BENZENESULFINIC ACID SODIUM SALT Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 873-55-2 |
| Product name | BENZENESULFINIC ACID SODIUM SALT |
| 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 BENZENESULFINIC ACID SODIUM SALT
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk BENZENESULFINIC ACID SODIUM SALT Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of BENZENESULFINIC ACID SODIUM SALT
| Industry | Application | Process |
|---|---|---|
| Synthetic Rubber | Polymerization terminator | Added during emulsion polymerization of styrene-butadiene rubber (SBR), nitrile rubber (NBR), and similar elastomers to rapidly terminate polymerization, thereby controlling molecular weight and monomer conversion |
| Pharmaceuticals | Pharmaceutical intermediate | Used in the synthesis of sulfonamide drugs or other sulfur-containing drug molecules |
| Electroplating | Nickel plating brightener | Employed as a primary or secondary brightener in nickel plating processes to enhance coating brightness and leveling |
| Organic Synthesis | Dehalogenating agent | Applied in dehalogenation reactions to remove halogen atoms from organic molecules |
| Organic Synthesis | Reducing agent | Used to reduce nitro compounds to amines or participate in specific reduction reactions |
| Photographic Materials | Photographic aid | Used as a chemical additive in photographic emulsions or developing solutions |
| Polymer Materials | Antioxidant/stabilizer | Added during polymer synthesis or processing to prevent oxidative degradation and improve material stability |
| Dye Industry | Dye synthesis intermediate | Used in the synthesis of dyes with specific molecular structures |
Manufacturing Quality Control of BENZENESULFINIC ACID SODIUM SALT
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (NaC6H5SO2) | Acid-Base Titration | Titration with standardized HCl after acidification to liberate benzenesulfinic acid, using bromothymol blue indicator. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with Karl Fischer reagent to quantify water based on iodine consumption. |
| pH of 5% Aqueous Solution | Potentiometric pH Measurement | Measurement using calibrated glass electrode in a 5% w/v aqueous solution at 25 C. |
| Chloride (Cl-) | Argentometric Titration | Titration with standardized AgNO3 solution using potassium chromate indicator (Mohr method). |
| Sulfate (SO4^2-) | Gravimetric Analysis | Precipitation as BaSO4 after acidification and digestion, followed by ignition and weighing. |
| Heavy Metals (as Pb) | Colorimetric Limit Test | Reaction with thioacetamide in acetate buffer to form colored metal sulfide complexes, compared visually to lead standard. |
| Iron (Fe) | Atomic Absorption Spectroscopy (AAS) | Quantification of Fe concentration by measuring absorption of characteristic wavelength light in atomized sample. |
| Loss on Drying | Thermogravimetric Method | Weight loss measured after drying at 105 C for 2 hours under controlled atmospheric conditions. |
| Residue on Ignition | Gravimetric Ash Test | Residue mass determined after incineration at 600 C until constant weight is achieved. |
| Organic Impurities (Related Substances) | High-Performance Liquid Chromatography (HPLC) | Separation on reversed-phase column with UV detection at 254 nm; identification and quantification against reference standards. |
| Sodium (Na+) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Quantification via emission intensity of Na-specific spectral line after plasma atomization and excitation. |
| Appearance and Color | Visual Inspection | Assessment of crystalline form, color, and absence of visible foreign particles against white background under controlled lighting. |
Technical Specifications of BENZENESULFINIC ACID SODIUM SALT
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.3% |
| Residue on Ignition | <=0.2% |
| Heavy Metals | <=10 ppm |
| Odor | Characteristic sulfurous 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 BENZENESULFINIC ACID SODIUM SALT
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of BENZENESULFINIC ACID SODIUM SALT
Safety Information of BENZENESULFINIC ACID SODIUM SALT
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of BENZENESULFINIC ACID SODIUM SALT
Industrial BENZENESULFINIC ACID SODIUM SALT 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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