1,1-Difluoroethylene supplier

Name
1,1-Difluoroethene
EINECS 200-867-7
CAS No. 75-38-7
Article Data114
CAS DataBase
Density 0.95 g/cm³
Solubility slightly soluble in water and soluble in alcohol and ether
Melting Point -144 °C(lit.)
Formula C₂H₂F₂
Boiling Point -83 °C
Molecular Weight 64.0347
Flash Point <-60oC
Transport Information UN 1959
Appearance colorless gas
Safety 16-7/9
Risk Codes 12
Molecular Structure
Hazard Symbols F+,F
Synonyms Ethylene,1,1-difluoro- (8CI);1,1-Difluoroethene;1,1-Difluoroethylene;FC 1132a;Fluorovinylidene;Genetron 1132a;HFC 1132a;R 1132a;Vinylidene difluoride;Vinylidene fluoride;
PSA 0.00000
LogP 1.39660

Synthetic route

: 56354-44-0
β,β,β-trifluoroethyl phenyl sulfone

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With chloro-trimethyl-silane; magnesium In N,N-dimethyl-formamide at 20℃; for 0.25h;	100%

: 49852-57-5
1,1,2-trifluoro-2-(trifluoromethyl)cyclobutane

A: 75-38-7
Vinylidene fluoride

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

Conditions

Conditions	Yield
at 800℃; for 7.83h; Inert atmosphere;	A 97% B 81%

: 359-10-4
1-Chloro-2,2-difluoroethene

A: 116-14-3
polytetrafluoroethylene

B: 75-38-7
Vinylidene fluoride

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

Conditions

Conditions	Yield
With hydrogen sulfide Product distribution; Irradiation; added CH3OH or alone;	A 6% B 82% C 12%

...Expand

: 26272-85-5
3-iodooxetane

: 5122-94-1
4-biphenylboronic acid

A: 75-38-7
Vinylidene fluoride

B: 3-([1,1'-biphenyl]-4-yl)oxetane

C: C16H18O2

Conditions

Conditions	Yield
With potassium phosphate; [(2,2''-bipyridine)Ni(CH2CF3)2] In 1,2-dimethoxyethane at 80℃; Suzuki Coupling;	A n/a B 57% C n/a

...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

: 186581-53-3, 908094-01-9
diazomethane

: 420-32-6
thiocarbonyl fluoride

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
In diethyl ether -30°C;	56%

: 338-65-8
1-chloro-2,2-difluoroethane

A: 75-38-7
Vinylidene fluoride

B: 1691-13-0
1,2-difluoroethene

C: 460-16-2
1-chloro-2-fluoroethylene

Conditions

Conditions	Yield
at 650℃; Activation energy; Product distribution; Further Variations:; Temperatures;	A 32% B 53% C 13%
at 650℃;	A 32% B 53% C 13%

...Expand

: 74-83-9
methyl bromide

: 75-45-6
Chlorodifluoromethane

A: 116-14-3
polytetrafluoroethylene

B: 74-87-3
methylene chloride

C: 34557-54-5
methane

D: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
at 499.84 - 849.84℃; under 757.576 Torr; Further byproducts.;	A n/a B n/a C n/a D 53%

...Expand

: 13821-49-3
perfluoro(N,N-dimethyl trifluorovinylamine)

A: 75-46-7
trifluoromethan

B: 75-38-7
Vinylidene fluoride

C: 76-16-4
Hexafluoroethane

D: 460-49-1
trifluoromethyl isocyanate

E: 559-93-3
perfluoro(2-aza-1-hexene)

Conditions

Conditions	Yield
With toluene pyrolysis 610°C, contact time 0.66 sec, further product;	A n/a B n/a C n/a D n/a E 46%
With toluene pyrolysis 610°C, contact time 0.66 sec, further product;	A n/a B n/a C n/a D n/a E 46%

...Expand

: 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

: 79695-52-6
2,2,2-trifluoroethyl phenyl sulfoxide

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With chloro-trimethyl-silane; magnesium In N,N-dimethyl-formamide at 20℃; for 8h;	20%

: 75-37-6
1,1-difluoroethane

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With Dichlorodifluoromethane; chlorine at 650℃;
With chlorine at 610℃;

: 34557-54-5
methane

: 75-71-8
Dichlorodifluoromethane

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With platinum rhodium at 800℃;

