Hangzhou Ruijiang Chemical Co., Ltd.
Main products:Pigment, Cosmetic raw, Agro chemicals, Titanium Dioxide, Dyeing chemicals, Food ingredient, Dried fruit
Products
Contact Us
  • Contact Person : Mr. XU KEVIN
  • Company Name : Hangzhou Ruijiang Chemical Co., Ltd.
  • Tel : 0086-0571-88914509
  • Fax : 0086-0571-88854175
  • Address : Zhejiang,Hangzhou,Floor 12th.,No.99,Huaxing Road,Hangzhou,Zhejiang,China
  • Country/Region : China
  • Zip : 310012

silicone oil RJ-275 for diffusion pump

silicone oil RJ-275 for diffusion pump
Product Detailed
1. We have been producing Diffusion Pump Oil for 23 years 2. Our RJ-275 is equivalent to DC705 3. Our price is very favorable

Production Description

Chemical structure: 

Equivalent Brand: Dow Corning 705, MT-705, and HIVAC-F-5

Diffusion Pump Oil RJ-275 is a colorless to light yellow transparent oily, single-component fluid designed for ultrahigh vacuum applications in the range of 5x(10-9~10-10 ) torr (untrapped). The vapor pressure and backstreaming rate of RJ-275 is so low that the use of traps or refrigeration is unnecessary for some ultra-high and ultra-clean vacuum applications. It has the highest phenyl content of all silicone diffusion pump oils and the best resistance to radiation.

Technical Index

Property

Specification

Chemical composition

Pentaphenyl trimethyl trisiloxane

Ultimate Vacuum, torr

(untrapped)

5x(10-9~10-10)

Saturated Vapor Pressure, torr

5x10-10

Specific Gravity

1.090 ~ 1.100

Viscosity (25°C), cSt

170~175

Flash Point °C

≥243

Refractive Index 25°C

1.555~1.588

Congealing Point °C

≤-14 ~ -18

Molecular Description

546

Applications

RJ275 is suitable for high vacuum industry, such as high vacuum smelting industry, high vacuum coating in electronic industry, atomic energy accelerators and electronic microscopes and monitors, etc.

Package, Transportation & Storage

Packed in 5KG Plastic Drums, 25KG Plastic drums, 25KG Iron drums or 200KG Iron drums.

Transport as non-hazardous chemicals, keeping away from rain and sunlight.

Shelf life: 3 years. 

silicone oil RJ-275 for diffusion pump



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