bis(dimethylsilyloxy)-dimethylsilane Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 70900-21-9 |
| Product name | bis(dimethylsilyloxy)-dimethylsilane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeMaterial GradeElectronic Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for bis(dimethylsilyloxy)-dimethylsilane
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk bis(dimethylsilyloxy)-dimethylsilane Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of bis(dimethylsilyloxy)-dimethylsilane
| Industry | Application | Process |
|---|---|---|
| Chemicals | Used as a crosslinker or capping agent for organosilicon materials such as silicone rubber and silicone oil | Introduces reactive hydrogen groups into polymerization reactions to participate in addition reactions (e.g., hydrosilylation with vinyl siloxanes under platinum catalysis), thereby controlling molecular weight and end-group functionality |
| Coatings & Paints | Improves coating adhesion, weather resistance, and surface properties | Acts as a functional additive in curing reactions to form a crosslinked network structure |
| Adhesives & Sealants | Provides crosslinking sites to enhance cohesive strength and elasticity | Forms a three-dimensional network via addition-cure vulcanization with unsaturated components (e.g., vinyl siloxanes) |
| Electronic Encapsulation | Regulates rheology and cure characteristics in encapsulation materials | Functions as a reactive diluent or crosslinking component, participating in the curing process upon heating and in the presence of a catalyst |
| Textile Finishing | Imparts softness, water repellency, and wrinkle resistance to fabrics | Forms an organosilicon film on fiber surfaces through impregnation or coating processes; functional finishing is achieved after curing |
Manufacturing Quality Control of bis(dimethylsilyloxy)-dimethylsilane
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Viscosity | Capillary Viscometry (ASTM D445) | Measures kinematic viscosity by timing the flow of a fixed volume through a calibrated capillary tube under gravity. |
| Refractive Index | Refractive Index Measurement (ASTM D1218) | Determines refractive index using a precision refractometer based on Snell’s law and total internal reflection. |
| Acid Value | Potentiometric Titration with KOH in isopropanol | Quantifies acidic impurities by titration with standardized potassium hydroxide solution, detecting endpoint via pH electrode. |
| Hydroxyl Content | Acetic Anhydride Pyridine Acetylation followed by Titration (ASTM D4294 modified) | Derivatizes silanol groups with acetic anhydride; excess anhydride hydrolyzed and back-titrated to determine OH concentration. |
| Volatiles Content | Thermogravimetric Analysis (TGA) or Loss on Drying (LOD, ASTM E1868) | Measures mass loss upon controlled heating to quantify volatile components and residual solvents. |
| Silicon Content | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Quantifies total silicon after acid digestion by measuring characteristic Si emission lines at 251.61 nm or 288.16 nm. |
| Chloride Ion Content | Ion Chromatography (IC) with Conductivity Detection (ASTM D4327) | Separates and quantifies chloride ions using anion-exchange column and suppressed conductivity detection. |
| Molecular Weight Distribution | Gel Permeation Chromatography (GPC/SEC) with Refractive Index Detection | Determines Mn, Mw, and PDI by separating polymer chains by hydrodynamic volume using calibrated polystyrene standards. |
| Appearance & Color | Visual Inspection and APHA Color Scale (ASTM D1209) | Assesses clarity and yellowness by comparing sample against platinum-cobalt standard solutions under controlled lighting. |
| Water Content | Karl Fischer Coulometric Titration (ASTM D6304) | Electrochemically quantifies trace water via iodine generation and stoichiometric reaction with water in anhydrous methanol/pyridine medium. |
Technical Specifications of bis(dimethylsilyloxy)-dimethylsilane
| Test Item | Specification |
|---|---|
| Appearance | Clear, colorless liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.400–1.415 |
| Relative Density (20°C/25°C) | 0.95–0.98 g/cm³ |
| Acid Value (mg KOH/g) | <=0.5 |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of bis(dimethylsilyloxy)-dimethylsilane
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of bis(dimethylsilyloxy)-dimethylsilane
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of bis(dimethylsilyloxy)-dimethylsilane
Industrial bis(dimethylsilyloxy)-dimethylsilane Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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