: 420-46-2
2,2,2-trifluoroethanol

A: 75-38-7
Vinylidene fluoride

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

Conditions

Conditions	Yield
at 750 - 910℃;

: 75-68-3
1-Chloro-1,1-difluoroethane

A: 76-11-9
1,1-difluorotetrachloroethane

B: 1649-08-7
1,2-dichloro-1,1-difluoroethane

C: 75-38-7
Vinylidene fluoride

D: 354-21-2
1,1,2-trichloro-2,2-difluoroethane

Conditions

Conditions	Yield
at 420℃; bei der Chlorierung: Produkt 5: 2.2-Difluor-1.1-dichlor-aethylen;

...Expand

: 75-68-3
1-Chloro-1,1-difluoroethane

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
In gas at 24.9℃; Quantum yield; Irradiation; photodecomposition; enthalpy of reaction;
at 600℃; beim Leiten durch ein Platinrohr;
With tetrachloromethane at 550℃; ueber Nickelspiralen;

: 359-07-9
2-bromo-1,1-difluoroethane

: 124-41-4
sodium methylate

A: 461-57-4
2,2-difluoroethyl methyl ether

B: 75-38-7
Vinylidene fluoride

...Expand

: 359-07-9
2-bromo-1,1-difluoroethane

A: 372-55-4
2,2-difluoroethyl ethyl ether

B: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With potassium ethoxide
With sodium ethanolate

: 353-83-3
1,1,1-trifluoro-2-iodoethane

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With diethyl ether; magnesium

: 1649-08-7
1,2-dichloro-1,1-difluoroethane

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With hydrogen at 500℃; ueber Nickelspiralen;
With acetamide; zinc; butan-1-ol at 50℃;
With acetamide; sodium iodide; zinc at 145℃; Reagens 4: 2-Aethyl-hexanol-(1);
With hydrogen at 550℃; under 760.051 Torr; Product distribution / selectivity; Autoclave;

: 75-82-1
1,2-dibromo-1,1-difluoroethane

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With diethyl ether; phenylmagnesium bromide
With formic acid; tris(bipyridine)ruthenium(II) dichloride hexahydrate; triethylamine In dimethyl sulfoxide for 0.5h; Irradiation; Inert atmosphere;	10 %Spectr.

: 420-93-9
1-bromo-1,1-difluoro-2-iodoethane

A: 353-83-3
1,1,1-trifluoro-2-iodoethane

B: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With mercury(I) fluoride at 140℃;

: 422-15-1
1,1,2,2-tetrafluoro-3-methylenecyclobutane

A: 75-38-7
Vinylidene fluoride

B: 430-64-8
1,1-difluoroallene

Conditions

Conditions	Yield
at 800℃; Hochvakuum;

: 463-51-4
Ketene

: 116-14-3
polytetrafluoroethylene

A: 75-38-7
Vinylidene fluoride

B: 3899-71-6
1,1-dihydrotetrafluorocyclopropane

Conditions

Conditions	Yield
With oxygen under 67 Torr; Rate constant; Ambient temperature; Irradiation; or 139 torr, or 361 torr; 0-7.2 kV/cm electric field effect;
With oxygen under 65.9 - 1837.9 Torr; Rate constant; Mechanism; Product distribution; Irradiation;
With oxygen Irradiation;

...Expand

: 392-56-3
Hexafluorobenzene

: 34557-54-5
methane

A: 75-38-7
Vinylidene fluoride

B: 363-72-4
Pentafluorobenzene

C: 771-56-2
2,3,4,5,6-pentafluorotoluene

D: 74-86-2
acetylene

Conditions

Conditions	Yield
Mechanism; Thermodynamic data; Irradiation; ΔH (excit.),;	A n/a B n/a C 4 % Chromat. D n/a

...Expand

: 74-87-3
methylene chloride

: 75-45-6
Chlorodifluoromethane

A: 116-14-3
polytetrafluoroethylene

B: 34557-54-5
methane

C: 75-46-7
trifluoromethan

D: 75-38-7
Vinylidene fluoride

E: 4556-24-5
1,1,3,3-Tetrafluoropropene

Conditions

Conditions	Yield
at 950℃; for 5.55556E-05h; Product distribution; other temperatures, other contact times;	A 0.9 % Chromat. B 4.5 % Chromat. C 7.8 % Chromat. D 21.9 % Chromat. E 1.3 % Chromat.

