The Pinnacle of Vacuum Engineering

Silicone Diffusion Pump Oil IOTA 704, often referred to as 704 silicone diffusion pump fluid or simply oil for diffusion pumps, is a testament to the art and science of vacuum engineering. With its CAS number 3982-82-9 and chemical structure as 1,1,5,5-Tetraphenyl-1,3,3,5-tetramethyltrisiloxane, IOTA 704 sets the standard for high-vacuum performance, offering vacuum levels as low as 10-7 to 10-8 torr, untrapped. Its quick pump-down capabilities, even after exposure to air, make it a favorite in industries where time is of the essence.

Unmatched Stability and Durability

The thermal and chemical stability of IOTA 704 is a cornerstone of its success. This stability ensures that the pump remains free from contaminants like tars and hard carbon, preserving the integrity of the vacuum system. Its physical properties, including a specific gravity of 1.06 to 1.07 and a viscosity of 38±3 cSt at 25°C, are carefully calibrated to ensure optimal performance. The flash point of ≥210°C and congealing point of -35°C further enhance its versatility, allowing it to function reliably in a wide range of operating conditions.

Transforming Industries with Precision

The applications of IOTA 704 span a multitude of industries, each benefiting from its precision and reliability. In the electrical and electronics sector, it plays a crucial role in the manufacturing of TV tubes, fluorescent tubes, and cathode ray tubes, ensuring that these components meet the highest standards of quality. The optical industry relies on IOTA 704 for surface improvements and the creation of anti-reflective coatings, optical filters, and mirrors, enhancing the performance and durability of optical devices. Metallurgy benefits from its use in high-vacuum furnaces, where it aids in the melting, degassing, and sintering of refractory metals, as well as in thick-film deposition processes, contributing to the production of high-quality metals and alloys.