359-35-3

Basic information

• Product Name: 1,1,2,2-TETRAFLUOROETHANE
• Synonyms: HFC-134;1,1,2,2-TETRAFLUOROETHANE;CHF2CHF2;ethane,1,1,2,2-tetrafluoro-;Freon 134;freon134;Fron134;R 134
• CAS NO: 359-35-3
• Molecular Formula: C₂H₂F₄
• Molecular Weight: 102.03
• EINECS: 206-628-3
• Product Categories: refrigerants
• Mol File: 359-35-3.mol
• Article Data: 20

Chemical Properties

• Melting Point: -89 °C
• Boiling Point: -23 °C
• Appearance: /
• Density: 1.2100 (estimate)
• Vapor Pressure: 3920mmHg at 25°C
• Refractive Index: 1.2735 (estimate)
• CAS DataBase Reference: 1,1,2,2-TETRAFLUOROETHANE(CAS DataBase Reference)
• NIST Chemistry Reference: 1,1,2,2-TETRAFLUOROETHANE(359-35-3)
• EPA Substance Registry System: 1,1,2,2-TETRAFLUOROETHANE(359-35-3)

Safety Data

• Hazard Codes: Xi
• Safety Statements: 23-38
• RIDADR: 3163
• Hazardous Substances Data: 359-35-3(Hazardous Substances Data)

Usage

General Description

1,1,2,2-Tetrafluoroethane is a colorless, odorless gas with the chemical formula C2H2F4. It is a halocarbon refrigerant with a low global warming potential and is commonly used as a propellant in aerosol products. It is non-flammable and has a relatively low toxicity, making it a safe and effective choice for a wide range of applications. 1,1,2,2-Tetrafluoroethane is also used in air conditioning and heat pump systems as a replacement for chlorofluorocarbons (CFCs) due to its lower impact on the ozone layer. Additionally, it is used in medical inhalers and as a blowing agent in the manufacture of foam plastics.

InChI:InChI=1/C2H2F4/c3-1(4)2(5)6/h1-2H

Upstream product

• 74-84-0 ethane 
• 1493-03-4 iododifluoromethane 
• 76-37-9 2,2,3,3-tetrafluoropropanol 
• 354-33-6 1,1,1,2,2-pentafluoroethane 
• 74-85-1 ethene 
• 624-72-6 1,2-difluoroethane 
• 79-27-6 1,1,2,2-tetrabromoethane 
• 76-14-2 1,2-dichloro-1,1,2,2-tetrafluoroethane 
• 75-10-5 Difluoromethane 
• 75-45-6 Chlorodifluoromethane 
• 79-01-6 Trichloroethylene 
• 663-20-7 1,2-Bis(dichlorphosphanyl)-tetrafluoraethan 
• 2670-13-5 difluoromethyl 
• 116-14-3 polytetrafluoroethylene 

Downstream Products

• 811-97-2 1,1,1,2-tetrafluoroethane 
• 75-88-7 1,1,1-trifluoro-2-chloroethane 
• 359-10-4 1-Chloro-2,2-difluoroethene 
• 79-01-6 Trichloroethylene 
• 359-11-5 1,1,2-trifluoroethylene 
• 75-73-0 carbon tetrafluoride 
• 354-33-6 1,1,1,2,2-pentafluoroethane 
• 76-19-7 freon-218 
• 76-16-4 Hexafluoroethane 
• 34557-54-5 methane 
• 75-10-5 Difluoromethane 
• 76-14-2 1,2-dichloro-1,1,2,2-tetrafluoroethane 
• 354-25-6 2-chloro-1,1,2,2-tetrafluoroethane 
• 471-43-2 1,1-dichloro-2,2-difluoroethane 

Relevant articles and documents

Synthesis and vibrational spectroscopy of 1,1,2,2-tetrafluoroethane and its13C2 and d2 isotopomers

The 13C2 and d2 isotopomers of 1,1,2,2-tetrafluoroethane (TFEA) have been synthesized. Raman spectra of these new species have been recorded, and infrared spectra of all three isotopomers, including some regions with high-resolution at -100°C, have also been recorded. Guided by recently published calculations of frequencies and infrared intensities and the new spectra, we have revised the previous assignments of fundamentals for the two rotamers of the normal species of TFEA. Assignments of the fundamentals for both rotamers of the 13C2 and d2 isotopomers are proposed. The anti rotamer is the more abundant species in the gas phase and, to a lesser extent, in the liquid phase and the only species in the crystal phase. Thus, the assignments of the anti rotamer of all three isotopic species are complete and supported by isotope product rules, but the assignments for the gauche rotamers are incomplete. Estimates of the missing frequencies for the gauche rotamer of the normal species are supplied.

Copper-Catalyzed Difluoromethylation of Aryl Iodides with (Difluoromethyl)zinc Reagent

The combination of difluoroiodomethane and zinc dust or diethylzinc can readily lead to (difluoromethyl)zinc reagents. Therefore, the first copper-catalyzed difluoromethylation of aryl iodides with the zinc reagents is accomplished to afford the difluorom

Investigation of CF2 carbene on the surface of activated charcoal in the synthesis of trifluoroiodomethane via vapor-phase catalytic reaction

This paper investigates the synthetic mechanism of trifluoroiodomethane (CF3I) in the reaction of trifluoromethane and iodine via vapor-phase catalytic reaction. It is suggested that CF2 carbene is the key intermediate and is formed in the pyrolysis process of CHF3 at high temperature. However, in pyrolysis of CHF3 under activated charcoal (AC) existing conditions, no C2F4 was detected. H2 and 2-methyl-2-butene could not trap the CF2 carbene. When treating the remained compounds on the used AC with H2, CH4 is formed on the process. It is proposed that CF2 carbene combines with AC strongly and transfers into CF3 radical on heat. In addition, it is found that the AC is not only the catalyst supporter to form CF3I, but also a co-catalyst to promote the formation of CF2 carbene and CF3 radical.