• R152A

    1,1-Difluoroethane

    CAS No.: 75-37-6 UN No.: 1030 CLASS No.: 2.1 Molecular formula: CH3CHF2

    It is used as foaming agent, aerosol, detargent.

  • R152a

    R152a (1,1-Difluoroethane), also known as HFC-152a, is a fluorinated hydrocarbon used primarily as a refrigerant and propellant. With a low Global Warming Potential (GWP) of 124, it serves as an environmentally friendly alternative to high-GWP refrigerants like R134a.

    This compound is a colorless gas with a faint ethereal odor at room temperature and pressure. It is slightly soluble in water and highly soluble in organic solvents. R152a is classified as an A2 refrigerant with low toxicity and moderate flammability.

  • Applications

    Refrigeration

    Used in medium-temperature refrigeration systems, domestic refrigerators, and as a component in refrigerant blends like R-404A and R-407 series.

    Aerosol Propellant

    Commonly employed as a propellant in aerosol products including dusters, air sprays, and personal care products due to its low toxicity.

    Foam Blowing Agent

    Used in the production of extruded polystyrene (XPS) and polyurethane foams as a blowing agent with low GWP.

    Industrial Solvent

    Acts as a solvent in precision cleaning applications for electronics and metal parts due to its favorable evaporation rate.

    Chemical Intermediate

    Serves as an intermediate in the production of pharmaceuticals, agrochemicals, and other fluorinated compounds.

    Automotive A/C Systems

    Used as an alternative refrigerant in mobile air conditioning systems, especially in retrofit applications for older vehicles.

  • Physical & Chemical Properties

    Basic & Physical Properties

    Molecular Weight: 66.05 g/mol

    Boiling Point (1 atm): -24.0°C (-11.2°F)

    Freezing Point: -117°C (-179°F)

    Critical Temperature: 113.5°C (236.3°F)

    Critical Pressure: 4.52 MPa (655 psia)

    Liquid Density (25°C): ~910 kg/m³

    Vapor Density (air=1): 2.3

    Specific Heat (Liquid, 25°C): ~1.77 kJ/(kg·K)

    ODP (Ozone Depletion): 0

    GWP (Global Warming): 138 (IPCC AR5)

    Chemical & Safety Properties

    Flammability: Class A2 - Flammable (Not A2L). Easier to ignite than R32.

    Lower Flammability Limit (LFL): 3.9% by volume in air (Highly flammable)

    Upper Flammability Limit (UFL): 16.9% by volume

    Auto-Ignition Temperature: ~455°C (851°F)

    Toxicity: Class A (Low acute toxicity, simple asphyxiant).

    Stability: Thermally stable under normal conditions. Decomposes in flames producing toxic HF.

    Material Compatibility: Compatible with most metals. Requires POE oils and specific elastomers (e.g., HNBR).

    Thermodynamic & Performance Profile

    Volumetric Cooling Capacity: ~40% lower than R134a. This is its main performance limitation.

    Coefficient of Performance (COP): Similar to or slightly better than R134a.

    Pressure Levels: Lower operating pressures than R134a.

    Critical Temperature: High, which can be beneficial in heat pump applications.

    Miscibility: Fully miscible with Polyol Ester (POE) oils.

  • Packaging, Storage & Transportation

    Packaging Options

    Disposable Cylinders: 10L/10kg, 12L/12kg, 13.6L/30lb, 18kg

    Returnable Cylinders: 10L/10kg, 12L/12kg, 13.6L/30lb, 18kg

    ISO Containers: 20ft ISO tank container

    Storage Guidelines

    Store in a cool, dry, well-ventilated area

    Keep away from heat sources and ignition points

    Maintain storage temperature below 50°C (122°F)

    Keep containers tightly closed and upright

    Separate from oxidizing agents and strong bases

    Transportation

    UN Number: UN1030

    Proper Shipping Name: Difluoroethane

    Hazard Class: 2.1 (Flammable Gas)

    Transport in upright position

    Secure cylinders during transport

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