Sodium p-toluenesulfinate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 824-79-3 |
| Product name | Sodium p-toluenesulfinate |
| 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 Sodium p-toluenesulfinate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sodium p-toluenesulfinate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sodium p-toluenesulfinate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthetic intermediate for cephalosporin antibiotics (e.g., cefotaxime, cefoperazone) | Used to synthesize antibiotic side chains; participates in acylation or coupling reactions |
| Pharmaceuticals | Synthesis of angiotensin-converting enzyme (ACE) inhibitor antihypertensive agents | Serves as an organic building block for constructing drug molecular scaffolds |
| Synthetic Materials | Synthesis of high-performance engineering plastics such as polysulfone and polyethersulfone | Acts as a chain terminator or molecular weight regulator to control polymer molecular weight |
| Synthetic Materials | Modification of polyphenylene ether (PPE) resins | Functions as a functional monomer or end-group modifier to enhance resin performance |
| Organic Synthesis | Regulator in free-radical polymerization reactions | Controls polymerization rate and molecular weight distribution |
| Organic Synthesis | Preparation of p-toluenesulfinic acid or other p-toluenesulfinic acid derivatives | Converted to the free sulfinic acid or its esters via acidification |
| Others | Additive in electroplating processes | Improves electrolyte performance or deposit quality |
Manufacturing Quality Control of Sodium p-toluenesulfinate
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the color, condition (e.g., white or off-white crystalline powder), and presence of foreign matter with the naked eye. |
| Identification | Infrared Spectroscopy (IR) | Prepare a sample pellet and measure the infrared absorption spectrum; compare characteristic absorption peaks (e.g., S=O, C–H functional groups) with standard spectra. |
| Chemical Color Development Reaction | React with specific reagents (e.g., diazonium salts) to produce characteristic colors for structural confirmation. | |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reverse-phase C18 column and an appropriate mobile phase (e.g., methanol-water or acetonitrile-buffer salt) for separation; quantify the main component using a UV detector (e.g., at 220 nm). |
| Oxidation-Reduction Titration | Utilize the reducing property of sodium p-toluenesulfinate, titrate with iodine standard solution, and use starch as an indicator to calculate content. | |
| pH Value | pH Meter Method | Prepare a certain concentration (e.g., 1% w/v) aqueous solution and measure its acidity or alkalinity using a calibrated pH meter. |
| Dry Loss | Drying Loss Method | Dry at a specified temperature (e.g., 105°C) until constant weight, calculate the percentage of mass loss to evaluate moisture and volatile impurities. |
| Residue on Ignition (Sulfate Ash) | Ignition Method | Heat the sample at a high temperature (about 700–800°C), weigh the residual inorganic material after ignition, reflecting the total amount of inorganic impurities. |
| Heavy Metals | Thioacetamide Colorimetric Method (or Atomic Absorption Method) | Treat the sample according to pharmacopoeia methods; generate colored sulfides by reacting with thioacetamide under weakly acidic conditions and perform colorimetric determination; alternatively, use atomic absorption spectroscopy for quantification. |
| Chlorides | Silver Nitrate Turbidimetric Method | Add silver nitrate to the sample solution acidified with nitric acid; compare turbidity with standard sodium chloride solution to control chloride impurity limits. |
| Sulfates | Barium Chloride Turbidimetric Method | Add barium chloride to the sample solution in hydrochloric acid medium to form barium sulfate precipitate, and compare turbidity with standard potassium sulfate solution. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use gradient or isocratic elution to separate and detect possible organic impurities (e.g., p-toluene sulfonic acid, oxidation products), and calculate impurity content using area normalization or self-reference method. |
Technical Specifications of Sodium p-toluenesulfinate
| Test Item | Specification |
|---|---|
| Appearance | White to light yellow powder or crystals |
| 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) | Consistent with structure |
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 Sodium p-toluenesulfinate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Sodium p-toluenesulfinate
Packaging of Sodium p-toluenesulfinate
Industrial Sodium p-toluenesulfinate 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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