio of (CF3)2NOCF3 and perfluorocyclobutane = 2:1, irradiation in quartz vessel;	A 16% B 45% C 5%
other Radiation; irradiation of equimolar mixt. of educts in quartz vessel, 30 d; distillated 76-153.5°C;	A 8% B 26% C 11%
other Radiation; irradiation of equimolar mixt. of educts in quartz vessel, 30 d; distillated 76-153.5°C;	A 8% B 26% C 11%

...Expand

: 115-25-3
Octafluorocyclobutane

: 836-77-1
perfluoro-N-fluoropiperidine

: 20877-32-1
perfluoro-(1-cyclobutylpiperidine)

Conditions

Conditions	Yield
In neat (no solvent, gas phase) Irradiation (UV/VIS); 14 h;;	44%

: 115-25-3
Octafluorocyclobutane

A: 116-14-3
polytetrafluoroethylene

B: 116-15-4
perfluoropropylene

Conditions

Conditions	Yield
at 676.9℃; Product distribution; Rate constant; Kinetics;
Pyrolysis;

: 115-25-3
Octafluorocyclobutane

A: 116-14-3
polytetrafluoroethylene

B: 116-15-4
perfluoropropylene

C: 76-16-4
Hexafluoroethane

D: 382-21-8
perfluoroisobutylene

Conditions

Conditions	Yield
at 550 - 650℃; Kinetics; Pyrolysis;
at 550 - 650℃; Mechanism; Pyrolysis;

...Expand

: 115-25-3
Octafluorocyclobutane

: 357-26-6
octafluoro-1-butene

Conditions

Conditions	Yield
With pyrographite at 700℃;
With pyrographite at 700℃;

: 115-25-3
Octafluorocyclobutane

: 382-21-8
perfluoroisobutylene

Conditions

Conditions	Yield
at 700 - 725℃;
Pyrolysis;

Octafluorocyclobutane Consensus Reports

EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

Octafluorocyclobutane Standards and Recommendations

DOT Classification: 2.2; Label: Nonflammable Gas

Octafluorocyclobutane Specification

The Octafluorocyclobutane with CAS registry number of 115-25-3 is also known as Octafluorocyclobutane. The IUPAC name is 1,1,2,2,3,3,4,4-Octafluorocyclobutane. It belongs to product categories of Refrigerants; Organics. Its EINECS registry number is 204-075-2. In addition, the formula is C₄F₈ and the molecular weight is 200.03. It is a colorless gas that may cause inflammation to the skin or other mucous membranes. This chemical is used as a refrigerant in specialised applications and also can be usded as a deposition gas or etchant in the production semiconductor materials and devices. During using it, do not breathe gas/fumes/vapour/spray. In case of insufficient ventilation wear suitable respiratory equipment.

Physical properties about Octafluorocyclobutane are: (1)ACD/LogP: 0.40; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.4; (4)ACD/LogD (pH 7.4): 0.4; (5)ACD/BCF (pH 5.5): 1.19; (6)ACD/BCF (pH 7.4): 1.19; (7)ACD/KOC (pH 5.5): 39.49; (8)ACD/KOC (pH 7.4): 39.49; (9)Index of Refraction: 1.257; (10)Molar Refractivity: 19.5 cm³; (11)Molar Volume: 120 cm³; (12)Surface Tension: 11 dyne/cm; (13)Density: 1.66 g/cm³; (14)Enthalpy of Vaporization: 23.41 kJ/mol; (15)Vapour Pressure: 2220 mmHg at 25 °C.

Preparation of Octafluorocyclobutane: it is prepared by reaction of hexafluorocyclobutene. The reaction needs reagent VF₅ at the temperature of 50-60 °C for 3 hours. The yield is about 59% Turnov.

Octafluorocyclobutane is prepared by reaction of hexafluorocyclobutene.

Uses of Octafluorocyclobutane: it is used to produce difluoro-{1,1,2,2-tetrafluoro-2-[1,1,2,2-tetrafluoro-2-(1,1,2,2,2-pentafluoro-etho and 1-[2-(difluoro-iodo-methoxy)-1,1,2,2-tetrafluoro-ethoxy]-1,1,2,2-tetrafluoro-2-(1,1,2,2,2-pentafluoro-ethoxy)-ethane by reaction with silver 3,6,9-trioxa-F-undecanoate. The reaction occurs with reagent iodine at the temperature of 130 °C for 5 hours. The yield is about 67%.

Octafluorocyclobutane is used to produce difluoro-{1,1,2,2-tetrafluoro-2-[1,1,2,2-tetrafluoro-2-(1,1,2,2,2-pentafluoro-etho and 1-[2-(difluoro-iodo-methoxy)-1,1,2,2-tetrafluoro-ethoxy]-1,1,2,2-tetrafluoro-2-(1,1,2,2,2-pentafluoro-ethoxy)-ethane by reaction with silver 3,6,9-trioxa-F-undecanoate.

You can still convert the following datas into molecular structure:
1. Canonical SMILES: C1(C(C(C1(F)F)(F)F)(F)F)(F)F
2. InChI: InChI=1S/C4F8/c5-1(6)2(7,8)4(11,12)3(1,9)10
3. InChIKey: BCCOBQSFUDVTJQ-UHFFFAOYSA-N

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
mouse	LCLo	inhalation	78pph/2H (780000ppm)		Trudy Leningradskogo Sanitarno-Gigienicheskogo Meditsinskogo Instituta. Vol. 111, Pg. 39, 1975.

Product Name

Octafluorocyclobutane

Synthetic route

Octafluorocyclobutane Consensus Reports

Octafluorocyclobutane Standards and Recommendations

Octafluorocyclobutane Specification

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