Introduction to IOTA 705: A Revolution in Vacuum Technology

Silicone Diffusion Pump Oil IOTA 705 stands as a cornerstone in ultrahigh vacuum (UHV) technology, offering unparalleled performance in applications demanding extreme pressure conditions. Designed to operate seamlessly in the 5x(10⁻⁹~10⁻¹⁰) torr range (untrapped), this single-component, colorless, transparent fluid is engineered for industries where precision and reliability are non-negotiable. With a chemical composition of pentaphenyl trimethyl trisiloxane and a CAS No. of 3390-61-2, IOTA 705 is not just another diffusion pump oil—it’s a game-changer.

Key Features: Why IOTA 705 Outshines the Competition

1. Exceptional Vapor Pressure and Radiation Resistance
   IOTA 705 boasts an extrapolated vapor pressure of 3x10⁻¹⁰ torr at 25°C (77°F), making it ideal for UHV environments where even trace amounts of vapor can disrupt processes. Its resistance to radiation ensures longevity and stability in nuclear research, accelerators, and other high-energy applications.

2. Optimal Physical Properties

   • Specific Gravity: 1.090–1.100 ensures consistent flow and performance.
   • Viscosity: 170–175 cSt at 25°C and 61–64 cSt at 40°C provide excellent lubrication and sealing.
   • Flash Point: ≥243°C guarantees safety during handling and operation.
   • Refractive Index: 1.5765–1.5785 at 25°C ensures compatibility with optical systems.
   • Congealing Point: ≤–14 to –18°C allows use in low-temperature environments.

3. Molecular Stability
   With a molecular weight of 546, IOTA 705’s phenylmethylsiloxane oligomers resist decomposition, ensuring prolonged pump life and reduced maintenance costs.

Applications: Diverse Industries, One Solution

1. Electrical and Electronics Industry
   • TV Tubes, Fluorescent Tubes, CRTs: IOTA 705 ensures flawless vacuum sealing, enhancing product lifespan.
   • Capacitors and Rectifiers: Its low outgassing properties prevent electrical failures.
   • Vacuum Systems: Ideal for metallized film deposition in rectifiers and capacitors.
2. Optical Industry
   • Surface Improvements: Used in anti-reflective coatings and optical filters for precision optics.
   • Mirror Coatings: Enhances reflectivity and durability in high-end telescopes and lasers.
3. Metallurgy Industry
   • High-Vacuum Furnaces: Enables melting, degassing, and sintering of refractory metals like tungsten and molybdenum.
   • Thick-Film Deposition: Critical for semiconductor manufacturing and aerospace components.
4. Plastics Industry
   • Surface Treatments: Improves adhesion for protective and decorative coatings.
   • Mirror and Film Coatings: Enhances aesthetic and functional properties of plastic products.
5. Research and Development
   • Mass Spectrometry: Ensures accurate analysis by maintaining UHV conditions.
   • Accelerators and Molecular Plants: Reliable for particle physics and nuclear research.