Sulfolane Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 126-33-0 |
| Product name | Sulfolane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty 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 Sulfolane
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sulfolane Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sulfolane
| Industry | Application | Process |
|---|---|---|
| Petrochemicals | Aromatic extraction solvent | Liquid–liquid extraction to separate aromatic hydrocarbons (e.g., benzene, toluene, xylene) from non-aromatic components |
| Natural gas processing | Acid gas removal (H₂S, CO₂) | Physical absorption using high selectivity and solubility to remove acidic components |
| Pharmaceuticals | Reaction solvent, crystallization medium | Used in organic synthesis reactions (e.g., coupling reactions) and purification/recrystallization of active pharmaceutical ingredients |
| Electronic chemicals | Semiconductor cleaning agent, photoresist stripper component | Formulated into cleaning or stripping solutions as a high-boiling, low-toxicity solvent |
| Polymers | Polymerization solvent, spinning solvent | Applied in condensation polymerization and wet-spinning processes for high-performance polymers such as polyimide and polysulfone |
| Battery materials | Electrolyte additive for lithium–sulfur batteries | Enhances polysulfide solubility and electrode interface stability to improve cycling performance |
Manufacturing Quality Control of Sulfolane
| Test Item | Common Test Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Place the sample in a transparent glass container and visually examine its color and clarity under natural light or standard lighting to determine if it is colorless, transparent, and free of suspended particles or precipitates. |
| Colority | Platinum-Cobalt Colorimetric Method (GB/T 3143) | Use platinum-cobalt standard solutions for color comparison to measure the sample's color value (unit: Hazen or APHA), used to assess product purity and degree of oxidation. |
| Purity (Main Component Content) | Gas Chromatography (GC) | Using a capillary gas chromatograph with FID detector, quantify sulfolane content via external or internal standard method; effectively separates impurities such as moisture and thiophene derivatives. |
| Moisture Content | Karl Fischer Titration | Based on electrochemical reaction principles, use KF reagent to titrate water in the sample. Available in volumetric and coulometric methods, suitable for trace moisture determination (ppm level). |
| pH Value | pH Meter Method | Dissolve sulfolane into an aqueous solution (e.g., 10% w/w), then measure acidity/basicity using a calibrated pH meter to evaluate its corrosiveness to equipment. |
| Density | Density Meter or Oscillating U-tube Densitometer | Measure the sample’s density at a specified temperature (e.g., 20°C) using a hydrometer or digital oscillating U-tube densitometer, used to assist in assessing purity and consistency. |
| Refractive Index | Refractometry (Abbe Refractometer) | Measure the refractive index of the sample under constant temperature (e.g., 20°C) using an Abbe refractometer; serves as a physical constant for identification and purity assessment. |
| Boiling Point / Boiling Range | Distillation Method or Differential Scanning Calorimetry (DSC) | Determine initial and final boiling points by atmospheric distillation, or use DSC to measure phase transition temperatures, evaluating volatility and compositional consistency. |
| Residual Solvents | Gas Chromatography (GC) | Use headspace sampling with GC/FID or GC-MS techniques to detect organic solvents possibly remaining from manufacturing processes (e.g., toluene, dichloromethane). |
| Ash Content | Gravimetric Method (Ignition Residue) | Iignite the sample in a high-temperature muffle furnace until constant weight, then weigh the residual inorganic material to calculate ash content, reflecting levels of inorganic impurities. |
| Acid Number | Acid-Base Titration | Titrate acidic impurities in the sample with standardized potassium hydroxide in ethanol solution, expressed as mg KOH/g, used to evaluate the extent of oxidative degradation. |
Technical Specifications of Sulfolane
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Refractive Index (n20/D) | 1.446–1.449 |
| Relative Density (20°C/25°C) | 1.257–1.263 g/cm³ |
| Acid Value (mg KOH/g) | <=0.1 |
| Color (APHA/Pt-Co) | <=20 |
| Odor | Characteristic sulfone 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 Sulfolane
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Sulfolane
Packaging of Sulfolane
Industrial Sulfolane 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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