China Factory Direct
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| CAS number | 137407-65-9 |
| Product name | 1,1,3,3-Tetramethyl-1-[2'-(Trimethoxysilyl)Ethyl]-Disiloxane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic GradeCosmetic GradeFood Grade |
| Packaging | 25KG/bag |
| 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
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| Coatings & Inks | Used as a hydrophobizing agent to enhance water resistance and weatherability of coatings | Incorporated into coating or ink formulations to leverage its surfactant properties and improve the final product’s water repellency |
| Construction Materials | Applied as a waterproofing treatment for concrete, stone, and other construction materials | Applied via spraying or immersion to form a protective surface layer that reduces water penetration |
| Electronics Industry | Used in encapsulation materials to provide effective electrical insulation and moisture protection | Incorporated into polymer matrices during semiconductor device manufacturing to enhance electrical performance and environmental stability |
| Textile Treatment | Enhances fiber water repellency and soil resistance | Applied to textiles via padding, spraying, or similar methods to form a durable protective layer |
| Cosmetics | Added as an ingredient to improve product slip and spreadability | Added during the emulsification stage of cosmetic formulation to optimize texture and user experience |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantifies main component peak area relative to calibration curve using internal or external standard. |
| Residual Solvents | Headspace Gas Chromatography (HS-GC) | Volatiles are equilibrated in headspace vial and quantified by GC-FID against certified standards. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine generated proportionally to water content in sample. |
| Acid Number | Acid-Base Titration with Potentiometric Endpoint | Neutralization of acidic impurities using standardized KOH solution; endpoint detected by pH change. |
| Viscosity | Capillary Viscometry at 25 C | Measures flow time of fixed volume through calibrated capillary tube under gravity; converted to kinematic viscosity. |
| Density | Digital Density Meter (Oscillating U-tube) | Determines density from resonant frequency shift of vibrating U-shaped tube filled with sample. |
| Refractive Index | Refractometry at 20 C | Measures angle of light refraction at air-sample interface using Abbe refractometer or digital equivalent. |
| Color (APHA) | Visual Comparison or Spectrophotometric APHA | Compares sample color to platinum-cobalt standard scale using spectrophotometer at 430 nm or visual comparator. |
| Silicon Content | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Atomizes and excites sample in plasma; silicon quantified via characteristic emission line intensity. |
| Chloride Impurity | Ion Chromatography (IC) with Conductivity Detection | Separates anions on ion-exchange column; chloride detected by conductivity change post-suppression. |
| Volatile Matter | Thermogravimetric Analysis (TGA) at 150 C for 30 min | Measures mass loss upon heating under inert atmosphere to determine non-volatile residue. |
| pH of Aqueous Extract | Potentiometric pH Measurement | Sample is extracted with water, and pH of extract is measured using calibrated glass electrode. |
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.415–1.425 |
| Relative Density (20°C/25°C) | 0.920–0.940 g/cm³ |
| Odor | Characteristic mild odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.