Views: 2025 Author: Keystone Vessel (Wuhan) Publish Time: 2025-09-03 Origin: Keystone Vessel (Wuhan)
80 PCS Stainless Steel Electronical Grade Cylinders Delivery UN 2189 DCS High Purity Dichlorosilane Gas
High-purity Dichlorosilane Gas Cylinders
Electronic-grade High-purity Cylinders
KSC40L 240L，450L Cylinders
Operating Temperature：-40~65℃
Certification Medium：DCS、UN2189、UN2196……Electronic Specialty Gases
Optional Certificate：TS、UN、TPED、DOT
Work Pressure：2.2MPa
Helium Leak Detection Rate：≤1X10⁻⁹ pa.m³/s
Polishing Grade：EP,Ra0.07-0.25um
Product Description：Standard Operating Procedure is ASME Ⅷ Div.1 ISO 18172-1 IMDGCODE TSG23 GB/T 32566
Safety Specifications for High-Purity Dichlorosilane (SiH₂Cl₂)
High-Purity Dichlorosilane (chemical formula: SiH₂Cl₂) is an important electronic-grade silicon-containing chemical raw material, mainly used in high-tech fields such as semiconductors and photovoltaics for the preparation of high-purity silicon, epitaxial films and silicon-based materials. Its purity is usually required to be ≥99.999% (5N) or higher, and the content of impurities (such as metal ions, moisture, and other chlorosilane derivatives) must be strictly controlled below the ppm level. Due to its dangerous characteristics of flammability, toxicity, and corrosiveness, as well as its high chemical reactivity, strict compliance with professional safe operation and regulatory management requirements is essential. The following is a detailed explanation of its core information and key specifications:
I. Basic Identification Information
Item | Details |
English Name | High-Purity Dichlorosilane |
CAS Number | 4109-96-0 |
Chemical Formula | SiH₂Cl₂ |
Molecular Weight | 101.00 g/mol |
UN Number | UN 2189 |
Hazard Class | Class 2.3 Toxic Gas (primary hazard); Class 2.1 Flammable Gas (secondary hazard); Class 8 Corrosive Substance (secondary hazard) |
Typical Purity Indicators | ≥99.999% (5N), metal impurities (Na, K, Fe, Cu, etc.) ≤10 ppb, moisture ≤5 ppb, HCl ≤10 ppb, other chlorosilanes (SiHCl₃, SiCl₄) ≤500 ppb |
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