China Factory Direct
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| CAS number | 139-66-2 |
| Product name | Diphenyl sulfide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeReagent 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) |
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 |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Preparation of target compounds via substitution or reduction reactions |
| Pesticides | Production of pesticide intermediates | Generation of derivatives through sulfonation, halogenation, and related reactions |
| Dyes | Dye synthesis | Participation in coupling reactions or use as a stabilizer |
| Polymers | Enhancement of polymer performance | Introduction of heat-resistant functional groups to improve thermal stability |
| Analytical Chemistry | Use as an analytical reagent | Employment as a derivatization reagent or reference standard in specific analytical methods |
| Test Item | Common Test Method | Method Overview |
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| Appearance | Visual Inspection | Observe the color, physical state, and presence of mechanical impurities in the sample under natural light or standard illumination. |
| Purity | Gas Chromatography (GC) | Using a capillary column (e.g., DB-5, HP-5) and a hydrogen flame ionization detector (FID), qualitative analysis is performed based on retention time, and quantitative analysis is carried out using peak area normalization or external standard method to determine the content of diphenyl sulfide. |
| Assay | High-Performance Liquid Chromatography (HPLC) | Employing a C18 reversed-phase column and a UV detector (wavelength ~254 nm), with methanol-water as the mobile phase. The external standard method is used for quantification, suitable for supplementary analysis of thermally unstable samples. |
| Structural Identification | Fourier Transform Infrared Spectroscopy (FT-IR) | Sample is prepared as a KBr pellet or liquid film. The infrared absorption spectrum is measured and compared with reference spectra to confirm characteristic functional groups such as S-C, C=C, and C-H. |
| Moisture Content | Karl Fischer Titration | Based on electrochemical titration principle, uses Karl Fischer reagent to accurately determine trace moisture content in the sample; available in volumetric and coulometric methods. |
| Residual Solvents | Gas Chromatography (GC) | Headspace GC method to detect residual organic solvents (e.g., benzene, toluene, ethanol) possibly remaining from manufacturing process, ensuring compliance with pharmacopoeial or environmental regulations. |
| Melting Point | Melting Point Determination | Determine the melting temperature range using a melting point apparatus or capillary method, comparing with literature values (~30–32°C) to assess purity. |
| Sulfur Content | Elemental Analysis (EA) or X-ray Fluorescence Spectroscopy (XRF) | Determine the actual sulfur content in the sample to verify consistency of molecular composition; XRF is suitable for rapid, non-destructive testing. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, determine residual levels of heavy metals such as lead, mercury, cadmium, and arsenic to ensure compliance with safety standards (e.g., pharmaceutical or export requirements). |
| Volatile Impurities / Degradation Products | Gas Chromatography-Mass Spectrometry (GC-MS) | Combines gas chromatography and mass spectrometry to qualitatively analyze trace impurities or degradation products (e.g., thiophenol, oxidation by-products). |
| Test Item | Specification |
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| Appearance | Colorless to almost colorless clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.625–1.635 |
| Relative Density (20°C/25°C) | 1.125–1.135 g/cm³ |
| Odor | Characteristic aromatic 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.