...Expand

: 74-87-3
methylene chloride

: 75-45-6
Chlorodifluoromethane

A: 116-14-3
polytetrafluoroethylene

B: 34557-54-5
methane

C: 75-38-7
Vinylidene fluoride

D: 4556-24-5
1,1,3,3-Tetrafluoropropene

Conditions

Conditions	Yield
at 650℃; for 5.55556E-05h; Product distribution; other temperatures, other contact times;	A 11.2 % Chromat. B 3.2 % Chromat. C 5.0 % Chromat. D 1.6 % Chromat.

...Expand

: 74-87-3
methylene chloride

: 75-45-6
Chlorodifluoromethane

A: 116-14-3
polytetrafluoroethylene

B: 430-66-0
1,1,2-Trifluoroethan

C: 75-38-7
Vinylidene fluoride

D: 4556-24-5
1,1,3,3-Tetrafluoropropene

E: 2730-64-5
1-Chloro-1,1,3,3-tetrafluoropropane

F: 122607-48-1
1,3,3-Trifluoropropyne

Conditions

Conditions	Yield
Product distribution; Heating; various temperatures, various contact times;

...Expand

: 353-50-4
Carbonyl fluoride

: 373-74-0
methyltrifluorosilane

: 75-38-7
Vinylidene fluoride

Conditions

Conditions	Yield
With nitrogen trifluoride at 25℃; pulsed ion cyclotron resonance experiment;

: 75-38-7
Vinylidene fluoride

: 78315-30-7
2,2-difluoro vinyllithium

Conditions

Conditions	Yield
With sec.-butyllithium In tetrahydrofuran at -110℃;	100%
With n-butyllithium In diethyl ether; pentane

: 75-38-7
Vinylidene fluoride

: 355-43-1
n-perfluorohexyl iodide

: 53826-16-7
1,1,1,2,2,3,3,4,4,5,5,6,6,8,8-pentadecafluoro-8-iodooctane

Conditions

Conditions	Yield
Heating;	100%
at 180℃;

: 75-38-7
Vinylidene fluoride

: 76-37-9
2,2,3,3-tetrafluoropropanol

: 1201897-09-7
C5H6F6O

Conditions

Conditions	Yield
With potassium hydroxide In water at 75 - 80℃; under 6000.6 Torr; Inert atmosphere; Autoclave;	99.8%

: 75-38-7
Vinylidene fluoride

: 463-99-0
1-Chloro-1,1-difluoro-2-iodoethane

Conditions

Conditions	Yield
With Iodine monochloride at 45℃; for 15h; Temperature; Inert atmosphere; Large scale;	99%
With Iodine monochloride at 40℃; Darkness; Autoclave;	75%
With Iodine monochloride unter Lichtausschluss;

: 75-38-7
Vinylidene fluoride

: 6141-72-6
perfluoro(2,4-dimethyl-3-oxa-2,4-diazapentane)

O-[2-(Bis-trifluoromethyl-amino)-1,1-difluoro-ethyl]-N,N-bis-trifluoromethyl-hydroxylamine: O-[2-(Bis-trifluoromethyl-amino)-1,1-difluoro-ethyl]-N,N-bis-trifluoromethyl-hydroxylamine

Conditions

Conditions	Yield
for 48h; Ambient temperature; in vacuo;	99%

: 186581-53-3, 908094-01-9
diazomethane

: 75-38-7
Vinylidene fluoride

: 1461-22-9
tributyltin chloride

: 853180-40-2
4-fluoro-5-(tributylstannyl)-1H-pyrazole

Conditions

Conditions	Yield
With n-butyllithium In tetrahydrofuran sec-BuLi added in THF at -78°C, stirred for 10 min, F2CCH2 added at -105°C, warmed to -70°C, Sn compd. added dropwise, warmed to -30°C, diazomethane added, warmed to room temp.; water and hexane added, extd. (hexane/ether=3:1), elem. anal.;	98%

...Expand

: 246047-72-3
tricyclohexylphosphine[1,3-bis(2,4,6-trimethylphenyl)-4,5-dihydroimidazol-2-ylidine][benzylidene]ruthenium(II) dichloride

