Diphenyl carbonate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 102-09-0 |
| Product name | Diphenyl carbonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 Diphenyl carbonate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Diphenyl carbonate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Diphenyl carbonate
| Industry | Application | Process |
|---|---|---|
| Polymer Materials | Key monomer for polycarbonate (PC) production, used in phosgenation or transesterification synthesis | Reacted with bisphenol A via molten transesterification or interfacial polycondensation to produce high-performance engineering plastics |
| Chemical Intermediates | Intermediate for synthesizing other organic carbonates, agrochemicals, and pharmaceuticals | Processed via transesterification or carbonylation to yield carbonates or derivatives with specific structures |
| Fine Chemicals | Used as plasticizer, solvent, or additive in specialty coatings or material modification | Blended or reacted with other compounds to enhance material flexibility or solubility |
Manufacturing Quality Control of Diphenyl carbonate
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Purity | High-Performance Liquid Chromatography (HPLC) | Uses a reverse-phase column with methanol/water or acetonitrile/water as the mobile phase, and a UV detector (e.g., 254 nm) to quantify the purity of the main component. |
| Moisture Content | Karl Fischer Titration | Determines trace water content by the quantitative reaction of iodine and sulfur dioxide with water in a pyridine/methanol system, with endpoint detection via potentiometry or visual observation. |
| Melting Point | Capillary Melting Point Method | Sample is packed into a capillary tube and heated at a controlled rate in a melting point apparatus; the initial and complete melting temperatures are observed and recorded to assess purity. |
| Appearance | Visual Inspection | Observe the sample's color and physical state (should be white or off-white crystals) under natural or standard lighting to determine conformance to specifications. |
| Color Intensity | Platinum-Cobalt Colorimetric Method or Colorimeter | Compare the solution color of the sample against standard platinum-cobalt solutions or use a colorimeter to quantify color values and control chromatic impurities. |
| Free Phenol Content | Spectrophotometry or HPLC | Phenolic compounds react with color-developing reagents (e.g., 4-aminoantipyrine) to form colored products measured at a specific wavelength; alternatively, separate and quantify using HPLC. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, residual levels of heavy metals (e.g., lead, cadmium, mercury, arsenic) are determined using atomic absorption spectroscopy or inductively coupled plasma mass spectrometry. |
| Residual Volatile Organic Compounds | Gas Chromatography (GC-FID/ECD) | Headspace or direct injection is used; components are separated on a capillary column and detected/quantified by FID or ECD for residual solvents (e.g., benzene, toluene). |
| Residue on Ignition (Ash Content) | High-Temperature Incineration | Sample is incinerated in a muffle furnace at approximately 600–800 °C until constant weight; the remaining inorganic residue is weighed to calculate ash percentage. |
| pH Value (aqueous solution) | pH Meter Method | Prepare a suspension or saturated aqueous solution of specified concentration, then measure acidity or alkalinity using a calibrated pH meter to evaluate acidic impurities. |
Technical Specifications of Diphenyl carbonate
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=99.0% (GC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 78-82°C |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Color (APHA/Pt-Co) | <=30 |
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 Diphenyl carbonate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Diphenyl carbonate
Packaging of Diphenyl carbonate
Industrial Diphenyl carbonate 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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