Description

Hexaethyl Disilazane is a versatile organosilicon compound, primarily valued as a highly effective silylating agent and a key precursor in advanced material synthesis. Its ability to introduce hexaethylsilyl groups makes it crucial for modifying surface properties and protecting reactive sites in complex chemical processes. This chemical is essential for manufacturers and R&D laboratories in the pharmaceutical, semiconductor, and specialty polymer industries seeking precise molecular control.

Application

• Surface Modification Agent: Used to hydrophobize and functionalize silica, glass, and other metal oxide surfaces for improved material compatibility.
• Semiconductor Manufacturing: Serves as a vapor-phase precursor for depositing silicon nitride (SiN) or silicon carbonitride (SiCN) thin films in chemical vapor deposition (CVD) and atomic layer deposition (ALD) processes.
• Pharmaceutical Intermediate: Acts as a protecting group for sensitive functional groups (e.g., alcohols, amines) during multi-step synthetic routes for active pharmaceutical ingredients (APIs).
• Silylation Reagent: Employed in gas chromatography (GC) and mass spectrometry (MS) to derivative polar compounds for enhanced volatility and detection.
• Polymer & Resin Catalyst/Modifier: Functions as a catalyst or cross-linking agent in the production of silicones, siloxanes, and other specialty polymers.
• Adhesion Promoter: Enhances the bonding interface between organic polymers and inorganic substrates in composite materials and coatings.

Basic Information

Product Name	Hexaethyl Disilazane
CAS No.	2117-18-2
Molecular Formula	C12H31NSi2
Molecular Weight	245.56 g/mol
Synonyms	1,1,1,3,3,3-Hexaethyl-2-azadisilane; Bis(triethylsilyl)amine; Hexaethyl-1,3-disilazane; N,N-Bis(triethylsilyl)amine; Triethylsilyl amine; N-(Triethylsilyl)-N-(triethylsilyl)amine; Disilazane, 1,1,1,3,3,3-hexaethyl-; BTSA
EINECS	218-310-9

Quality Control

Our Hexaethyl Disilazane is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including GC and NMR, to ensure high purity and consistency. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications. We support traceability and documentation for applications requiring GMP or ISO 9001 standards.

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 and highly volatile nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent moisture absorption and degradation. Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	Colorless to pale yellow clear liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (Karl Fischer)	≤ 0.1%
Density (20°C)	0.85 - 0.87 g/mL
Refractive Index (n20D)	1.430 - 1.435

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