• R404A

    Pentafluoroethane/Trifluoroethane/Tetrafluoroethane(R404A)

    CAS No.: 354-33-6/420-46-2/811-97-2 UN No.: 3337 CLASS No.: 2.2 Molecular formula: CHF2CF3/CH3CF3/CF3CH2F

    R404A is blended by R125, R134a and R143a, which is a colorless gas at room temperature and a colorless transparent liquid at its own pressure, and is mainly used in low to medium temperature refrigeration systems.

  • R404A

    R404A is a hydrofluorocarbon (HFC) blend consisting of R-125 (44%), R-143a (52%), and R-134a (4%). It has become one of the most widely used refrigerants in commercial refrigeration systems worldwide, particularly for low and medium-temperature applications.

  • Applications

    Supermarket Refrigeration

    Widely used in supermarket display cases, walk-in coolers, and frozen food storage.

    Transport Refrigeration

    Common in refrigerated trucks, trailers, and shipping containers for perishable goods.

    Convenience Stores

    Used in ice machines, beverage coolers, and small commercial refrigeration units.

    Industrial Refrigeration

    Applied in cold storage warehouses, food processing plants, and industrial chillers.

    Ice Cream Freezers

    Particularly effective in low-temperature applications like ice cream storage and display.

    Hospitality Industry

    Used in hotel mini-bars, restaurant walk-in freezers, and commercial ice makers.

  • Physical & Chemical Properties

    Chemical Composition

    R404A is a ternary blend of:

    R-125 (Pentafluoroethane): CAS 354-33-6 (44%)

    R-143a (1,1,1-Trifluoroethane): CAS 420-46-2 (52%)

    R-134a (1,1,1,2-Tetrafluoroethane): CAS 811-97-2 (4%)

    Physical Properties

    Boiling Point: -46.1°C (-51°F)
    Critical Temperature: 72.1°C (161.8°F)
    Critical Pressure: 3732 kPa (541 psia)
    Liquid Density: 1.045 g/cm³ at 25°C
    ODP (Ozone Depletion Potential): 0

    Environmental Impact

    Global Warming Potential (GWP): 3922 (AR5)
    Atmospheric Lifetime: 16.3 years
    Safety Classification: A1/A1 (non-flammable, low toxicity)
    Montreal Protocol: Not controlled (HFC)

  • Packaging, Storage & Transportation

    Packaging

    Available in disposable cylinders: 10kg, 12kg, 24kg sizes
    Returnable cylinders: 50kg, 100kg, 500kg, 1000kg
    ISO containers for bulk transport
    Cylinders are color-coded with a light green shoulder (ASHRAE Standard 34)
    All containers must meet DOT/ISO specifications for pressure vessels

    Storage

    Store in a cool, dry, well-ventilated area
    Keep away from direct sunlight and heat sources
    Temperature should not exceed 50°C (122°F)
    Keep containers tightly closed when not in use
    Store away from incompatible materials (strong oxidizers, alkalis)
    Implement proper inventory rotation (FIFO system)

    Transportation

    Classified as a non-flammable gas (UN/ID No. 1078)
    Transport in upright position to prevent liquid leakage
    Secure containers to prevent movement during transit
    Follow local and international transport regulations
    Avoid exposure to extreme temperatures during transport
    Emergency response information must accompany shipments

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