Product Chemical Name and Structure:
Product Item：IOTA 702
Chemical Name: Mixed phenylmethyl-dimethyl cyclosiloxane
English： Mixed phenylmethyl-dimethyl cyclosiloxane
CAS NO: 68037-71-8
EINECS No.:
Chemical Structural Formula
—Si(CH₃)₂—O—Si(C₆H₅)(CH₃)—O—Si(CH₃)₂—O— ...
English and Chinese alternative names:
1. Mixed phenylmethyl-dimethyl cyclosiloxane 苯甲基二甲基环硅氧烷混合物
2. 702 Super high vacuum diffusion pump oil 702 超高真空扩散泵油
3. 702 diffusion pump fluid 702 扩散泵液
4. Phenylmethylsiloxane Oligomers 苯甲基硅氧烷低聚物
5. Oil for diffusion pump 扩散泵油
6. Silicone oil for diffusion pump 扩散泵用硅油
7. Silicone diffusion pump oil 硅酮扩散泵油
Product Description:
Vaccum Diffusion Pump Oil IOTA 702 is a kind of general purpose oil designed for fast pumping of large volumes of gas. It is used to produce vacuums in the range of 10-5 to 10-7 torr. It possesses excellent heat stability, good resistance to oxidation and radiation. Its vapour pressure is very low under room temperature, and changes sharply with the variation of temperature.
Equivalent Brand: Diffusion Pump Oil Dow Corning 702)
Technical Specifications:
Chemical composition: Mixed phenylmethyl-dimethyl cyclosiloxane
Ultimate Vacuum, torr(untrapped):10-6
Saturated Vapor Pressure, torr: 1x10-6
Specific Gravity: 1.08
Viscosity (25°C), cSt: 40±3
Flash Point °C: 300
Refractive Index 25°C: 1.51-1.53
Performance and Applications:
Diffusion Pump Oil IOTA 702 can be used in variety of applications, including:
Electrical and electronics industry
TV tubes, fluorescent tubes, cathode ray tubes
ordinary bulbs
capacitors
rectifier metallised film vacuum system
Optical industry
surface improvements
anti reflective coatings
optical filters and mirrors
Metallurgy industry
high-vacuum furnaces
melting, degassing and sintering refractory metals; thick-film deposition
Plastics industry
surface improvements
mirror coatings
protective coatings
film coatings
Other industries
processing metals and fuels
accelerators
molecular plants
R & D plants
mass spectrometry
Others
Be used as transmission fluid in high-temperature carriers and various instruments.
Packaging and Storage:
1. Vaccum Diffusion Pump Oil IOTA 702 is available in 1kg plastic bottles, 1gallon plastic drums, 5kg plastic drums, 25kg plastic drums, 25kg Iron drums or 200kg Iron drums.
2. Transport as non-hazardous chemicals, keeping away from rain and sunlight.
3. Shelf life: 2 years.
