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JW705 diffusion pump oil 275#

This item is same as HIVAC-F-5 by Shin-Etsu in Japan, and DC-705, MT-705 by DOW CORNING in US.

 Molecular Structure

        C6H5     CH3   C6H5                  

         ︱       ︱    ︱  

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

         ︱       ︱    ︱   

        C6H5     CH3   C6H5     

Performance

With very low saturated vapor pressure and excellent heat stability as well as outstanding oxidation-resistant performance, the product is suitable for high vacuum industry, such as high vacuum smelting industry, high vacuum coating in electronic industry, atomic energy accelerators and electron microscopes and monitors, etc.

Specification:

Appearance：colorless transparent liquid

Viscosity (25℃) : mm²/s 165~185

Specific gravity:≥1.09

Refractive index:1.5765-1.5785

Flash point: ≥243℃

Congealing point: ≤-14℃

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.