POLYDIMETHYLSILOXANE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 8050-81-5 |
| Product name | POLYDIMETHYLSILOXANE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Food GradeCosmetic Grade |
| Packaging | 25KG/bag500KG/bag1000KG/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) |
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Documents We Provide for POLYDIMETHYLSILOXANE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk POLYDIMETHYLSILOXANE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of POLYDIMETHYLSILOXANE
| Industry | Application | Processing |
|---|---|---|
| Pharmaceuticals | Antifoaming agent for relieving gastrointestinal flatulence, abdominal discomfort, and bowel preparation prior to endoscopy | Used as an excipient in oral liquid formulations, tablets, or capsules; incorporated directly into the formulation |
| Food | Antifoaming agent (approved in certain countries/regions) to prevent foam formation during fermentation or processing | Added during food processing of fermented beverages, syrups, etc., within limits specified by GB 2760 or FDA 21 CFR 172.878 |
| Cosmetics | Antifoaming agent and skin-feel modifier to improve texture and stability in emulsions, creams, and similar products | Incorporated into the aqueous or oil phase after emulsification is complete; mixed uniformly before filling |
Manufacturing Quality Control of POLYDIMETHYLSILOXANE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Assessment of physical state and clarity under controlled lighting and temperature conditions. |
| Color | Gardner Color Scale | Comparison of sample color against standardized Gardner liquid color standards using a color comparator. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized potassium hydroxide solution using phenolphthalein indicator. |
| Viscosity | Rotational Viscometry | Measurement of resistance to flow under shear stress using a calibrated rotational viscometer at specified temperature. |
| Refractive Index | Refractometry | Determination of light bending angle at air-sample interface using a digital refractometer at 25 C. |
| Density | Pycnometry | Measurement of mass per unit volume using a calibrated pycnometer at 25 C. |
| Volatile Content | Gravimetric Analysis | Weight loss upon heating under controlled conditions to remove volatile components. |
| Water Content | Karl Fischer Titration | Quantitative reaction of water with iodine and sulfur dioxide in pyridine/methanol medium using coulometric or volumetric titration. |
| Heavy Metals | ICP-OES | Atomization and excitation of metal ions in plasma, followed by detection of element-specific emission wavelengths. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue remaining after high-temperature ashing in a muffle furnace. |
| pH (10% aqueous dispersion) | pH Potentiometry | Measurement of hydrogen ion activity in a standardized aqueous dispersion using a calibrated pH electrode. |
| Assay (SiO2 equivalent) | Gravimetric Analysis after Acid Digestion | Conversion of organosilicon compounds to silica via strong acid oxidation, followed by high-temperature ignition and weighing. |
Technical Specifications of POLYDIMETHYLSILOXANE
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow, viscous oil |
| Purity | 98.0%–99.5% |
| Water Content (KF) | <=0.5% |
| Refractive Index (n20/D) | 1.400–1.410 |
| Relative Density (20°C/25°C) | 0.965–0.975 g/cm³ |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | <=0.5 |
| Odor | Characteristic, faint odor |
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 POLYDIMETHYLSILOXANE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of POLYDIMETHYLSILOXANE
Industrial POLYDIMETHYLSILOXANE 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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