-40%
MT-704 Diffusion Pump Oil - 500cc | High Vacuum | Dow Corning Equivalent

MT-704 Diffusion Pump Oil - 500cc | High Vacuum | Dow Corning Equivalent

$ 95.04

Availability: 21 in stock
  • Brand: Midwest Tungsten Service
  • MPN: MT-704 (500cc)
  • All returns accepted: Returns Accepted
  • Modified Item: No
  • Item must be returned within: 30 Days
  • Non-Domestic Product: No
  • Condition: New
  • Custom Bundle: No
  • Refund will be given as: Money Back
  • Return shipping will be paid by: Buyer

    Description

    MTS Offers 702, 704 & 705 Pump Oil & Dow Corning High Vacuum Grease
    This listing is for our MT-704 diffusion pump oil.
    Dow Corning no longer offers DC-702, DC-704, and DC-705 for sale to the general market. Midwest Tungsten has filled the gap by offering private label 702, 704, and 705 chemically equivalent products in gallon containers and 500 cc bottles. Our MT-702, MT-704, and MT-705 are all in stock for immediate delivery.
    MT-704
    diffusion pump fluid is a single component fluid for high vacuums of 10E-6 to 10E-8 torr, untrapped or 10E-10 to 10E-11, trapped. It performs well in tough, rugged applications and offers quick pumpdown, even after exposure to air at operating temperatures, although this is not recommended. Replacement for and equivalent to Dow Corning DC-704. Sold as DS-704 and Invoil 704 elsewhere.
    MT-702 and MT-705 are available in separate listings.
    SPECIFICATION
    MT-702
    MT-704
    MT-705
    Molecular Description
    Mixed phenylmethyl dimethyl cyclosiloxane
    Tetramethyl tetraphenyl trisiloxane
    Pentaphenyl trimethyl trisiloxane
    Color
    Clear
    Light Straw
    Clear/Light Straw
    Ultimate Untrapped Vacuum (torr)
    10E-5
    10E-7 to 10E-8
    5 E-9
    Ultimate Trapped Vacuum
    –
    to 10E-11
    to 10E-11
    Extrapolated Vapor Pressure at 25 ºC
    1 x 10E-6
    2.1 x 10E-8
    5 x 10E-10
    Specific Gravity at 25 ºC
    1.07
    1.07
    1.09
    Viscocity at 25 ºC
    45
    39
    175
    Flash Point, open cup (ºC)
    193
    221
    243
    Boiling point, 0.5 torr (ºC)
    180
    215
    245
    Typical Boiler Temperature (ºC)
    190
    220
    260
    Heat of Vaporization (kcal/gm mole)
    21.7/190 ºC
    25.5/200 ºC
    28.2/250 ºC
    Surface Tension (dynes)
    30
    37.3
    36.5
    Molecular Weight
    –
    484
    546
    Price per gallon
    5.00
    5.00
    5.00
    Please note, this listing is for a 500cc bottle. Above pricing, per gallon, is available in a separate listing.