In the sophisticated world of chemical compounds, some molecules distinguish themselves through a unique combination of properties that unlock a wide range of industrial applications. Trimethylpentaphenyltrisiloxane, identified by its CAS number 3390-61-2, is one such compound. As a leading manufacturer and supplier of this organosilicon material, we aim to elucidate its key characteristics and the significant advantages it offers to various industries. If you are considering where to buy this versatile chemical, understanding its intrinsic value is the first step.

The molecular formula for Trimethylpentaphenyltrisiloxane is C33H34O2Si3, and its molecular weight is approximately 546.88 g/mol. Visually, it is often described as a colorless transparent or light yellow transparent liquid. However, its true value lies beneath its appearance. Its structure is a testament to meticulous molecular design, featuring a core siloxane backbone (Si-O-Si) adorned with bulky phenyl groups and smaller methyl groups. This architecture is responsible for its exceptional performance profile.

One of the most celebrated properties of Trimethylpentaphenyltrisiloxane is its remarkable thermal stability. With a boiling point of 560.2 °C at atmospheric pressure and a flash point of 238.3 °C, it can withstand substantial heat without decomposing or igniting. This makes it an invaluable component in high-temperature applications where materials are subjected to extreme thermal stress. Its solid form has a melting point of -25 °C, indicating it remains liquid over a broad temperature range, further enhancing its utility.

Oxidation resistance is another significant trait. This compound can maintain its integrity in environments where oxygen might otherwise cause degradation, ensuring longevity and consistent performance. The density of 1.09 g/cm³ and a refractive index of n20/D 1.58 are additional physical parameters that are important for specific applications, particularly in optical or precision fluid systems.

The applications of Trimethylpentaphenyltrisiloxane are diverse, reflecting its unique property set. As previously mentioned, it is highly regarded as a diffusion pump fluid in vacuum systems. Its low vapor pressure is crucial for achieving and maintaining ultra-high vacuum levels, essential in semiconductor manufacturing, scientific research, and analytical instrumentation. For procurement managers seeking reliable vacuum system components, engaging with a trusted supplier is paramount.

Beyond vacuum technology, this organosilicon compound serves as a high-performance lubricant and hydraulic fluid, particularly in situations demanding extreme temperature tolerance and chemical inertness. It also functions as a vital intermediate in the synthesis of other specialty organosilicon materials and polymers. By acting as a building block, it allows chemists to create tailored materials for advanced electronics, coatings, and composites. For companies looking to innovate and develop new product lines, understanding the value of this intermediate is key to their success. Requesting a quote from a reputable manufacturer for bulk quantities is a wise investment.

We invite you to consider Trimethylpentaphenyltrisiloxane for your critical applications. As a premier manufacturer, we ensure high purity (99%) and consistent quality, backed by competitive pricing and reliable supply. Explore the potential of this exceptional organosilicon compound by partnering with us. Contact us today to learn more and to purchase the materials that will drive your technological advancements.