JW704 diffusion pump oil

This item is same as HIVAC-F-4 by Shin-Etsu in Japan, and DC-704, MT-704 by DOW CORNING in US.

 Molecular Structure

         C₆H₅    CH₃     C₆H₅                  

         ︱       ︱       ︱  

     CH₃-Si -O-〔-Si-O-〕- Si -CH₃                                         

         ︱       ︱       ︱   

        C₆H₅     CH₃     C₆H₅     

Performance

The product is colorless transparent oil liquid with good resistance to oxidation, lower saturated vapor pressure, high vacuum and stable performance, as well as long service life. It is mainly suitable for ultra-high Vacuum Diffusion Pumps used in areas of electronics, instruments ,capacitor equipment coating,a variety of packaging materials, metallurgy and lens color coating etc.,for ultra-high vacuum diffusion pump oil ,also can be used as transmission fluid in high-temperature carriers ans various instruments.

Specification

Appearance: colorless transparent liquid

Viscosity (25℃) :40±4cs

Specific gravity(25℃):≥1.05

Refractive index:1.500-1.560

Flash point: ≥210℃

Congealing point: ≤-35℃

Ultimate Vacuum: 10^-7~10^-8Pa

Term of validity

This item is non-hazardous chemicals. Just well protected against dampness, moisture , sun etc when storage and transportation.  The term of validity is 2 years. But It can be extendable to 5-10 years under effective package & storage conditions.