Dimethyl sulfite Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 616-42-2 |
| Product name | Dimethyl sulfite |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeSpecialty Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 Dimethyl sulfite
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Dimethyl sulfite Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Dimethyl sulfite
| Industry | Application | Process |
|---|---|---|
| Chemicals | Organic synthesis intermediate | Used to prepare sulfides and sulfones; serves as an alkylating agent in chemical reactions |
| Pesticides | Raw material for pesticide synthesis | Acts as a methylating agent in the synthesis of insecticides, fungicides, and other agrochemicals |
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Involved in constructing sulfur-containing organic drug molecules; used to prepare methyl sulfoxide derivatives |
| Dyes | Production of dye intermediates | Functions as an alkylating agent in dye synthesis to introduce specific structural units |
Manufacturing Quality Control of Dimethyl sulfite
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID | Quantitative determination based on peak area comparison against a certified reference standard under optimized chromatographic conditions. |
| Water Content | Karl Fischer Titration | Electrochemical titration measuring water via iodine-sulfur dioxide reaction in a methanolic pyridine solvent system. |
| Acidity (as H2SO4) | Acid-Base Titration | Neutralization of acidic impurities with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Color | Visual Comparison or Spectrophotometry (APHA/Pt-Co scale) | Comparison of sample color to standardized platinum-cobalt solutions or measurement of absorbance at 455 nm. |
| Density at 20 degC | Digital Density Meter | Measurement of mass per unit volume using oscillating U-tube principle calibrated with air and water standards. |
| Refractive Index at 20 degC | Refractometry | Determination of light bending angle through the liquid sample using a calibrated Abbe refractometer. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of a known sample mass to dryness followed by weighing of non-volatile residue. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride anions using anion-exchange column and conductivity detection. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Atomization of sample digest followed by absorption measurement at characteristic wavelength for lead. |
| Sulfate Impurity | Barium Chloride Turbidimetry | Precipitation of sulfate as barium sulfate and quantification via turbidity measurement at 420 nm. |
| Non-Volatile Matter | Gravimetric Analysis | Evaporation of sample under controlled temperature and pressure, then weighing of residual solids. |
| Odor | Organoleptic Evaluation | Qualified personnel assess presence and intensity of characteristic pungent odor relative to specification limits. |
Technical Specifications of Dimethyl sulfite
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.5% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.405–1.415 |
| Relative Density (20°C/25°C) | 1.170–1.190 g/cm³ |
| 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 Dimethyl sulfite
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Dimethyl sulfite
Packaging of Dimethyl sulfite
Industrial Dimethyl sulfite 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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