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    Hydrofluoroether
    Electrolytic Fluorinating Solution HFE-347 Hydrofluoroether
    HFE-347 (CAS 406-78-0) is a hydrofluoroether solvent (1,1,2,2-tetrafluoroethyl 2,2,2-trifluoroethyl ether) engineered for high-performance cleaning, drying and carrier applications in electronics, precision optics and specialty fluids. It combines very low surface tension and good material compatibility with a favorable environmental profile compared with legacy chlorinated solvents.
    Synonyms
    HFE-347; HFE-347pc-f; 1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether; FC13-3400 (vendor code examples)
    Applications
    • Precision electronics cleaning — flux and particle removal from assemblies and circuitry; excellent material compatibility and fast drying.
    • Carrier / diluent for specialty formulations — diluent for anti-fingerprint agents, coatings and surface treatments.
    • Thermal management / dielectric fluids — used in specialty cooling or vapor-phase processes where chemical stability and low residue are required.
    • Replacement for higher-GWP or ozone-depleting solvents — engineered to lower environmental impact while retaining solvency/evaporation performance.
    Physical and Chemical Properties
    Property Value
    Boiling point, °C 56
    Freezing point, °C -94
    Liquid density, g/ml, @ 25°C 1.47
    Surface tension (dyne/cm) @25°C 16.4
    Vapor pressure mmHg @ 25°C 232
    Evaporation heat, cal/g @ Boiling Point 39
    Solubility in water, ppm 100
    Dissolving power, KB N/A
    Cleaning application Solvent application
    Synonyms: HFE-347；HFE-347pc-f; 1,1,2,2-Tetrafluoroethyl 2,2,2-trifluoroethyl ether
    CAS NO.: 406-78-0
    Molecular Formula:

    C₄H₃F₇O
    Structure:
    Molecular Weight: 200.04
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