Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Eastman Diphenyl Ether

Eastman Diphenyl Ether is a high-purity aromatic ether from Eastman’s specialty solvents series, offering exceptional thermal stability and low volatility. Widely used as a heat-transfer fluid in organic heat carrier systems and as a solvent in polymer processing, it features low vapor pressure, high boiling point (~259°C), and excellent chemical inertness. Ideal for demanding industrial applications requiring consistent performance under elevated temperatures.
  • eastman diphenyl ether_9d73dbf4
  • eastman diphenyl ether_9d73dbf4

Features Of Eastman Diphenyl Ether

  1. High thermal stability with decomposition onset above 300 °C.

  2. Low volatility and excellent resistance to oxidation at elevated temperatures.

  3. Chemically inert toward common plastics, elastomers, and metal surfaces.

  4. Non-corrosive and compatible with copper, stainless steel, and aluminum systems.

  5. Low water solubility and hydrophobic nature enhances moisture resistance in formulations.

Typical Applications Of Eastman Diphenyl Ether

  1. Heat transfer fluid in closed-loop industrial heating systems operating up to 250 °C.

  2. Intermediate in the synthesis of flame-retardant additives and specialty resins.

  3. Carrier solvent for high-temperature coatings and ceramic binder systems.

  4. Component in thermal insulation pastes and phase-change material formulations.

  5. Stabilizer and processing aid in high-performance polymer compounding processes.

Specifications Of Eastman Diphenyl Ether

Chemical TypeAromatic ether
Product FormPale yellow to colorless liquid
AppearanceClear, transparent liquid at room temperature
Molecular Weight168.2 g/mol
Boiling Point (760 mmHg)259 °C
Flash Point (COC)124 °C
Density (20 °C)1.07–1.08 g/cm³
Refractive Index (20 °C)1.582–1.586


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