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Daikin Industries, Ltd. Company Logo
DEMNUM S-65, a cutting-edge solution for base chemicals and intermediates. Boasting excellent durability, high chemical stability, and solvent resistance, this perfluoropolyether oil, with a straight-chain structure developed through DAIKIN's original technology, stands out for its thermal stability and inertness. Ideal for applications requiring superior lubrication, it excels in ensuring both durability and cleanliness.

Chemical Family: Fluoropolymers, Perfluoropolyethers (PFPE)

Functions: Lubricant

    Knowde Enhanced TDS

    Identification & Functionality

    Base Chemicals Functions
    Structural Formula

    F-(CF₂CF2CF₂O)n-CF₂CF₃

    Features & Benefits

    Product Highlights
    • DEMNUM is a perfluoropolyether oil that has a straight-chain structure developed using DAIKIN’s original technology.
    • Excellent thermal and chemical stability and inertness.
    • Excellent solvent resistance.
    • It is suitable for usage as a lubricant especially where durability and cleanliness are required.

    Properties

    Physical Properties
    ValueUnitsTest Method / Conditions
    Average Molecular Weight4500¹⁹F-NMR
    Density (at 20°C)1.87g/cm³Specific Gravity Bottle Method
    Dielectric Breakdown Voltage (at 2.5mm)72kV
    Glass Transition Temperature-111°CDSC
    Kinematic Viscosity (at 100°C)15cStB-type viscometer
    Kinematic Viscosity (at 20°C)150cStB-type viscometer
    Kinematic Viscosity (at 40°C)65cStB-type viscometer
    Kinematic Viscosity (at 60°C)33cStB-type viscometer
    Pour Point -65°CJIS K2269
    Refractive Index (nD)(at 20°C)1.295Refractometer
    Specific Heat1J/g°CAdiabatic Method
    Surface Tension18mN/mWilhelmy
    Vapor Pressure (at 100°C)3×10⁻⁴MPaBoiling point Method
    Vapor Pressure (at 20°C)3×10⁻⁷MPaBoiling point Method
    Viscosity Index180JIS K2283
    Note

    * The above numeric values are representative and not guaranteed.

    Safety & Health

    Handling / Safety Information
    • Be sure to read the notes on SDS and labels before use.
    • This product is intended for general industry, and therefore its adequacy and safety as a raw material for medical purposes cannot be guaranteed.

    Packaging & Availability

    Packaging Type
    Packing Specification

    DEMNUM: 1 Kg (plastic bottle), 25 Kg (can)