Appearance and Basic Physical Parameters
As a working fluid specifically designed for high-vacuum environments, vacuum diffusion pump oil IOTA 705 presents as a colorless and transparent oily liquid. Its basic physical parameters are strictly controlled: at 25℃, the kinematic viscosity is stable at 170~175 mm²/s, the refractive index is maintained between 1.5765 and 1.5785, and the relative density is 1.090~1.10. In terms of temperature adaptability, its flash point (open cup) is ≥243℃, and the freezing point is ≤-14~-18℃. This allows it to maintain a stable physical state over a wide temperature range, meeting the startup and operation requirements of different equipment. Low Vapor Pressure and Oxidation Resistance
The core competitiveness of IOTA 705 lies in its extremely low saturated vapor pressure (<3x10⁻¹⁰ torr) and excellent ultimate vacuum (<1x(10⁻⁹~10⁻¹⁰) torr). During the actual operation of diffusion pumps, the oil needs to withstand continuous high temperatures, and IOTA 705 demonstrates good thermal stability, making it less likely to decompose at high temperatures. At the same time, its good oxidation resistance effectively delays the aging process of the oil when exposed to trace amounts of air, reducing the generation of sludge and acidic substances, thereby lowering equipment maintenance frequency and ensuring the cleanliness of the vacuum system. Technical Support in Multiple Fields
This combination of low vapor pressure and high stability makes IOTA 705 an ideal choice for many high-precision industries. It is not only used in the high-vacuum smelting industry and electron tube industry but also provides a stable vacuum environment in fields such as light bulb manufacturing and high-vacuum coating. In scientific research and cutting-edge technology, the manufacturing and operation of atomic energy accelerators, electron microscopes, and various high-end display equipment are inseparable from the support of such high-performance diffusion pump oils, which provide a solid fluid guarantee for the normal operation of these precision instruments.
Silicone Diffusion Pump Oil IOTA 705-IOTA