Cyclicdimethylpolysiloxane Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 69430-24-6 |
| Product name | Cyclicdimethylpolysiloxane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeElectronic GradeCosmetic GradeFood 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 Cyclicdimethylpolysiloxane
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Cyclicdimethylpolysiloxane Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Cyclicdimethylpolysiloxane
| Industry | Application | Process |
|---|---|---|
| Cosmetics | Lubricant and gloss agent in skincare, color cosmetics, and haircare products | Incorporated into formulation |
| Personal Care | Used in antiperspirants and sunscreens to provide smoothness and hydrophobicity | Emulsified or directly blended |
| Pharmaceuticals | Used as ointment base or medical device coating to enhance lubricity and biocompatibility | Compounded after high-temperature sterilization |
| Industrial Manufacturing | Antifoaming agent in wastewater treatment, oilfield operations, and chemical production | Added via spraying or mechanical agitation |
| Electronics | Used in electronic component encapsulation and insulating materials for high-temperature resistance and moisture protection | Injection molding or coating |
| Textiles | Fabric softener and water-repellent agent to improve hand feel | Padding or spray application |
Manufacturing Quality Control of Cyclicdimethylpolysiloxane
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Place the sample in a transparent container and observe its color, transparency, and presence of impurities under natural light or standard lighting. Typically appears as a colorless, transparent liquid. |
| Colorimetry | Platinum-Cobalt Colorimetric Method (GB/T 3143 or ASTM D1209) | Use standardized platinum-cobalt solutions for comparison to determine the color value, assessing purity and oxidation level. Lower values indicate higher product purity. |
| Cyclic Siloxane Composition (D4, D5, D6, etc.) | Gas Chromatography (GC) | Utilize capillary gas chromatography to identify components by retention time and quantify them by peak area. Commonly used to analyze the proportions of D4, D5, D6, and other cyclic siloxanes. |
| Volatility Content | Gas Chromatography (GC) or Thermogravimetric Analysis (TGA) | GC accurately measures volatile cyclic siloxanes (e.g., D5); TGA calculates total volatility based on weight loss during heating, suitable for preliminary assessment. |
| Refractive Index | Refractometry (ASTM D1218) | Determine refractive index at a specified temperature (typically 25°C) using an Abbe refractometer, used to assess purity and consistency. |
| Density | Pycnometer Method or Vibrating Tube Densitometry (ASTM D4052) | Measure mass per unit volume for quality control and compositional verification; sensitive to differences among homologous compounds. |
| Viscosity | Rotational Viscometry (ASTM D2196) | Measure fluid resistance to flow under constant temperature conditions, reflecting molecular weight distribution and fluidity; commonly used for industrial-grade product control. |
| Moisture Content | Karl Fischer Titration (Karl Fischer, GB/T 6283) | Quantify trace moisture through the reaction between iodine and sulfur dioxide in anhydrous environment; high sensitivity and accuracy. |
| Acid Value / Base Value | Acid-Base Titration (ASTM D974) | Titrate acidic components in the sample with standardized base solution (e.g., KOH), assessing storage stability and potential byproduct formation. |
| Volatile Organic Compounds (VOC) | Gas Chromatography-Mass Spectrometry (GC-MS) | Identify and quantify residual solvents or low-boiling-point impurities; especially useful for safety and environmental compliance testing. |
| Impurities and Isomers | Gas Chromatography-Mass Spectrometry (GC-MS) or Nuclear Magnetic Resonance (NMR) | GC-MS can detect unknown impurities; NMR (particularly ¹³C or ¹H NMR) is used for structural confirmation and analysis of trace isomers. |
| Thermal Stability | Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) | TGA determines decomposition temperature; DSC analyzes phase transitions and oxidation onset temperature, evaluating stability under high-temperature applications. |
Technical Specifications of Cyclicdimethylpolysiloxane
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.400–1.405 |
| Relative Density (20°C/25°C) | 0.965–0.975 g/cm³ |
| Acid Value (mg KOH/g) | <=0.1 |
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 Cyclicdimethylpolysiloxane
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| Lot/Batch Number | *Required fields | |
Packaging of Cyclicdimethylpolysiloxane
Industrial Cyclicdimethylpolysiloxane 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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