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374334

Sigma-Aldrich

1,1,1,2-Tetrafluorethan

≥99%

Synonym(e):

HFC-134a

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About This Item

Lineare Formel:
FCH2CF3
CAS-Nummer:
811-97-2
Molekulargewicht:
102.03
EG-Nummer:
212-377-0
MDL-Nummer:
MFCD00066608
UNSPSC-Code:
12142100
PubChem Substanz-ID:
24863300
NACRES:
NA.22

Assay

≥99%

bp

−26.5 °C (lit.)

Funktionelle Gruppe

fluoro

SMILES String

FCC(F)(F)F

InChI

1S/C2H2F4/c3-1-2(4,5)6/h1H2

InChIKey

LVGUZGTVOIAKKC-UHFFFAOYSA-N

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Allgemeine Beschreibung

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.[1][2]

Anwendung

1,1,1,2-Tetrafluoroethane can be used:
  • As a solvent in the preparation of cross-linked polymer microspheres through the dispersion polymerization method.[3]
  • As a porogenic solvent in the preparation of porous polymethacrylate monolith via free radical polymerization.[4]
  • In the synthesis of trifluorovinyllithium, a key intermediate for the preparation of 2-halo-2,3-dideoxy-arabinose derivatives of biological importance.[5]

Verpackung

Packaged in Sure/Pac™ carbon steel cylinders with 1/4" NPTM brass needle valve

Rechtliche Hinweise

Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
Sure/Pac is a trademark of Sigma-Aldrich Co. LLC

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Piktogramme

Gas cylinder
GHS04

Signalwort

Warning

H-Sätze

H280

P-Sätze

P410 + P403

Gefahreneinstufungen

Press. Gas Compr. Gas

Lagerklassenschlüssel

2A - Gases

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
SHBP7561
SHBM9829
SHBM5331
SHBK9275
SHBH4927V

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Sigma-Aldrich

567191

2,2,3,3-Tetrafluor-1,4-butandiol

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
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)
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
1, 1, 1, 2-Tetrafluoroethane; from refrigerant and propellant to solvent
Corr S
Journal of Fluorine Chemistry, 118(1-2), 55-67 (2002)
Yang Chen et al.
Pharmaceutical research, 32(9), 2928-2936 (2015-03-20)
This study investigated the effect of different active pharmaceutical ingredients (API) on aerosol electrostatic charges and aerosol performances for pressurized metered dose inhalers (pMDIs), using both insulating and conducting actuators. Five solution-based pMDIs containing different API ingredients including: beclomethasone dipropionate
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Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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