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HS Code |
209289 |
| Cas Number | 17852-52-7 |
| Molecular Formula | C7H15Cl2Si |
| Molecular Weight | 199.18 g/mol |
| Appearance | Colorless to pale yellow liquid |
| Boiling Point | 213-215 °C |
| Density | 1.101 g/mL at 25 °C |
| Refractive Index | 1.478 at 20 °C |
| Flash Point | 86 °C (closed cup) |
| Purity | Typically ≥97% |
| Solubility | Reacts with water |
As an accredited Methylcyclohexyldichlorosilane factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | A 500 mL amber glass bottle with a secure screw cap, labeled as "Methylcyclohexyldichlorosilane, hazardous, moisture sensitive, handle with care." |
| Shipping | Methylcyclohexyldichlorosilane must be shipped in tightly sealed, corrosion-resistant containers, kept dry and away from moisture, heat, and incompatible substances such as strong oxidizers. It should be labeled as a hazardous material and transported according to local, national, and international regulations for toxic, corrosive chemicals. Proper ventilation and spill containment are essential. |
| Storage | Methylcyclohexyldichlorosilane should be stored in a tightly sealed container, in a cool, dry, well-ventilated area, away from moisture, heat, and sources of ignition. Store separately from acids, bases, oxidizers, and water to prevent hazardous reactions. Use corrosion-resistant containers and ensure proper labeling. Protect from physical damage, and handle only with appropriate personal protective equipment in a chemical fume hood. |
Applications of Methylcyclohexyldichlorosilane in Industrial ManufacturingMethylcyclohexyldichlorosilane serves as a specialized organosilicon intermediate across advanced polymer, silicone, and electronics supply chains. Drawing on our longstanding manufacturing expertise, we supply this material to critical segments where precise formulation and strict process integration are required to obtain application-specific properties in performance end-products. Below we outline principal industrial use-cases, providing concrete formulation, compliance, and processing data for each. 1. Advanced Silicone Rubber Compounding for Automotive ComponentsSilicone rubber formulators select methylcyclohexyldichlorosilane as a precision co-monomer to modify polymer backbone structure, imparting improved compression set resistance and enhanced thermal aging for engine gasket and under-hood seals. Chemists dose the compound during the initial siloxane synthesis step to achieve target vinyl and methyl content, which determines final elastomer flexibility and durability in demanding environments. Industry compliance standards
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2. Electronic Grade Silicone Encapsulants and Potting ResinsMicroelectronics manufacturers rely on methylcyclohexyldichlorosilane as a structural modifier within low-volatility silicone gel formulations used for encapsulation of sensitive circuit boards and semiconductors. By introducing specific cyclic group content, formulators achieve precise dielectric properties and moisture barrier levels required for high-reliability electronics operating in harsh environments. Industry compliance standards
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3. Surface Treatment Intermediate for Functionalized Glass Fiber SizingManufacturers of high-performance fiberglass use methylcyclohexyldichlorosilane to design organosilicon coupling agents that improve resin-to-glass adhesion and water resistance. The material enables formation of a stable silane film on filament surfaces, crucial for composite production in wind turbine blades and aerospace panels where interfacial bonding determines strength and fatigue life. Industry compliance standards
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4. Custom Silazane Precursor Synthesis for High-Temperature CeramicsProducers of ceramic polymer precursors use methylcyclohexyldichlorosilane to generate tailored silazane intermediates, controlling nitrogen and silicon content for subsequent pyrolysis into dense, high-strength ceramic matrices. This allows precise tuning of ceramic microstructures for thermal barrier coatings and specialty insulators, especially under extreme processing conditions. Industry compliance standards
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5. Hydrophobic Surface Modifier for Architectural SealantsSealant compound manufacturers apply methylcyclohexyldichlorosilane to formulate moisture-resistant silicone sealant systems for building facades, joint fillers, and structural glazing. The molecule’s unique cyclohexyl group modifies the polymer chain, imparting durable hydrophobicity and improved resistance to environmental weathering, UV degradation, and biological fouling, crucial for long-term outdoor exposure. Industry compliance standards
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6. Optical-Grade Polymer Modifier for LED Device LensesIn optoelectronic fabrication, compounders adopt methylcyclohexyldichlorosilane as a specialty modifier in silicone-based resins and gels for LED secondary optics. Its inclusion enables high transmittance, improved resistance to yellowing, and retention of refractive index stability under high flux operation. Process engineers precisely adjust input levels to balance crosslink density, clarity, and mechanical toughness required for advanced lighting components. Industry compliance standards
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Over the last several decades in chemical manufacturing, we have seen the baseline for organosilicon intermediates shift as new electronics, coatings, and polymer technologies push the boundaries of what a dichlorosilane can deliver. Our Methylcyclohexyldichlorosilane brings something more than a sum of molecular parts: it combines a cyclohexyl backbone with methyl and dichlorosilane functionalities, creating a versatile intermediate with targeted advantages. Manufacturers who process silicone rubbers, specialty polymers, and advanced optical materials have come to rely not only on its purity but on predictable performance, time and again, no matter the scale or complexity of the end application.
