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Silicon Tetrachloride (SiCl4) | High-Purity Semiconductor & Optical Precursor | CAS 10026-04-7
Overview
Silicon Tetrachloride (SiCl4) is a colorless, highly reactive, and strongly fuming liquid with a suffocating odor. As the absolute foundational precursor in modern silicon chemistry, it bridges traditional heavy industry with cutting-edge high-tech manufacturing. It is the critical raw material driving the global production of ultra-pure polysilicon, optical fiber preforms, and high-performance fumed silica.
Product Description
Silicon Tetrachloride (SiCl4) | High-Purity Precursor
Product Overview
Silicon Tetrachloride (SiCl4) is a colorless, highly reactive, and strongly fuming liquid. As the absolute foundational precursor in modern silicon chemistry, it bridges traditional heavy industry with cutting-edge high-tech manufacturing. It is the critical raw material driving the global production of ultra-pure polysilicon, optical fiber preforms, and high-performance fumed silica.
At Shandong Yinglang Chemical Co., Ltd., established in 2016, we supply massive volumes of Premium Silicon Tetrachloride to the world's leading semiconductor wafer fabricators and optical communications giants. Operating rigorously under Class 8 Dangerous Goods protocols, we ensure our SiCl4 is packaged under strict, moisture-free conditions to guarantee zero hydrolytic degradation and pristine reactivity.
Technical Specifications (COA)
For optical fibers and semiconductors, controlling trace transition metals is absolutely critical. Typical specifications for our High-Purity Grade:
| Purity (SiCl4) | ≥ 99.99% (4N) |
|---|---|
| Iron (Fe) | ≤ 1 ppm |
| Aluminum (Al) | ≤ 1 ppm |
| Carbon (C) | ≤ 50 ppm |
| Free Chlorine (Cl2) | ≤ 10 ppm |
Key Applications
- Polysilicon Synthesis: The primary precursor converted to trichlorosilane (TCS) or directly reduced to produce hyper-pure polycrystalline silicon for solar cells and semiconductor wafers.
- Optical Fiber Preforms: Used in OVD/VAD processes to synthesize the ultra-pure silica glass core and cladding of telecommunication optical fibers.
- Fumed Silica Production: Burned in a flame to produce Fumed Silica, a highly valuable nanoscale additive for premium silicones, adhesives, and coatings.
- Advanced Ceramics: Acts as a CVD precursor for manufacturing silicon nitride and silicon carbide structural components.
📡 Precision Purity for Optical Attenuation
In the manufacturing of optical fiber preforms, even single-digit parts-per-billion (ppb) levels of transition metals (like Iron or Chromium) or hydrogen-containing impurities can cause severe signal attenuation (light scattering). Yinglang Chemical’s 4N+ purity SiCl4 strictly eliminates these micro-contaminants, ensuring your optical fibers achieve maximum transmission distance and flawless signal clarity for 5G telecommunication networks.
Strict Anti-Corrosive DG Packaging
Because SiCl4 reacts violently with ambient moisture to form destructive acids, our packaging protocol ensures absolute safety during ocean transit:
- ISO TANKS (20 - 24 MT) (Highly recommended for polysilicon and fumed silica plants, completely purged with dry Nitrogen).
- 250 KG Heavy-duty UN-approved Steel Drums with specialized anti-corrosive linings.
⚠️ Safety & Transport Information (Class 8 DG)
- Transport Classification: Classified as Class 8 (Corrosive Substance).
- UN Number: UN 1818 | Packing Group: II
- Handling Precautions: EXTREME DANGER. Reacts violently with water to evolve highly corrosive HCl gas. Causes severe burns. Operators MUST wear full hazmat suits and SCBA. Handle strictly in a completely dry, inert environment.
Request a Bulk Quote for Silicon Tetrachloride
Contact us today for the latest FOB/CIF pricing, detailed COA, and specialized ISO Tank shipping estimates for your high-tech manufacturing facility.
Request a Bulk Quote Email Tech & Logistics Team
PACKING AND DELIVERY
Packing and delivery
We offer secure and compliant packaging for a wide range of chemical products, from laboratory bottles (100 mL, 250 mL, 500 mL) to customized bulk containers. All shipments follow international hazardous goods standards and include complete documentation such as COA and SDS. With reliable global logistics partners, we ensure safe, fast, and efficient delivery by air, sea, or land according to customer needs.
FAQ
Q1: What documents and certifications do you provide?
A Standard shipment includes COA (Certificate of Analysis) and MSDS (SDS). We also provide ISO 9001 certification and support third-party inspections like SGS or BV upon request.
Q2: Do you provide custom synthesis or formulation services?
A Yes. If you have specific purity requirements or a unique formulation, our R&D team can provide custom synthesis and adjust the stabilizers/inhibitors to meet your technical specifications.
Q3: What are your terms of payment?
A
For Orders ≤ $1,000: 100% in advance.
For Orders > $1,000: 30% T/T in advance, and the balance before shipment or against the copy of B/L. Irrevocable L/C at sight is also acceptable for bulk orders.
Q4: How long is your price valid?
A Chemical prices fluctuate due to the changes in raw material costs and exchange rates. Please contact our sales team for the latest real-time quotation.
Q5: What packaging and shipping ports are available?
A
We normally ship from Qingdao, Shanghai, or Ningbo.
Standard packaging includes 200kg Drums or 1000kg IBC Totes. We ensure strict safety compliance for both general and hazardous chemical cargoes.
Q6: It's my first time importing chemicals — can you help?
A Absolutely. Importing chemicals requires specific documentation. Our experienced logistics team will assist you with the entire process, including handling customs clearance documents and arranging the most suitable shipping method.