: 75-38-7
Vinylidene fluoride

: 1,3-bis-(2,4,6-trimethylphenyl)-2-imidazolidinylidene-dichloro(phenylmethylene)-(tricyclohexyl-phosphine)difluoromethylene ruthenium

Conditions

Conditions	Yield
In benzene under 1140.08 Torr; for 12h; Heating;	98%
In benzene soln. of Ru(Cl)2(P(C6H11)3)(CH(C6H5))(C3H5N2(C6H2(CH3)3)2) in dry degassed benzene in thick-walled glass ampule put under approx. 1.5 atm of 1,1-difluoroethylene; mixt. heated at 60°C for 12 h; color changed from reddish to brown; soln. concd. and purifed by column chromy. in air (silica gel, 5:1 pentane:THF); orange fraction stripped of solvent; dried under vac.;	86%
In benzene-d6 at 60℃; under 760.051 Torr; for 12h;
In benzene-d6 at 60℃; under 760.051 Torr; for 12h;

: 75-38-7
Vinylidene fluoride

: 2714-60-5
tetrakis(trifluoromethyl)diphosphine

: 34250-89-0
1,2-Bis-(bis-trifluoromethyl-phosphanyl)-1,1-difluoro-ethane

Conditions

Conditions	Yield
50°C (120 h);	97%
Irradiation (UV/VIS); 20°C (90 h);	72%
Irradiation;

: 75-38-7
Vinylidene fluoride

: 2154-71-4
bis-trifluoromethyl-aminooxyl

: 24616-12-4
1,2-Bis-(di-trifluormethyl-aminooxy)-1,1-difluor-ethan

Conditions

Conditions	Yield
for 30h; Ambient temperature;	97%

: 75-38-7
Vinylidene fluoride

: 71359-63-2
chlorodifluoro acetate

: 72844-39-4
Difluoro-acetic acid 2-chloro-1,1-difluoro-ethyl ester

Conditions

Conditions	Yield
at -195 - 22℃;	95%

: 75-38-7
Vinylidene fluoride

: 758-43-0
N-bromobis(trifluoromethyl)amine

: 5003-73-6
N.N-Bis-trifluormethyl-(2-brom-2.2-difluor-ethyl)-amin

Conditions

Conditions	Yield
at 25°C for 0.5 h;	95%
at 25°C for 0.5 h;	95%

: 75-38-7
Vinylidene fluoride

poly(vinylidene fluoride): poly(vinylidene fluoride)

Conditions

Conditions	Yield
With sodium 3-(allyloxy)-2-hydroxypropane-1-sulfonate; di-n-propyl peroxydicarbonate In water; paraffin wax at 82℃; under 33603.4 Torr; for 2.7h; Product distribution / selectivity;	94.4%
With sodium 3-(allyloxy)-2-hydroxypropane-1-sulfonate; dipotassium peroxodisulfate; sodium acetate In water at 80 - 82℃; under 33603.4 Torr; for 2.3 - 4.7h; Product distribution / selectivity;	90.6%
With dipotassium peroxodisulfate; sodium acetate In water; paraffin wax at 80 - 82℃; under 33603.4 Torr; for 2.2h; Product distribution / selectivity;	81.2%

: 75-38-7
Vinylidene fluoride

: 811-97-2
1,1,1,2-tetrafluoroethane

Conditions

Conditions	Yield
With xenon difluoride; silicon tetrafluoride at 20℃; for 6h; Fluorination;	94%
With sulfur tetrafluoride; lead dioxide at 100℃; for 2h;
With cobalt (III) fluoride at 125℃;

: 75-38-7
Vinylidene fluoride

: 65597-25-3
Trifluoracylhypochlorit

: 72844-28-1
Trifluoro-acetic acid 2-chloro-1,1-difluoro-ethyl ester

Conditions

Conditions	Yield
1.) -195 deg C, 2.) -150 deg C -> 22 deg C within 1d;	94%

: 75-38-7
Vinylidene fluoride

: 1493-13-6
trifluorormethanesulfonic acid

: 73323-78-1
difluoroethyl trifluoromethane-sulfonate

Conditions

Conditions	Yield
under 2964 Torr; for 3h;	94%

: 1295-35-8
bis(1,5-cyclooctadiene)nickel (0)

