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1,1,1,3,3-Pentafluoropropane

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Origin: China

Cas No: 460-73-1

Specification: 99%min

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  • Products Specification
  • Product Description
  • Property

    CAS No.: 460-73-1 Formula: C3H3F5 Molecular Weight: 134.04800

    Description

    1,1,1,3,3-Pentafluoropropane (HFC-245fa) is a hydrofluorocarbon used primarily for closed-cell spray foam insulation produced by Honeywell and in Asia by Sinochem. Honeywell markets HFC-245fa under the Enovate and Genetron 245fa brand names. HFC-245fa is also known as pentafluoropropane and by its chemical name 1,1,1,3,3,-pentafluoropropane. Unlike CFC and HCFC blowing agents formerly used for this purpose, it has no ozone depletion potential and is nearly non-toxic. Although it is intended to remain trapped within the foam insulation, it is practically non biodegradable with a lifetime of 7.2 years when it eventually does escape into the atmosphere. It does have a high global warming potential of 950 (950 times the global warming effect of CO2). Honeywell refers to this as "acceptable" in their literature, but they don't include the actual number.
    AlliedSignal, who adopted the Honeywell name after acquiring it, decided in 1999 to provide a non ozone depleting blowing agent as an alternative for dichlorofluoroethane (HCFC-141b) and trichlorofluoromethane (CFC-11). Competitors Atofina and General Electric pursued strategies using other agents. One of the disadvantages of R-245fa is its cost. In 2000 R-141b cost one US dollar per pound, whereas R-245fa cost $2.50 to $4.00 per pound. As of 2007, and prior to Sinochem's production it was already a high volume production chemical, with over 1 million pounds produced annually.

    Basic Info

    Chemical Name 1,1,1,3,3-Pentafluoropropane
    Synonyms

    HFC-245FA;
    1,1,1,3,3-Pentafluoropropane;
    R-245fa;
    1,1,1,3,3-Pentafluorpropan;
    1,1,1,3,3-pentafluoro-propane;
    HCFC-245fa;
    FC-245fa;
    1,1,1,3,3-Pentafluor;
    1,1,3,3,3-Pentafluoropropane;
    Pentafluoropropane;
    HCF-245FA;

    CAS No. 460-73-1
    Molecular Formula C3H3F5
    Molecular Weight 134.04800
    PSA 0.00000
    LogP 2.20390

    Properties

    Appearance & Physical State colourless gas
    Density 15
    Boiling Point 8.1ºC at 760 mmHg
    Melting Point -102ºC
    Refractive Index 1.295
    Stability Stable.
    Vapor Pressure 758mmHg at 25°C

    Safety Info

    Hazard Class 2.2
    Safety Statements S16-S23-S9
    HS Code 2903399090
    RIDADR UN 3163
    Risk Statements R12

    Synthesis Route

    1,1,1,3,3-Pentachloropropane3-CHLORO-1,1,1,3-TETRAFLUOROPROPANE+1,1,1,3,3-Pentafluoropropane
    1,1,1,3,3-Pentachloropropane1,1,1,3,3-Pentafluoropropane
    1,1,1,3,3,3-Hexafluoropropane1,1,1,3,3-Pentafluoropropane

    Precursor

    1,1,1,3,3-Pentachloropropane
    3-CHLORO-1,1,1,3-TETRAFLUOROPROPANE
    1-Propene, 1-chloro-3,3,3-trifluoro-, (1Z)-
    1,1,1,3,3,3-Hexafluoropropane

    Downstream Product

    1,1,1-Trichlorotrifluoroethane
    1-Chloro-1,1,3,3,3-pentafluoropropane
    2-CHLORO-1,1,1-TRIFLUOROETHANE
    1,2,2-trichloro-1,1,3,3,3-pentafluoropropane

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