P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 868858-48-4 |
| Product name | P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeReagent GradeIndustrial 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 P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
| Industry | Application | Process Description |
|---|---|---|
| Pharmaceuticals | Organic synthesis intermediate | Used as a chiral catalyst or intermediate in the synthesis of drug molecules |
| Chemical synthesis | Catalyst | Applied as a ligand or co-catalyst in transition metal-catalyzed cross-coupling reactions |
| Materials science | Functional material preparation | Employed in the synthesis of organic functional materials with specific properties |
| Research & development | Asymmetric synthesis | Utilized as a chiral source or auxiliary reagent in asymmetric synthesis reactions |
Manufacturing Quality Control of P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (NaC7H7SO2.4H2O) | Acid-Base Titration with HCl | Quantifies active compound by titration of sulfinate anion with standardized HCl after acidification and iodometric back-titration. |
| Water Content | Karl Fischer Titration | Measures total water content via coulometric or volumetric reaction of water with iodine, sulfur dioxide, and base in methanol. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Simultaneously quantifies trace heavy metals by ionization in plasma and mass spectrometric detection. |
| Sodium Content | Flame Photometry | Determines sodium concentration based on intensity of characteristic emission wavelength (589 nm) in flame. |
| Residual Solvents (e.g., Methanol, Ethanol) | GC-FID | Separates and quantifies volatile organic solvents using gas chromatography with flame ionization detection. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Measures chloride ions by titration with silver nitrate, detecting endpoint via silver electrode potential change. |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as BaSO4 under controlled conditions and determines mass after drying. |
| pH of Aqueous Solution | pH Meter Measurement | Measures hydrogen ion activity in 1% w/v aqueous solution using calibrated glass electrode system. |
| Loss on Drying (LOD) | Thermogravimetric Analysis (TGA) | Determines weight loss upon heating to 105 C under nitrogen to quantify volatile components including hydration water. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution by analyzing angular variation in laser light scattering from dispersed sample. |
| Microbial Contamination | Membrane Filtration and Plate Count | Detects and enumerates aerobic mesophilic microorganisms using filtration, membrane transfer, and colony growth on agar media. |
| Related Substances | HPLC-UV | Separates and quantifies structurally related impurities using reversed-phase chromatography and UV absorbance detection at 254 nm. |
Technical Specifications of P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.2% |
| Identification (NMR) | Conforms to reference standard |
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 P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
Safety Information of P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE
Industrial P-TOLUENESULFINIC ACID SODIUM SALT TETRAHYDRATE 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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