For chemists, researchers, and product formulators, a deep understanding of a chemical's technical specifications is crucial for its effective and successful application. 1,3-Bis(4-hydroxybutyl)tetramethyldisiloxane (CAS 5931-17-9) is an organosilicon compound with unique properties that make it valuable across various industries. As a dedicated manufacturer and supplier of chemical intermediates, we believe in empowering our clients with comprehensive product knowledge. If you're looking to buy this compound, understanding its technical profile will guide your R&D and procurement decisions.

Decoding the Molecular Profile: Key Properties
1,3-Bis(4-hydroxybutyl)tetramethyldisiloxane is a clear to straw-colored liquid with a molecular formula of C12H30O3Si2 and a molecular weight of approximately 278.54 g/mol. Its defining structural features are the tetramethyldisiloxane backbone and the two terminal primary hydroxyl (-OH) groups. These hydroxyl groups are the primary sites of reactivity, enabling its use in various synthetic and formulation applications.

Essential Technical Specifications for Buyers:

  • Purity: This is arguably the most critical specification. For applications in advanced synthesis or high-performance materials, a high purity level (often 96% or higher, as reported by GC analysis) is essential. Lower purity may contain side products or unreacted starting materials, which can negatively impact reaction yields or final product performance. We ensure our product meets stringent purity standards.
  • Appearance: The typical appearance is described as a clear, colorless to light yellow liquid. Any significant deviation from this could indicate impurities or degradation, warranting further investigation with the supplier.
  • Boiling Point: With a boiling point often cited around 306.2 °C at atmospheric pressure, or more practically, around 148-150 °C at lower pressures (e.g., 2 mmHg), this indicates its relative stability at moderate processing temperatures. This parameter is important for distillation and purification processes.
  • Density and Refractive Index: Density figures, often around 0.93-0.94 g/mL, and refractive index values (e.g., 1.4526 @ 20°C) are important physical constants that can be used for material identification and quality control checks.
  • Solubility: While specific solubility data can vary, organosilicon compounds like this tend to be soluble in many organic solvents, facilitating their use in organic synthesis and formulations.
  • Reactivity: The primary hydroxyl groups are reactive towards isocyanates, epoxides, acid chlorides, and other electrophilic reagents. This reactivity is key to its function as a cross-linker or modifier in polymer systems.

Leveraging Specifications for Optimal Application:
Understanding these technical details allows R&D scientists to select the appropriate reaction conditions, solvents, and co-reactants for successful synthesis. For formulators, it helps in predicting compatibility with other ingredients and the expected performance characteristics in their final products. For procurement managers, these specifications serve as benchmarks for quality assessment when evaluating suppliers and requesting quotes. As a reliable manufacturer, we provide comprehensive product documentation to support your technical requirements.

By thoroughly examining the technical specifications of 1,3-Bis(4-hydroxybutyl)tetramethyldisiloxane, you can make informed decisions, ensuring you buy a product that perfectly matches your application's demands. Partnering with a knowledgeable chemical supplier like us can greatly aid in this process.