China Factory Direct
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| CAS number | 2001-94-7 |
| Product name | Dipotassium EDTA |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial GradeSpecialty GradeFood GradeCosmetic 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 |
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| Water Treatment | Water Softening | Chelates metal ions such as Ca²⁺ and Mg²⁺ in hard water to form soluble chelates, thereby softening the water. |
| Textile Industry | Dyeing Auxiliary | Acts as a dyeing auxiliary to enhance dye adsorption onto fibers and removes metal ions from water to prevent uneven dyeing. |
| Food Additives | Stabilizer | Prevents discoloration, degradation, or precipitation caused by metal ions in food products, thereby extending shelf life. |
| Cosmetics | Stabilizer | Chelates metal ions to prevent discoloration and inactivation of active ingredients in cosmetic formulations. |
| Detergents | Chelating Agent | Added to detergents to chelate metal ions in water, enhancing cleaning performance and formulation stability. |
| Pharmaceuticals and Biotechnology | Drug Manufacturing | Used as a chelating agent to remove metal ions, ensuring drug purity and stability. |
| Pharmaceuticals and Biotechnology | Protein Purification | Applied during protein purification to remove metal ions, preventing protein denaturation and improving purification efficiency. |
| Agriculture and Soil Remediation | Heavy Metal Removal | Chelates and removes heavy metal ions from soil, reducing their adverse effects on plants and the environment. |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (EDTA-K2 content) | Acid-base titration with standard HCl | Direct titration of EDTA-K2 using standardized hydrochloric acid in acidic medium, based on protonation of amine and carboxylate groups. |
| pH (1% aqueous solution) | Potentiometric pH measurement | Determination of hydrogen ion activity using calibrated pH electrode in a 1% w/v aqueous solution at 25 C. |
| Loss on drying | Gravimetric analysis (thermogravimetry) | Mass loss measured after drying sample at 105 C to constant weight, indicating volatile impurities and moisture. |
| Heavy metals (as Pb) | Colorimetric sulfide precipitation | Reaction with thioacetamide under controlled pH to form colored metal sulfide complexes, compared visually or spectrophotometrically. |
| Iron (Fe) | Atomic absorption spectroscopy (AAS) | Quantification of Fe by measuring absorbance of ground-state atoms in acetylene-air flame at 248.3 nm. |
| Sulfate (SO4) | Barium chloride turbidimetry | Precipitation of sulfate as barium sulfate in acidic medium; turbidity measured spectrophotometrically at 420 nm. |
| Chloride (Cl) | Argentometric titration (Mohr method) | Titration with standardized silver nitrate using potassium chromate indicator; endpoint signaled by red silver chromate formation. |
| Calcium (Ca) | Complexometric titration with EDTA | Back-titration of excess calcium added to sample using standardized EDTA, with Eriochrome Black T indicator. |
| Potassium (K) | Flame photometry | Measurement of characteristic emission intensity at 766.5 nm from thermally excited potassium atoms in air-propane flame. |
| Residue on ignition | Gravimetric analysis (ignition at 800 C) | Mass of non-volatile inorganic residue determined after incineration at 800 C in platinum crucible. |
| Water content (Karl Fischer) | Coulometric Karl Fischer titration | Electrochemical generation of iodine to react stoichiometrically with water; water quantified from total charge passed. |
| Microbial contamination | Membrane filtration and colony counting | Filtration of aqueous solution through sterile membrane, followed by incubation on appropriate agar media and enumeration of CFUs. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Solubility | Freely soluble in water |
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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.