374334
1,1,1,2-Tetrafluoroethane
≥99%
Synonym(s):
HFC-134a
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About This Item
Linear Formula:
FCH2CF3
CAS Number:
Molecular Weight:
102.03
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12142100
EC Number:
212-377-0
MDL number:
Assay:
≥99%
InChI key
LVGUZGTVOIAKKC-UHFFFAOYSA-N
InChI
1S/C2H2F4/c3-1-2(4,5)6/h1H2
SMILES string
FCC(F)(F)F
assay
≥99%
bp
−26.5 °C (lit.)
functional group
fluoro
General description
1,1,1,2-Tetrafluoroethane is used as a trifluorovinylating agent in organic synthesis. It is identified as a potential refrigerant used in place of chlorofluorocarbons. 1,1,1,2-Tetrafluoroethane can also be used as a solvent and medical propellant for a wide range of applications. It is used to extract materials of natural origin like natural flavors, fragrances, and nutraceuticals.
Application
1,1,1,2-Tetrafluoroethane can be used:
- As a solvent in the preparation of cross-linked polymer microspheres through the dispersion polymerization method.
- As a porogenic solvent in the preparation of porous polymethacrylate monolith via free radical polymerization.
- In the synthesis of trifluorovinyllithium, a key intermediate for the preparation of 2-halo-2,3-dideoxy-arabinose derivatives of biological importance.
Packaging
Supplied in a Sure/Pac™ cylinder and has a brass needle valve with a male 1/4" NPTF outlet thread installed. Before using the cylinder, ensure that the valve is closed, then remove the galvanized steel hex cap that seals the outlet valve.
Compatible with the following:
Compatible with the following:
Legal Information
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC
signalword
Warning
hcodes
pcodes
Hazard Classifications
Press. Gas Compr. Gas
Storage Class
2A - Gases
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
Regulatory Information
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Synthesis of porous cross-linked polymer monoliths using 1, 1, 1, 2-tetrafluoroethane (R134a) as the porogen
Hebb AK, et al.
Composites Science and Technology, 63(16), 2379-2387 (2003)
P D Levin et al.
British journal of anaesthesia, 92(6), 865-869 (2004-05-04)
1,1,1,2 Tetrafluoroethane is a hydrofluoroalkane (HFA) that is replacing chlorofluorocarbons (CFC) as a medical aerosol propellant in an attempt to reduce damage to the ozone layer. This study compared the effects of HFA- and CFC-based inhalers on four anaesthetic gas
Polymer synthesis using hydrofluorocarbon solvents. 1. Synthesis of cross-linked polymers by dispersion polymerization in 1, 1, 1, 2-tetrafluoroethane
Wood CD, et al.
Macromolecules, 35(18), 6743-6746 (2002)
Alejandra Romero-Montero et al.
Materials science & engineering. C, Materials for biological applications, 115, 111154-111154 (2020-07-01)
Enzymatic mediated poly (gallic acid) (PGAL), a stable multiradical polyanion with helicoidal secondary structure and high antioxidant capacity, was successfully grafted to poly(ε-caprolactone) (PCL) using UV-photo induction. PCL films were prepared with several levels of roughness and subsequently grafted with
Yongwon Seo et al.
Environmental science & technology, 38(17), 4635-4639 (2004-10-06)
A new separation method using gas hydrate formation is proposed for separating HFC-134a from gas mixtures containing N2 and HFC-134a. The feasibility of this separation method was investigated from various points of view. First, to determine the mixed hydrate stability
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