China Factory Direct
|
|
| CAS number | 5982-56-9 |
| Product name | 1,2-Ethanedisulfonic Acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Chemicals | Organic synthesis intermediate for sulfonic acid compound production | 1,2-Ethylene disulfonic acid is synthesized via reaction of ethylene glycol with sulfuric acid, followed by hydration to yield the dihydrate |
| Pharmaceuticals | Synthesis intermediate for certain active pharmaceutical ingredients | Used as a sulfonating agent to introduce sulfonic acid groups during drug synthesis |
| Coatings | Crosslinker or additive to enhance coating performance | Applied in waterborne coatings to improve adhesion and water resistance |
| Water Treatment | Raw material for water treatment chemical production | Employed as a sulfonating agent in the manufacture of flocculants or dispersants |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies active compound by neutralization with standardized NaOH solution using phenolphthalein indicator. |
| Water Content | Karl Fischer Titration | Measures total water (including crystalline water) via iodometric reaction with Karl Fischer reagent. |
| Loss on Drying | Gravimetric Analysis | Determines volatile content by weight loss after drying at specified temperature and time. |
| Heavy Metals | ICP-OES | Simultaneously quantifies trace metal impurities (e.g., Pb, Cd, As) based on element-specific atomic emission intensities. |
| Chloride Impurity | Potentiometric Titration | Detects chloride ions using silver nitrate titrant and silver-sulfide indicator electrode. |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as BaSO4 and determines content from dried precipitate mass. |
| pH of Aqueous Solution | pH Meter Measurement | Measures hydrogen ion activity in a defined aqueous suspension or solution at 25 C. |
| Residue on Ignition | Gravimetric Analysis | Quantifies non-volatile inorganic impurities by weight of residue after high-temperature ashing. |
| Appearance | Visual Inspection | Assesses physical state, color, and presence of foreign particles under controlled lighting and against white background. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separates and quantifies residual solvents using flame ionization detection with calibrated standards. |
| Related Substances | HPLC-UV | Separates and detects structurally related impurities using reversed-phase chromatography and UV absorbance detection. |
| Test Item | Specification |
|---|---|
| Appearance | Off-white crystalline solid |
| Purity | >=98.0% |
| Water Content (KF) | <=0.5% |
| Melting Point | 145-149°C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
|
|
|
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.