Octaphenylcyclotetrasiloxane Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 546-56-5 |
| Product name | Octaphenylcyclotetrasiloxane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic 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 Octaphenylcyclotetrasiloxane
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Octaphenylcyclotetrasiloxane Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Octaphenylcyclotetrasiloxane
| Industry | Application | Process |
|---|---|---|
| Organosilicon Materials | Precursor for synthesizing organosilicon resins and silicone rubber | Ring-opening polymerization, typically catalyzed by acid or base |
| Electronic Chemicals | Additive in photoresists or encapsulation materials | Thermal decomposition or chemical vapor deposition (CVD) to prepare silicon-containing thin films |
| Nanomaterials | Silicon source for preparing silica nanoparticles or mesoporous materials | Sol-gel process: hydrolysis and condensation in alcohol/water systems |
| Specialty Coatings | Modified component imparting heat resistance, weather resistance, and hydrophobicity | Blending with or grafting onto organic resins, followed by coating and curing |
Manufacturing Quality Control of Octaphenylcyclotetrasiloxane
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies main component using reverse-phase HPLC with UV detection at 254 nm based on peak area comparison against reference standard. |
| Residual Solvents | GC-FID | Separates and quantifies volatile organic solvents by gas chromatography with flame ionization detection using calibrated external standards. |
| Moisture Content | Karl Fischer Titration | Determines water content via coulometric or volumetric titration where iodine reacts stoichiometrically with water in a methanol-based reagent. |
| Acid Value | Acid-Base Titration | Measures acidic impurities by titrating with standardized potassium hydroxide solution in isopropanol using phenolphthalein indicator. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Quantifies trace heavy metals after acid digestion by inductively coupled plasma mass spectrometry with isotopic detection and internal standard correction. |
| Iron (Fe) Content | AAS | Determines iron concentration by atomic absorption spectroscopy using air-acetylene flame and characteristic 248.3 nm wavelength. |
| Chloride Ion | Ion Chromatography | Separates and quantifies chloride anions using suppressed conductivity detection after elution with carbonate/bicarbonate buffer. |
| Volatile Matter | Thermogravimetric Analysis (TGA) | Measures weight loss upon heating under nitrogen to determine non-volatile residue and residual volatiles up to 300 C. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid using calibrated capillary tube method per USP <741>. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Evaluates yellowness index by comparing sample solution in toluene to APHA platinum-cobalt standards or measuring absorbance at 430 nm. |
| Residue on Ignition | Gravimetric Method | Measures inorganic ash content after high-temperature incineration (700-800 C) and weighing of residual residue. |
| Particle Size Distribution | Laser Diffraction | Analyzes dry powder particle size distribution using Mie scattering theory with helium-neon laser and automated dispersion. |
Technical Specifications of Octaphenylcyclotetrasiloxane
| Test Item | Specification |
|---|---|
| Appearance | White solid |
| Purity | >=98.0% (LC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 240-245°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Residue on Ignition | <=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 Octaphenylcyclotetrasiloxane
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Octaphenylcyclotetrasiloxane
Packaging of Octaphenylcyclotetrasiloxane
Industrial Octaphenylcyclotetrasiloxane 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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