: 75-38-7
Vinylidene fluoride

: 103-71-9
phenyl isocyanate

: 2622-14-2
tricyclohexylphosphine

: tricyclohexylphosphane-5-aza-2,2-difluoronickelacyclopentan-4-one

Conditions

Conditions	Yield
In diethyl ether react. temp. -78 to -10°C, under exclusion of air; elem. anal.;	93.4%

...Expand

: 75-38-7
Vinylidene fluoride

: 460-96-8
bis(trifluoromethyl)phosphine

: 27393-63-1
2,2-Difluoroaethyl-bis(trifluoromethyl)phosphin

Conditions

Conditions	Yield
Irradiation (UV/VIS); time of irradiation:60 h at 30°C;	93%
for 60h; Irradiation;

: 75-38-7
Vinylidene fluoride

: 68674-44-2
Chlordifluoracylhypochlorit

: 72844-38-3
Chloro-difluoro-acetic acid 2-chloro-1,1-difluoro-ethyl ester

Conditions

Conditions	Yield
at -195 - 22℃;	93%

: 75-38-7
Vinylidene fluoride

: 1184-76-5
difluorodiiodomethane

: 58706-50-6
1,3-diiodo-1,1,3,3-tetrafluoropropane

Conditions

Conditions	Yield
With lead(IV) acetate In acetic acid at 70℃; for 14h;	92%

: 23777-40-4
bis(triphenylphosphine)ethylenenickel(0)

: 75-38-7
Vinylidene fluoride

: 25397-20-0
CH2CF2Ni(P(C6H5)3)2

Conditions

Conditions	Yield
In diethyl ether byproducts: ethylene; react. in ether at room temp.;;	92%
In diethyl ether byproducts: ethylene; react. in ether at room temp.;;	92%

: 75-38-7
Vinylidene fluoride

: 1,1-difluoroethylene oxide

Conditions

Conditions	Yield
With 18-crown-6 ether; dihydrogen peroxide In dichloromethane at 120℃; under 30003 Torr; for 8h; Reagent/catalyst; Solvent; Pressure; Temperature; Autoclave; Sealed tube;	92%

: 75-38-7
Vinylidene fluoride

: 2713-09-9
fluoroethyne

Conditions

Conditions	Yield
With sec.-butyllithium In neat (no solvent) Product distribution; -110 deg C then -80 deg C;	90%
With sec.-butyllithium In tetrahydrofuran; diethyl ether at -110 - -100℃; for 0.166667h;
for 4h; Irradiation;
under 0.05 Torr; Irradiation; var. pressure;

: 75-38-7
Vinylidene fluoride

: 1631-73-8
trimethylstannane

: 25733-30-6
1,1-Difluor-2--ethan

Conditions

Conditions	Yield
Irradiation (UV/VIS); UV-irradiation at 25°C for 4 h;;	90%
Irradiation (UV/VIS); UV-irradiation at 25°C for 4 h;;	90%
In not given Irradiation (UV/VIS);

: 288-32-4
1H-imidazole

: 75-38-7
Vinylidene fluoride

: 943522-65-4
1-(1,1-difluoroethyl)imidazole

Conditions

Conditions	Yield
In tetrahydrofuran; trifluoromethyl trifluorovinyl ether at 20 - 100℃; for 8h;	90%

: 110-18-9
N,N,N,N,-tetramethylethylenediamine

: 75-38-7
Vinylidene fluoride

: 7646-85-7
zinc(II) chloride

: 2,2-difluorovinylzinc chloride N,N,N',N'-tetramethylethylenediamine

Conditions

Conditions	Yield
With s-BuLi In tetrahydrofuran; diethyl ether; hexane to soln. of TMEDA in THF-Et2O at -110°C slowly added CF2CH2 (gas), stirring (5 min), to the soln. at -110°C slowly added s-BuLi inhexane, stirring (20 min), then ZnCl2 soln. in THF added to the mixt., stirring (-100°C, 30 min); (19)F NMR;	90%
Stage #1: N,N,N,N,-tetramethylethylenediamine; Vinylidene fluoride With sec.-butyllithium In tetrahydrofuran; diethyl ether at -110℃; for 0.333333h; Inert atmosphere; Stage #2: zinc(II) chloride In tetrahydrofuran-d8; diethyl ether at -100℃; for 0.5h;	95 %Spectr.

