Product Chemical Name and Structure:
Product Item：IOTA 704
Chemical Name:Tetramethyl tetraphenyl trisiloxane
English： Tetramethyl tetraphenyl trisiloxane
CAS NO: 3982-82-9
EINECS No.: 223-620-5
Chemical Structural Formula
Ph2Si(CH3) — O — Si(CH3)2 — O — Si(CH3)Ph2
English and Chinese alternative names:
1. 1,1,5,5-Tetraphenyl-1,3,3,5-tetramethyltrisiloxane 1,1,5,5-四苯基-1,3,3,5-四甲基三硅氧烷
2. 704 silicone diffusion pump Fluid 704型硅油扩散泵液
3. 704 diffusion pump fluid 704型扩散泵油
4. Oil for diffusion pumps 扩散泵用油
Product Description:
Diffusion Pump Oil IOTA 704 is a colorless transparent oily, single-component fluid designed for high vacuum of 10-7torr (untrapped). It performs well in tough, rugged applications and offers quick pump down, even after exposure to air at operating temperatures. IOTA704 is thermally and chemically stable allowing it to keep pump jets free of tars and hard carbon.
Equivalent Brand: Diffusion Pump Oil Dow Corning 704)
Technical Specifications:
Chemical composition: Tetramethyl tetraphenyl trisiloxane
Ultimate Vacuum, torr (untrapped): 10-7~10-8
Saturated Vapor Pressure, torr : 5x10-8
Specific Gravity: 1.06 ~ 1.07
Viscosity (25°C), cSt: 38±3
Flash Point °C: ≥210
Refractive Index 25°C: 1.5500~1.5600
Congealing Point °C: -35
Molecular Description: 484
Performance and Applications:
Diffusion Pump Fluid IOTA 704 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. Diffusion Pump Oil IOTA 704 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: 3 years.
