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CAS No.: | 75-37-6 |
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Name: | 1,1-Difluoroethane |
Article Data: | 68 |
Molecular Structure: | |
Formula: | C2H4 F2 |
Molecular Weight: | 66.0506 |
Synonyms: | Propellant 152A;R 152a;Solkane 152a;TG 152a;1,1-Difluoroethane;Algofrene 67;Dymel 152;Dymel 152A;Ethylidene fluoride;F 152A;FC 152a;FKW152a;Formacel Z 2;Fron 152a;Genetron 152A;HCFC 152a;HFA 152a;HFC 152a; |
EINECS: | 200-866-1 |
Density: | 0.907 g/cm3 |
Melting Point: | -117 °C |
Boiling Point: | -25 °C |
Appearance: | liquefied colourless gas under pressure |
Hazard Symbols: | F |
Risk Codes: | 11 |
Safety: | 16-33-36-38 |
Transport Information: | UN 1030 2.1 |
PSA: | 0.00000 |
LogP: | 1.27140 |
Conditions | Yield |
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With hydrogen fluoride; chromium(III) oxide at 200℃; under 1500.15 Torr; for 10 - 200h; Product distribution / selectivity; Molecular sieve MS-13X; | 96.2% |
With hydrogen fluoride; chromium(III) oxide at 200℃; under 1500.15 Torr; for 3 - 100h; Product distribution / selectivity; | 62% |
With hydrogen fluoride; antimonypentachloride at 50℃; im Autoklaven; |
Conditions | Yield |
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With xenon difluoride; silicon tetrafluoride at 20℃; for 24h; Fluorination; | A 25% B 63% C 9% |
Conditions | Yield |
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With hydrogen fluoride; iron(III) chloride; titanium tetrachloride at 90 - 120℃; under 7500.75 - 15001.5 Torr; for 1.5 - 30h; Product distribution / selectivity; | 46% |
With hydrogen fluoride; titanium tetrachloride at 95 - 120℃; under 7500.75 Torr; for 3.5 - 29h; Product distribution / selectivity; | 21% |
Ethyl trifluorovinyl ether
A
1,1-difluoroethane
B
1-fluoroethane
C
perfluoroethyl ethyl ether
Conditions | Yield |
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With cobalt (III) fluoride at -196 - 20℃; for 0.5h; Fluorination; | A 5% B 2% C 45% D 2% |
Conditions | Yield |
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With hydrogen fluoride; tin(ll) chloride at 60℃; under 1064 - 2660 Torr; | |
With hydrogen fluoride; tin(ll) chloride at 60℃; under 1064 - 2660 Torr; | |
With hydrogen fluoride; tin(ll) chloride at 60℃; under 1064 - 2660 Torr; |
Conditions | Yield |
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With mercury(II) fluoride | |
With mercury monofluoride; iodine |
Conditions | Yield |
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With hydrogen fluoride; lead dioxide at 100℃; unter Druck; |
Conditions | Yield |
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With palladium on activated charcoal at 120℃; Hydrogenation; |
Conditions | Yield |
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With palladium on activated charcoal at 120℃; Hydrogenation; |
Conditions | Yield |
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With hydrogen fluoride; boron trifluoride at 0 - 30℃; unter Druck; | |
With hydrogen fluoride; pyrographite; mercury(II) oxide at 20 - 40℃; | |
With aluminum(III) fluoride; hydrogen fluoride at 300℃; | |
With hydrogen fluoride; fluorosulphonic acid at 0℃; |
The Ethylidene difluoride, with the 75-37-6, has the IUPAC name of 1,1-difluoroethane. This is a kind of colourless liquid with the odour of ether, and its product categories are including Industrial/Fine Chemicals; refrigerants; Organics; Refrigerant. Besides, it is incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. If contacting with the liquid, it can cause frostbite, and it is easily ignited.
The physical properties of this chemical are as follows: (1)ACD/LogP: 0.65; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.65; (4)ACD/LogD (pH 7.4): 0.65; (5)ACD/BCF (pH 5.5): 1.84; (6)ACD/BCF (pH 7.4): 1.84; (7)ACD/KOC (pH 5.5): 53.85; (8)ACD/KOC (pH 7.4): 53.85; (9)#H bond acceptors: 0; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Polar Surface Area: 0; (13)Index of Refraction: 1.252; (14)Molar Refractivity: 11.6 cm3; (15)Molar Volume: 72.8 cm3; (16)Polarizability: 4.59 ×10-24 cm3; (17)Surface Tension: 9.5 dyne/cm; (18)Density: 0.907 g/cm3; (19)Enthalpy of Vaporization: 21.89 kJ/mol; (20)Vapour Pressure: 4100 mmHg at 25°C; (21)Exact Mass: 66.028107; (22)MonoIsotopic Mass: 66.028107; (23)Topological Polar Surface Area: 0; (24)Heavy Atom Count: 4; (25)Formal Charge: 0; (26)Complexity: 11.5.
The production method of this chemical is as below: Firstly. calcium carbide could react with water in the acetylene reactor to produce acetylene, and then go through washing, impurity by the sodium hypochlorite; Secondly, the purified acetylene has the complete drying and then put into the fluorination reactor; Thirdly, with the existence of sulfuryl fluoride, acetylene could react with hydrogen fluoride to produce crude Ethylidene difluoride; Lastly, go through the process of condensation, fractionation to get the products.
As to its usage, it is widely applied in many ways. It could be used as the Freon substitute, refrigerant, aerosol and so on; It could also be used as the important raw material of vinyl fluoride. Besides, it is also commonly found in electronic cleaning products, and many consumer aerosol products that must meet stringent VOC requirements.
When you are dealing with this chemical, please be more cautious. It is a kind of highly flammable chemicals which may catch fire in contact with air, only needing brief contact with an ignition source. And it has a very low flash point or evolve highly flammable gases in contact with water. Therefore, you should take the following instructions. Wear suitable protective clothing and then take precautionary measures against static discharges. Besides, keep away from sources of ignition - No smoking, and if in case of insufficient ventilation, wear suitable respiratory equipment. In addition, there is one hidden danger that is if under prolonged exposure to fire or heat, the containers may rupture violently and rocket, so you should be very careful while keeping this chemical.
In addition, you could convert the following datas into the molecular structure:
(1)Canonical SMILES: CC(F)F
(2)InChI: InChI=1S/C2H4F2/c1-2(3)4/h2H,1H3
(3)InChIKey: NPNPZTNLOVBDOC-UHFFFAOYSA-N
Below are the toxicity information of this chemical:
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
mouse | LC50 | inhalation | 977gm/m3/2H (977000mg/m3) | "Toxicometric Parameters of Industrial Toxic Chemicals Under Single Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects, GKNT, 1982Vol. -, Pg. 54, 1982. | |
rat | LCLo | inhalation | 64000ppm/4H (64000ppm) | Journal of Industrial Hygiene and Toxicology. Vol. 31, Pg. 343, 1949. | |
rat | LDLo | oral | > 1500mg/kg (1500mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) | National Technical Information Service. Vol. OTS0530083, |