We have invested years refining the handling and synthesis of organosilicon compounds. Early on, we noticed subtle challenges in achieving batch-to-batch consistency with dichlorosilanes that included bulky cyclic substituents. Impurities—even at low levels—can drive dramatic changes in reactivity during downstream processes like hydrosilylation or crosslinking. By tuning our distillation sequence and selecting robust feedstocks, we keep our Methylcyclohexyldichlorosilane above industry benchmark purity, controlling trace chlorinated byproducts and minimizing the risk of side reactions. This attention to detail stems from years shoulder-to-shoulder with process chemists, reacting to customer feedback, and troubleshooting at the plant floor level. Our model specifications reflect practical knowledge, not just the lowest numbers on a spec sheet.
We produce Methylcyclohexyldichlorosilane mainly in liquid form with minimal coloration and visible settling. Its chemical formula—C7H14Cl2Si—results in an organosilicon molecule that stands up to the rigors of both lab-scale and bulk processing. Material typically ships with controlled water content, a narrow range of acid impurity, and tight isomeric distribution, all verified through direct-witness GC and moisture analysis. We do not chase theoretical purity at the expense of process stability; after hundreds of feedback loops from customers in Asia, North America, and Europe, our material’s nominal purity and physical parameters reliably support kilogram-to-multiton scale runs in production lines tuned for high throughput and low downtime.
The choice of packaging stems from hard experience: steel drums, fluoropolymer-lined interiors, and secondary containment pallets have reduced material loss from handling incidents, especially in regions with extreme temperatures or extended transport. Moisture exclusion remains critical for dichlorosilanes, and our sealed drum-washer protocol hits industry best practices, translating directly to fewer viscosity jumps and fewer pressure spikes during unloading. These details matter far beyond a datasheet—they reflect a lived commitment to safer, more efficient manufacturing.
Methylcyclohexyldichlorosilane consistently finds a place where both the cyclohexyl ring and dichlorosilane reactivity accelerate high-value synthesis. Producers rely on its controlled reactivity profile to make elastomer precursors, strengthen siloxane crosslinks, and generate surfaces with tailored hydrophobic properties. Some of the largest advances in silicone rubber design—greater flexibility at low temperature, better dielectric stress resistance—link directly to material selections in the dichlorosilane monomer stage. We have worked alongside compounders who use our-grade Methylcyclohexyldichlorosilane to fine-tune their polymer backbones, discovering that even small changes in ring size and substituent pattern drive large shifts in electrical, optical, and mechanical behavior.
In optical and coating applications, where precision surface modification counts for more than brute volume, users leverage the controlled hydrolysis of our Methylcyclohexyldichlorosilane to create dense, functional siloxane layers on quartz, metal, or glass. The difference shows up in fewer coating failures, longer device lifespans, and reduced rework. Our technical support teams have helped dozens of facilities integrate the compound into their silanization protocols, watching firsthand how a robust input chemical can simplify waste disposal steps, cut silanol byproducts, and eliminate most of the trial-and-error required with legacy dichlorosilanes.
Choosing one dichlorosilane over another means weighing more than reactivity or price. Over the years, we have compared our Methylcyclohexyldichlorosilane to phenyl, vinyl, and straight-chain analogs. Several unexpected distinctions stand out. The cyclic backbone brings steric bulk, dampening the rate of hydrolysis relative to linear aliphatic silanes. This gives operators a longer working window during silanization steps and helps reduce side product formation. Lower vapor pressure compared to lighter dichlorosilanes leads to less workplace exposure risk and a more predictable rate of release during controlled addition. We noticed from field feedback that reactions run with our compound release lower chlorosilane fumes, cutting corrosion in fume hoods and vent lines, and reducing the need for expensive air handling retrofits.
In polymerization, substituting our Methylcyclohexyldichlorosilane for less hindered dichlorosilanes gives rise to silicone elastomers with improved resilience—especially after repeated thermal cycles. The cyclohexyl group imparts added flexural strength and maintains a softer durometer at subzero conditions. Compounders who previously fought cracking or delamination at low temperatures now report smoother yields and longer part lifespans. Electrical insulation manufacturers realized that the same structural modification led to improved breakdown strength in high-voltage environments, one of several serendipitous discoveries that underlines the compound’s broader impact.
Decades storing and shipping organochlorosilanes have fostered a cautious respect for their moisture reactivity and tendency to fume. Achieving safe, stable logistics demands real knowledge and dedicated infrastructure. Not every chemical producer builds out specialized unloading ramps or invests in closed-loop drum transfer systems. We learned early that the few percent reduction in shelf-life or batch variability from poor handling quickly leads to customer frustration, emergency maintenance, and process slowdowns on the client side. By maintaining a controlled nitrogen blanket and using reinforced drum seals, we virtually eliminate water ingress, preserving the chemical integrity from plant to point-of-use.
