SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 761-01-3 |
| Product name | SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty 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 SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
| Industry | Application | Process |
|---|---|---|
| Organic Synthesis | Used as a mild sulfonating agent for the preparation of sulfonic acids, sulfonyl chlorides, and sulfonamides | Reacted with alcohols, amines, or aromatic hydrocarbons in inert solvents (e.g., dichloromethane, chloroform) at low temperatures (0–25°C) to achieve selective sulfonation |
| Pharmaceutical Intermediate Synthesis | Employed to construct sulfonyl-containing drug molecules (e.g., sulfonamide motifs in protein kinase inhibitors and antithrombotic agents) | Reacted with nitrogen-containing heterocycles or aromatic amines under anhydrous conditions to form sulfonamide bonds; base (e.g., triethylamine) is typically added to neutralize the co-generated acid |
| Pesticide Development | Key sulfonating intermediate for synthesizing sulfonylurea herbicides (e.g., bensulfuron-methyl, pyrazosulfuron-ethyl) | Reacted with substituted anilines in aprotic solvents at 0–10°C; temperature control is critical to prevent over-sulfonation or decomposition |
| High-Performance Polymers | Used as an initiator or crosslinking aid for modifying ion-exchange membranes, including polysulfone and sulfonated polyether ether ketone (SPEEK) | Applied in post-polymerization sulfonation of pre-formed membranes via solid–liquid phase-transfer, enabling surface or bulk sulfonation to enhance proton conductivity |
Manufacturing Quality Control of SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (SO3 content) | Acid-base titration with NaOH after hydrolysis | Quantifies liberated H2SO4 from hydrolyzed complex via back-titration with standardized NaOH. |
| Purity (main component) | HPLC with UV detection | Separates and quantifies SO3-triethylamine adduct using reverse-phase chromatography and UV absorbance at 210 nm. |
| Moisture content | Karl Fischer titration | Measures water content electrochemically by iodine generation proportional to water in sample. |
| Residual triethylamine | GC-FID | Quantifies unreacted triethylamine by gas chromatographic separation and flame ionization detection. |
| Free sulfuric acid | Acid-base titration with phenolphthalein indicator | Titrates acidic impurities directly with standardized NaOH to endpoint indicated by color change. |
| Heavy metals (Pb, Cd, Hg, As) | ICP-MS | Simultaneously detects trace heavy metal elements by mass spectrometry after acid digestion and nebulization. |
| Chloride impurity | Ion chromatography | Separates and quantifies Cl- anions using suppressed conductivity detection after anion-exchange separation. |
| Sulfate impurity | Gravimetric analysis | Precipitates sulfate as BaSO4 and determines content by weight of dried precipitate. |
| Melting point | Capillary melting point apparatus | Determines temperature range at which solid-to-liquid phase transition occurs under controlled heating. |
| Appearance and color | Visual inspection against standard color scale | Compares sample clarity and yellow-brown hue to reference standards under controlled lighting. |
| Bulk density | Tap density tester | Measures mass per unit volume after standardized mechanical tapping of a known powder mass. |
| Particle size distribution | Laser diffraction | Determines particle size profile by analyzing angular scattering pattern of laser beam passing through dispersed sample. |
Technical Specifications of SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 142–146°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Odor | Characteristic faint amine-like 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 SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
Safety Information of SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
| Pictograms |  |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX
Industrial SULFUR TRIOXIDE-TRIETHYLAMINE COMPLEX 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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