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- 产品描述
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Silane USi-6127 – Methyldichlorosilane (MDCS)
Highly Reactive Chloro-Functional Intermediate for Methylsilicone Synthesis
CAS No.: 75-54-7
EINECS No.: 200-877-1
Chemical Name:
Methyldichlorosilane
Synonyms:
MDCSSilane USi-6127 is a high-purity methyldichlorosilane (MDCS)—a highly reactive chloro-functional organosilane featuring one methyl group and two chlorine atoms bonded to silicon. It serves as a critical building block in the production of methyl hydrogen silicone fluids, methyl vinyl silicone monomers, amino silanes, and other specialty organosilicon compounds. Due to its extreme sensitivity to moisture, it must be handled under strictly anhydrous and controlled conditions.
🧪 Product Description
Chemical Formula: CH₃SiHCl₂
Chemical Structure:
![Structure: CH₃–SiHCl₂]USi-6127 contains both a reactive Si–H bond and two hydrolytically unstable Si–Cl bonds, making it uniquely valuable in organosilicon synthesis:
- The Si–H functionality enables hydrosilylation reactions with unsaturated compounds (e.g., alkenes, alkynes)
- The Si–Cl groups readily undergo alcoholysis or hydrolysis, allowing conversion into methoxy, ethoxy, or silanol derivatives
- Acts as a key monomer in the production of methyl hydrogen polysiloxanes—essential crosslinkers and modifiers in RTV silicones, release coatings, and functional fluids
⚠️ Important: MDCS is highly reactive with water, releasing corrosive HCl gas, and is flammable and toxic. It is not intended for direct use as a coupling agent or surface treatment—but exclusively as a chemical intermediate.
📊 Typical Technical Data
The following values are typical and not intended for specification. Please confirm with our technical team before finalizing product requirements.
Parameter Specification Appearance Colorless transparent liquid Purity (GC, %) ≥ 99.0% Silicon Tetrachloride ≤ 0.050%
🏭 Key Applications
🔹 Production of Methyl Hydrogen Silicone Fluids
- Primary monomer for synthesizing (CH₃)(H)SiO-containing polysiloxanes
- These fluids serve as:
- Crosslinkers in addition-cure (Pt-catalyzed) silicone systems
- Adhesion promoters and surface modifiers
- Release agents and water repellents
🔹 Synthesis of Methyl Vinyl Silicone Monomers
- Used in co-hydrolysis/condensation with vinyltrichlorosilane to produce co-monomers for high-performance silicones with tailored cure profiles and mechanical properties
🔹 Intermediate for Amino & Other Functional Silanes
- Reacted with ammonia or amines to produce aminoalkyl methylchlorosilanes, which are further converted to commercial amino silanes (e.g., aminopropyl methyl dimethoxysilane)
🔹 Building Block for Specialty Silicone Compounds
- Enables precise control over Si–H content, functionality, and reactivity in custom silicone architectures for electronics, coatings, and medical applications
⚠️ Critical Safety & Handling Notes
- Extremely moisture-sensitive: Reacts violently with water, releasing hydrogen chloride (HCl) gas
- Flammable and toxic: Keep away from heat, sparks, open flame, and oxidizing agents
- Corrosive: Causes severe skin/eye burns and respiratory irritation
- Storage: In original sealed containers under dry, inert atmosphere (e.g., nitrogen), in a cool, dry, well-ventilated area, away from incompatible materials
- Shelf Life: Stable under proper conditions; consult SDS for detailed guidance
- PPE Required: Chemical-resistant gloves, goggles, face shield, fume hood, and acid gas respirator
- SDS Mandatory: Always review the latest Safety Data Sheet at www.usi-chemical.com or upon request before handling
📦 Packaging
Supplied in corrosion-resistant, moisture-tight industrial containers:
- Net 200 kg steel drum
All packaging is designed for safe transport and storage of reactive chlorosilanes.
📞 Contact Us
Nanjing Union Silicon Chemical Co., Ltd.
Trusted Supplier of High-Purity Chlorosilane Intermediates for Advanced Silicone Manufacturing- Headquarters:
Room 2002, Overseas Chinese Plaza, No.1 Daqiao North Road, Nanjing 210031, Jiangsu, P.R. China - Factory Address:
Dongcheng Guanli District, Gaizhou 115200, Liaoning, P.R. China - Tel: +86-25-5889 5266 / 5889 5699
- Fax: +86-25-5830 5349
- Website: www.usi-chemical.com
- Email: mikey@usichemical.com
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