Description

Cyclopentasilane is a high-purity, inorganic ring compound consisting of five silicon atoms. This specialty silane is a critical precursor in advanced materials science, valued for its unique chemical structure and reactivity. It is essential for researchers and manufacturers in the semiconductor, photovoltaics, and nanotechnology sectors seeking to develop next-generation silicon-based thin films and nanomaterials.

Application

• Semiconductor Manufacturing: As a liquid silicon source for chemical vapor deposition (CVD) and atomic layer deposition (ALD) processes to create high-purity silicon or silicon carbide thin films.
• Photovoltaics: A key precursor for the production of amorphous silicon (a-Si) or nanocrystalline silicon (nc-Si) solar cells via solution-based or vapor-phase deposition.
• Polymer & Material Science: Serves as a building block for synthesizing novel polysilane polymers, silicon-based nanomaterials, and hybrid organic-inorganic composites.
• Nanotechnology: Used in the fabrication of silicon quantum dots, nanowires, and other nanostructures for optoelectronic and sensing applications.
• Research & Development: A fundamental reagent in organosilicon chemistry for studying ring-opening polymerization and developing new silicon-containing compounds.

Basic Information

Product Name	Cyclopentasilane
CAS No.	289-22-5
Molecular Formula	Si5H10
Molecular Weight	150.51 g/mol
Synonyms	Pentasilacyclopentane; Decahydropentasilepine; Cyclic Pentasilane; Perhydropentasilepine; Si5H10; 1,2,3,4,5-Pentasilapentane
EINECS	Contact for details

Quality Control

Our Cyclopentasilane is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity, essential for sensitive electronic applications. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles. Our quality system is designed to meet the stringent requirements of advanced materials research and high-tech manufacturing.

Storage

Preserve in a tightly closed container, protected from light. Due to its highly volatile, hygroscopic, and easily oxidized nature, this material must be stored under an inert atmosphere (argon or nitrogen) at recommended temperatures (e.g., 2-8°C or as specified). Keep away from heat, sparks, and open flame. Use only in a well-ventilated area or fume hood.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to reference spectrum
Assay (GC or NMR)	≥ 95.0%
Purity (Cyclopentasilane)	≥ 98.0% (by GC)
Moisture (KF)	≤ 0.1%
Chloride Content	≤ 50 ppm
Metal Impurities	≤ 10 ppm (total)

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