China Factory Direct
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| CAS number | 17013-01-3 |
| Product name | Disodium fumarate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty 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) |
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 |
|---|---|---|
| Food Industry | Food additive, acidity regulator | Used as a buffering agent and pH control agent in dairy products, beverages, and baked goods |
| Pharmaceutical Industry | Pharmaceutical excipient, active ingredient carrier | Used in the preparation of antifungal drugs and as a comonomer in controlled-release formulations |
| Chemical Industry | Unsaturated polyester resin production | Applied as a crosslinking agent or comonomer in resin synthesis reactions |
| Animal Feed Industry | Feed preservative, acidifier | Added to animal feed to improve gut health and inhibit growth of harmful microorganisms |
| Water Treatment | Corrosion inhibitor component | Used as a corrosion-inhibiting synergist for metal surfaces in water treatment formulations |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Sodium Fumarate Content) | Acid-Base Titration | Direct titration with standardized HCl solution using bromocresol green indicator; based on protonation of fumarate anion. |
| Loss on Drying | Gravimetric Method (Thermogravimetry) | Mass loss measured after drying at 105 C for 2 h; reflects volatile impurities and residual moisture. |
| Heavy Metals (as Pb) | Colorimetric Sulfide Precipitation | Reaction with thioacetamide in acidic medium to form colored metal sulfide complexes, compared visually or spectrophotometrically. |
| Chloride | Potentiometric Titration | Titration with silver nitrate using silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| Sulfate | Gravimetric Method | Precipitation as BaSO4 in acidic medium followed by filtration, drying, and weighing of the precipitate. |
| Iron (Fe) | Atomic Absorption Spectroscopy (AAS) | Quantification of Fe concentration by measuring absorption of characteristic atomic line (248.3 nm) in flame atomizer. |
| Arsenic | Gutzeit Limit Test | Reduction of arsenic compounds to arsine gas, which reacts with mercuric bromide paper to yield characteristic yellow stain. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Measurement using calibrated glass electrode in 1% w/v aqueous solution at 25 C. |
| Residue on Ignition | Gravimetric Method | Mass of non-volatile inorganic residue remaining after ignition at 600-700 C. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light through a defined concentration and path length solution. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to determine size distribution by Mie theory. |
| Microbial Limits | Membrane Filtration and Plate Count | Filtration of sample solution, followed by incubation on appropriate agar media and colony enumeration. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Melting Point | 275-280 °C (decomposes) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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| 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.