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In the world of high vacuum technology, the quality of pump oil can make a significant difference in the performance and longevity of an entire vacuum system. IOTA 704, manufactured under the well-known IOTA brand, is a high vacuum diffusion pump oil designed to deliver consistent and dependable results across a wide range of demanding applications. From scientific research to industrial manufacturing, IOTA 704 has earned a strong reputation among professionals who require reliable vacuum performance every day.
IOTA 704 is a colorless or transparent liquid, which allows users to easily assess its cleanliness during operation. This visual clarity is not just about aesthetics — it also serves as a practical indicator of the oil's purity and condition. The product maintains a stable liquid state across a broad temperature range, with a freezing point of -35°C. This means that even in cold storage conditions, the oil remains fluid and ready for use without any pre-heating or special handling.
Let us take a closer look at the technical parameters that define IOTA 704's performance. The kinematic viscosity at 25°C is 38±3 cst, a value that has been carefully engineered to ensure smooth circulation within the diffusion pump while maintaining effective vapor diffusion. The refractive index at 25°C falls within the range of 1.5500 to 1.5600, and the relative density at the same temperature is between 1.06 and 1.07. These figures reflect the precision of the formulation and the consistency of the product batch after batch.
The open cup flash point is ≥210°C, which demonstrates the oil's strong thermal stability. This is a critical safety feature, especially in environments where the pump may be exposed to elevated temperatures during extended operation. The vacuum level achievable with IOTA 704 is less than 10⁻⁷ to 10⁻⁸ Pa, and the saturated vapor pressure is below 2×10⁻⁸ Pa. These two figures are particularly important because they indicate how little the oil itself will contribute to the background pressure inside a high vacuum chamber. In practical terms, this means cleaner vacuum conditions and more reliable experimental or production outcomes.
IOTA 704 serves a diverse set of industries. In the high vacuum metallurgy sector, it provides the stable vacuum environment needed for metal purification and special alloy smelting. In the electron tube and lamp manufacturing industries, it helps achieve the high vacuum sealing required inside the tubes. For high vacuum coating and thin film deposition processes, it ensures a clean and uniform vacuum atmosphere. In the fields of atomic energy accelerators and electron microscopes, it supports the operation of sophisticated scientific instruments. And in display manufacturing, it plays a vital role in maintaining the vacuum conditions necessary for high-quality production. The common thread across all these applications is the need for a dependable vacuum, and IOTA 704 consistently delivers.
Understanding that different users have different requirements, IOTA 704 is available in several packaging sizes. The 1 kg plastic bottle is ideal for small-scale testing or laboratory use. The 5 kg, 25 kg, and 50 kg plastic buckets cater to medium-scale production facilities. For users with high-volume demands, the 200 kg iron drum offers a cost-effective solution. This range of packaging options ensures that whether you are a researcher running a single experiment or a factory running continuous production, there is a suitable size for you.
For optimal preservation, the product should be stored in a dry, moisture-free warehouse away from direct sunlight. The acceptable storage temperature ranges from -40°C to 50°C, giving users flexibility in how and where they keep their supply. IOTA 704 is classified and transported as a non-dangerous good, which simplifies logistics and reduces shipping costs. With a shelf life of 3 years, users can purchase in confidence, knowing they have ample time to use the product before it reaches its expiration date. The IOTA brand stands behind every bottle of IOTA 704, committed to providing quality and reliability that professionals can count on.
