Tetramethyldiphenyltrisiloxane, commonly known in the industry as phenyl hydrogen-containing double-ended compound, product code IOTA 232, CAS number 17875-55-7, is a high-performance specialty siloxane fine chemical raw material. Due to its unique molecular structure, it has become a key additive in the field of silicon material modification. Its molecular formula is C₁₆H₂₄O₂Si₃. In its pure state, it is a colorless and transparent liquid with stable physicochemical properties, suitable for various industrial production scenarios.
In terms of core physicochemical indicators, this product exhibits excellent comprehensive performance. At 20℃, its refractive index reaches 1.500, its specific gravity is 0.994, its viscosity is moderate, and its flowability is good, facilitating mixing and processing. Its boiling point is 130-131°C (2.5 mmHg), and its flash point is above 110℃, indicating a high safety factor and making it non-flammable and non-explosive during storage and production. The product boasts a gas-phase purity exceeding 98% and extremely low impurity content, effectively ensuring the quality stability of downstream products.
The product's greatest core advantage lies in its exceptional compatibility. It is perfectly compatible with mainstream silicon-based materials such as methyl silicone oil, liquid silicone rubber, phenyl silicone rubber, and phenyl silicone resin, resolving many industry challenges related to poor compatibility and delamination failure between additives and substrates. Furthermore, the active hydrogen structures at both ends of the molecule endow it with excellent reactivity, allowing it to participate in cross-linking reactions without complex processes. With its stability, safety, and wide adaptability, it is widely used in the modification and processing of various silicon-based materials, making it an indispensable basic raw material in the field of fine silicon chemicals.