CAS No.75-38-7,1,1-Difluoroethene Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	75-38-7
Name:	1,1-Difluoroethene
Article Data:	114

Formula:	C₂H₂F₂
Molecular Weight:	64.0347
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;
EINECS:	200-867-7
Density:	0.95 g/cm³
Melting Point:	-144 °C(lit.)
Boiling Point:	-83 °C
Flash Point:	<-60oC
Solubility:	slightly soluble in water and soluble in alcohol and ether
Appearance:	colorless gas
Hazard Symbols:	F+,F
Risk Codes:	12
Safety:	16-7/9
Transport Information:	UN 1959
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

Raw Materials

104-76-7

431-31-2

359-11-5

422-15-1

74-83-9

359-10-4

75-89-8

463-51-4

Downstream Products

354-34-7

371-83-5

257610-49-4

35277-02-2

338-65-8

79-14-1

115967-53-8

127-18-4

Total:38 Page 1 of 1 1

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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.

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

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.