Description

1,1,2,2-Tetramethyldisilane is a highly versatile organosilicon compound, primarily valued as a key precursor in advanced materials synthesis. Its unique disilane structure makes it an essential building block for creating silicon-based polymers and modifying surface properties. This chemical is critical for manufacturers and R&D facilities in the semiconductor, specialty polymer, and fine chemical industries seeking to develop innovative materials with tailored characteristics.

Application

• Semiconductor Manufacturing: Acts as a silicon source in chemical vapor deposition (CVD) and atomic layer deposition (ALD) processes for thin-film growth.
• Polymer Synthesis: Serves as a monomer or cross-linking agent in the production of polysilanes and other silicon-containing polymers.
• Surface Modification: Used to create hydrophobic or specific functional coatings on glass, metals, and other substrates.
• Organic Synthesis: Functions as a silylating agent or reducing agent in specialized organic transformations.
• Research & Development: A fundamental reagent for exploring new silicon chemistry and developing novel materials in academic and industrial labs.
• Photoresist Formulation: Employed in the development of advanced photoresists for microelectronics lithography.

Basic Information

Product Name	1,1,2,2-Tetramethyldisilane
CAS No.	814-98-2
Molecular Formula	C4H14Si2
Molecular Weight	118.33 g/mol
Synonyms	Tetramethyldisilane; 1,1,2,2-Tetramethyldisilane; Disilane, 1,1,2,2-tetramethyl-; Hexamethyldisilane (common misnomer, verify structure); TMDS; Tetramethyl disilanyl; Contact for additional trade names.
EINECS	212-398-5

Quality Control

Every batch of our 1,1,2,2-Tetramethyldisilane is produced and tested under stringent quality management protocols to ensure consistency and reliability for your critical processes. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as purity, identity, and impurity profiles. Our quality systems are designed to meet the exacting standards of the electronics and advanced materials industries.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile and easily oxidized nature, this product must be stored under an inert atmosphere (argon or nitrogen) in a cool, dry, and well-ventilated area. Recommended storage temperature is 2-8°C to minimize volatility and degradation. Keep away from heat, sparks, open flames, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC)	≥ 98.0%
Density (at 20°C)	0.70 - 0.75 g/mL
Boiling Point	Approx. 85-87°C

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