Plant-level training is also essential. Every operator familiar with organic chlorosilanes knows the sting and sweat of a fume event. Our in-house safety protocols emphasize preloading ventilation, real-time leak detection, and staged pressurization during transfer. Each batch moves with security tags and tracking, allowing for full chain-of-custody audits—a practice we formalized after several distribution chain incidents traced back to non-dedicated logistics. These investments pay back in strong relationships with manufacturers who prioritize on-time, incident-free supply above the cheapest possible procurement.
Unlike many commodity organosilanes where purity drifts within a permissive window, specialty performance depends on certainty at every stage: gas chromatography, Karl Fischer titration, and elemental analysis, all documented and double-checked. We run offline and inline GC on every production lot, watching for trace chlorinated or cyclic contaminants that my disrupt process conditions or end-use properties. Our engineering staff works closely with production teams to tune reactor conditions, such as temperature and catalyst control, aiming for high yield without stepping outside the target impurity envelope.
Sampling goes beyond batch start and endpoint tracking. We pull in-process samples at every column handoff, catching unexpected boil-ups or condensation fouls before they cascade into an entire lot. Customer audits sometimes ride alongside these checks, and we open our analytics suite for side-by-side confirmation, building trust and ensuring consistency—batch after batch, year after year.
Feedback drives much of our process refinement. Polymer producers, used to fighting with uneven feedstock supplies, see cascading benefits from a consistent Methylcyclohexyldichlorosilane supply: fewer off-spec lots, less downtime due to filtration blockages, and smoother scale-up from pilot to commercial runs. In two documented cases, a leading elastomer manufacturer shifted to our material, cutting reblend rates and solvent washouts in half. That shift freed up over 10% of their reactor time—a figure worth magnitudes when running at multiton scale.
Coatings companies, which monitor adhesion and clarity with tight margins, have reported a decrease in haze incidents and surface micro-defects when using our grade. These concrete improvements, combined with direct-from-manufacturer accountability, reinforce our belief in hands-on stewardship. Rather than waiting for backline distributor reports to flag an issue, we talk frankly with downstream users about what is working—and what needs improvement.
Global regulatory standards for chlorosilane intermediates have grown sharper, especially surrounding workplace exposure, environmental release, and permissible impurity levels. Our team keeps up not only with shifting compliance in our home country but with evolving frameworks in Europe and East Asia. Production lines feature environmental controls, leak capture, and solvent cycling well above regional minimums, both to meet regulations and to back our commitment to responsible stewardship.
Long experience has shown us that compliance built as an afterthought never lasts. In our operations, on-site EH&S personnel participate in every process change, audit, and root-cause investigation. Waste chlorinated streams move through dedicated neutralization and abatement set-ups. These steps show up in the form of lower emissions from our stack, reduced odor in nearby communities, and operational transparency that appeals to both employees and customers. The growing focus on sustainability in chemical production drives us to make further improvements, both large and small, from water economizers on-site to ongoing research into next-generation closed-loop synthesis protocols for future batches of Methylcyclohexyldichlorosilane.
Every chemical producer faces sticking points: raw material volatility, logistics interruptions, or runaway reactivity during plant operations. Our history with Methylcyclohexyldichlorosilane includes dealing directly with all three. On the raw material front, maintaining multiple approved sources for key cyclohexyl components lets us sidestep the painful price whipsaws that can bring lines down elsewhere. On the logistics side, we have built deep partnerships with shippers who know how to handle regulated, reactive intermediates—no handoffs to unqualified subcontractors, no shortcutting on temperature or humidity conditions in transit.
Inside the plant, process hazard analysis teams stay on hand for any scale-up or change in production parameters. By running smaller pilot batches before scaling to campaign production, we uncover unanticipated heat or fume evolution on a manageable scale, working with downstream users and safety staff to tweak protocols as needed. These continuous tweaks mean the quality, safety, and predictability of each drum or container makes it from our warehouse to your process with minimal incident and maximal value.
Our approach to producing and supplying Methylcyclohexyldichlorosilane borrows from old-fashioned reliability and modern scientific rigor. By keeping lines of communication open between plant, technical support, and the customer’s own production staff, we spot issues early, solve collaboratively, and drive tangible improvements—greater yield, smoother processing, fewer delays, and safer working conditions. These are the outcomes that create loyalty with manufacturing partners and let us refine the product’s strengths while addressing any weaknesses in real time.
We see every ton of Methylcyclohexyldichlorosilane shipped as a promise: the rigor applied in its making goes all the way from the chemistry bench to your process. That is how we continue to build trust and drive forward, one batch after another.