Dichloromethylsilane, scientifically known as methyldichlorosilane and identified by CAS number 75-54-7, is a colorless, volatile liquid that serves as a fundamental organosilicon intermediate. Its chemical structure, featuring a silicon atom bonded to one methyl group and two chlorine atoms, along with a hydrogen atom, imbues it with significant reactivity. This reactivity is the key to its broad utility in synthesizing a multitude of silicon-based materials and specialty chemicals. For professionals in chemical procurement and research, understanding its chemistry and applications is crucial.

Chemical Properties and Reactivity
Dichloromethylsilane is characterized by its high flammability and its pronounced sensitivity to moisture. Upon contact with water or even humid air, it undergoes hydrolysis, releasing hydrochloric acid (HCl) and forming siloxanes. This reaction is exothermic and can generate significant heat. The Si-H bond also contributes to its reactivity, allowing it to participate in hydrosilylation reactions and act as a reducing agent in certain contexts. Its physical properties include a low boiling point of approximately 41°C and a density greater than water, making it heavier than air. Safe handling necessitates a thorough understanding of these properties, especially its tendency to react vigorously with water and other protic solvents.

Primary Applications in Silicone Production
The most significant industrial application of Dichloromethylsilane is as a monomer in the production of silicone polymers, including silicone oils, resins, and rubbers. These materials are prized for their thermal stability, flexibility over a wide temperature range, electrical insulation properties, and water repellency. Industries such as automotive, construction, electronics, and textiles heavily depend on these silicones. Companies looking to secure a reliable supply for these applications will often seek a competitive price of Dichloromethylsilane from established manufacturers.

Role in Specialty Chemicals and Surface Modification
Beyond bulk silicone production, Dichloromethylsilane is a key intermediate for synthesizing specialty chemicals. It is used to create silane coupling agents, which improve the adhesion between organic polymers and inorganic substrates in composite materials. This enhances mechanical strength and durability in applications ranging from reinforced plastics to advanced coatings. Furthermore, it is utilized in surface modification processes to impart desirable properties like hydrophobicity or oleophobicity. For example, modifying the surface of glass or metal can improve its performance characteristics in demanding environments.

Sourcing and Safety Considerations
When you need to buy Dichloromethylsilane, choosing a reputable supplier is paramount. NINGBO INNO PHARMCHEM CO.,LTD., a leading Dichloromethylsilane manufacturer China, ensures high purity (often 99% or greater) and reliable supply chains. Understanding how to order Dichloromethylsilane safely involves reviewing the Safety Data Sheet (SDS) provided by the supplier and implementing strict protocols for hazardous chemical handling Dichloromethylsilane, including appropriate personal protective equipment (PPE) and ventilation.

In summary, Dichloromethylsilane (CAS 75-54-7) is a foundational organosilicon intermediate with a broad spectrum of applications. Its unique chemistry enables the creation of high-performance silicones and specialty chemicals essential for modern industry. By partnering with experienced suppliers like NINGBO INNO PHARMCHEM CO.,LTD., businesses can ensure they receive quality products and necessary safety guidance for their chemical needs.