...Expand

: 460087-59-6
1-[4-(2-Butoxy-3,5-diisopropyl-phenyl)-quinolin-6-yl]-ethanone

: 75-38-7
Vinylidene fluoride

: 598-30-1
sec.-butyllithium

: 460087-60-9
3-[4-(2-butoxy-3,5-diisopropyl-phenyl)-quinolin-6-yl]-but-2(E)-enoic acid methyl ester

Conditions

Conditions	Yield
With sulfuric acid In tetrahydrofuran; methanol; N,N',N''-triethylenephosphoramide; diethyl ether; cyclohexane	89%

...Expand

: 1295-35-8
bis(1,5-cyclooctadiene)nickel (0)

: 75-38-7
Vinylidene fluoride

: 103-71-9
phenyl isocyanate

: triphenylphosphane-5-aza-2,2-difluoronickelacyclopentan-4-one

Conditions

Conditions	Yield
With P(C6H5) In diethyl ether react. temp. -78 to 20°C, under exclusion of air; elem. anal.;	88%

...Expand

1,1-Difluoroethylene Consensus Reports

IARC Cancer Review: Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 7 ,1987,p. 56.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) ; Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man . 39 ,1986,p. 227.(World Health Organization, Internation Agency for Research on Cancer,Lyon, France.: ) (Single copies can be ordered from WHO Publications Centre U.S.A., 49 Sheridan Avenue, Albany, NY 12210) . Reported in EPA TSCA Inventory.

1,1-Difluoroethylene Standards and Recommendations

ACGIH TLV: TWA 500 ppm; Not Classifiable as a Human Carcinogen
DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans
DOT Classification: 2.1; Label: Flammable Gas
NIOSH REL: (Vinyl Halides) TWA reduce to lowest detectable level

1,1-Difluoroethylene Specification

The Vinylidene fluoride, with the CAS registry number 75-38-7 and EINECS registry number 200-867-7, has the systematic name of 1,1-difluoroethene. It is a colorless gas, and bleongs to the following product categories: CFC; Refrigerants; Organics. It is slightly soluble in water and soluble in alcohol and ether. And the molecular formula of this chemical is C₂H₂F₂.

The physical properties of Vinylidene fluoride are as following: (1)ACD/LogP: 1.25; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.25; (4)ACD/LogD (pH 7.4): 1.25; (5)ACD/BCF (pH 5.5): 5.24; (6)ACD/BCF (pH 7.4): 5.24; (7)ACD/KOC (pH 5.5): 113.84; (8)ACD/KOC (pH 7.4): 113.84; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: Å²; (13)Index of Refraction: 1.264; (14)Molar Refractivity: 11.21 cm³; (15)Molar Volume: 67.3 cm³; (16)Polarizability: 4.44×10^-24cm³; (17)Surface Tension: 8.7 dyne/cm; (18)Density: 0.95 g/cm³.

Preparation and uses of Vinylidene fluoride: Dry acetylene reacts with hydrofluoric acid in the presence of fluosulfonic acid, and gives 1,1-difluoroethane. Then mix with a certain amount of chlorine in the temperaure of 650-680 °C. Through a series of pyrogenation, you can get the vinylidene fluoride. In addition, it is usually used to produce polyvinylidene fluoride(PVDF), a kind of irradiation resistance material. It is also used as raw material of fluor resin and fluorubber.

You should be cautious while dealing with this chemical. It is a kind of extremely flammable chemical. Therefore, you had better take the following instructions: Keep away from sources of ignition - No smoking; Keep container tightly closed and in a well-ventilated place.

You can still convert the following datas into molecular structure:
(1)SMILES: C=C(F)F
(2)InChI: InChI=1/C2H2F2/c1-2(3)4/h1H2
(3)InChIKey: BQCIDUSAKPWEOX-UHFFFAOYAV

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
guinea pig	LCLo	inhalation	800ppb/4H (0.8ppm)		National Technical Information Service. Vol. OTS0523847,
rat	LCLo	inhalation	128000ppm/4H (128000ppm)	LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES	Journal of Occupational Medicine. Vol. 4, Pg. 262, 1962.

Product Name

1,1-Difluoroethene

Synthetic route

1,1-Difluoroethylene Consensus Reports

1,1-Difluoroethylene Standards and Recommendations

1,1-Difluoroethylene Specification

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