Sodium methanesulfinate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 20277-69-4 |
| Product name | Sodium methanesulfinate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeReagent GradeFood 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 methanesulfinate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sodium methanesulfinate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sodium methanesulfinate
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Organic synthesis intermediate for sulfur-containing drugs (e.g., antibiotics, antivirals) | Used in nucleophilic substitution and reduction reactions |
| Pesticides | Synthesis of sulfonyl-containing pesticide active ingredients | Applied in condensation and sulfonation reactions |
| Dyes | Dye intermediate for synthesizing specific thio-dyes | Employed in coupling and redox reactions |
| Food | Food additive (preservative or antioxidant, subject to regulatory limits) | Direct addition or incorporation into compound formulations |
| Polymers | Chain transfer agent or initiator component in polymerization | Utilized in free-radical and emulsion polymerization |
| Analytical Chemistry | Reducing agent or standard reagent | Applied in titration analysis and sample preparation |
Manufacturing Quality Control of Sodium methanesulfinate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (NaCH3SO2) | Acid-Base Titration with HCl | Quantifies active component by back-titration after acid hydrolysis to methanesulfinic acid and subsequent neutralization. |
| Moisture Content | Karl Fischer Titration | Measures water content electrochemically via iodine-sulfur dioxide reaction in anhydrous methanol medium. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determines hydrogen ion activity using calibrated glass electrode in 1% w/v aqueous solution. |
| Chloride Impurity | Ion Chromatography (IC) | Separates and quantifies Cl- ions based on anion exchange retention and conductivity detection. |
| Sulfate Impurity | Barium Sulfate Gravimetric Method | Precipitates SO4(2-) as BaSO4, followed by drying and weighing of the insoluble residue. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Atomizes and ionizes sample; detects trace metal isotopes via mass-to-charge ratio with high sensitivity. |
| Iron Impurity | Atomic Absorption Spectroscopy (AAS) | Measures absorbance of ground-state Fe atoms at characteristic wavelength (248.3 nm) in air-acetylene flame. |
| Sodium Content | Flame Photometry | Quantifies Na+ by measuring intensity of emitted yellow light (589 nm) upon thermal excitation in flame. |
| Organic Impurities | HPLC-UV | Separates impurities on reversed-phase column and detects via UV absorption at 210–220 nm. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic residue after controlled ashing at 700–800 C. |
| Particle Size Distribution | Laser Diffraction | Determines size distribution by analyzing angular variation in laser light scattering pattern. |
| Bulk Density | Tap Density Measurement | Calculates mass per unit volume after standardized tapping of a known powder mass in a graduated cylinder. |
Technical Specifications of Sodium methanesulfinate
| Test Item | Specification |
|---|---|
| Appearance | Off-white solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=10 ppm |
| 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 methanesulfinate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Sodium methanesulfinate
Packaging of Sodium methanesulfinate
Industrial Sodium methanesulfinate 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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