Description

Disiloxane, 1,3-Bis(1,1-Dimethylethyl)-1,1,3,3-Tetramethyl- is a highly versatile organosilicon compound, specifically a disiloxane derivative, valued for its role as a key intermediate and functional additive. Its molecular structure, featuring bulky tert-butyl groups, provides exceptional steric hindrance and thermal stability, making it crucial for advanced material synthesis. This chemical is primarily needed by manufacturers in the silicone polymer, specialty chemical, and pharmaceutical sectors for developing high-performance materials.

Application

• Silicone Polymer Modification: Acts as a chain extender, endblocker, or cross-linking agent to tailor the properties of silicone elastomers and resins, enhancing thermal stability and mechanical strength.
• Precursor for Silicone Coupling Agents: Serves as a fundamental building block in the synthesis of sophisticated silane coupling agents used to improve adhesion between organic polymers and inorganic surfaces.
• Pharmaceutical Intermediate: Utilized in the synthesis of active pharmaceutical ingredients (APIs) and other complex organic molecules where its silicon-based framework introduces specific functionality.
• Lubricant & Grease Formulation: Employed as a high-performance additive or base fluid in specialty lubricants requiring extreme temperature stability and low volatility.
• Surface Treatment & Coatings: Used to create hydrophobic or release surfaces on textiles, paper, and various substrates due to its organosilicon nature.
• Research & Development: Essential for academic and industrial R&D in organometallic chemistry and material science for creating novel silicon-containing compounds.

Basic Information

Product Name	Disiloxane, 1,3-Bis(1,1-Dimethylethyl)-1,1,3,3-Tetramethyl-
CAS No.	67875-55-2
Molecular Formula	C12H30OSi2
Molecular Weight	246.54 g/mol
Synonyms	1,3-Di-tert-butyl-1,1,3,3-tetramethyldisiloxane; Bis(tert-butyl)tetramethyldisiloxane; DTBDMS; tert-Butyltetramethyldisiloxane; Hexamethyldisiloxane, tert-butyl substituted; Disiloxane, tetramethyl-bis(1,1-dimethylethyl)-; Silicon ether derivative; TBDMS disiloxane
EINECS	Contact for details

Quality Control

Our Disiloxane, 1,3-Bis(1,1-Dimethylethyl)-1,1,3,3-Tetramethyl- is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing, including GC, NMR, and Karl Fischer titration, to ensure high purity and consistency that meets exacting customer and industry specifications. Comprehensive Certificates of Analysis (COA) documenting identity, purity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation by atmospheric moisture. Keep away from strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.1%
Refractive Index (n20D)	1.410 - 1.415
Density (20°C)	0.80 - 0.85 g/mL

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.