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Technical specifications
Basic Information
| Parameters | Parameters |
|---|---|
| Product Name | EDTA tetrasodium salt solution |
| Other product names | EDTA-4Na liquid |
| English name | EDTA-4Na Solution / Tetrasodium EDTA Solution |
| Molecular Formula | C₁₀H₁₂N₂O₈Na₄ |
| Molecular weight | 380.2 |
| CAS Number | 64-02-8 |
| Appearance | Light yellow liquid |
Technical specifications for industrial grade
| Control Parameter | Standard |
|---|---|
| Content | 39% Min. |
| pH (1% aqueous solution, 25°C) | 11.0 — 12.0 |
| NTA | 2% Max. |
| Chelation Value | 100 Min. (mgCaCO₃/g) |
| Density (g/cm³, 25℃) | 1.26 — 1.35 |
| Color (APHA) | 250 Max. |
| Lead (Pb) | 0.001% Max. |
| Appearance | Light yellow liquid |
Technical Specifications for Household Chemicals
| Control Parameter | Standard |
|---|---|
| Content | 39% Min. |
| pH (1% aqueous solution, 25°C) | 9.0 — 11.5 |
| NTA | 0.1% Max. |
| Chelation Value | 102 Min. (mgCaCO₃/g) |
| Density (g/cm³, 25℃) | 1.20 — 1.30 |
| Color (APHA) | 30 Max. |
| Lead (Pb) | 0.001% Max. |
| Iron (Fe) | 0.001% Max. |
| Appearance | Light yellow liquid |
Product description
Product overview
Tetrasodium ethylenediaminetetraacetate solution (EDTA-4Na), formula C₁₀H₁₂N₂O₈Na₄, molecular weight 380.2, CAS 64-02-8. Light yellow liquid, ready to use without dissolution, convenient and fast. Available in industrial and household chemical grades to meet different needs.
Key Advantages
- Ready to useReady-to-use without dissolution, convenient and fast
- Various specifications availableTwo specifications: industrial and household (chemical household) grade.
- High ConcentrationContent ≥39%, high chelating capacity.
- Alkaline FormulapH 9.0-12.0, suitable for alkaline systems.
- Low colorDomestic grade: color ≤30 Hazen units, clear appearance.
- Convenient DeliveryLiquid form, easy to dose and apply.
Comparison of Product Advantages
| Grade | Content | pH | Color | Area of application |
|---|---|---|---|---|
| Technical Grade | ≥39% | 11.0-12.0 | ≤250 | Industrial cleaning and metal treatment |
| Household and Cosmetic Grade | ≥39% | 9.0-11.5 | ≤30 | Household cleaning products, personal care products |
Specification and Grade
Application Recommendations
Recommended dosage
| Field of Application | Recommended dosage | Description |
|---|---|---|
| Industrial detergents | 5-20% | Adjusted according to purification requirements and formulation |
| Metalworking fluid | 1-10% | To prevent interference from metal ions |
| Boiler water treatment | 10-50 mg/L | Adjust according to water hardness |
| Household Cleaning Products | 1-5% | Improves cleaning, softens water |
Application recommendations
- Shake before use to ensure uniformity of the solution.
- Compatible with most surfactants, but a preliminary compatibility test is recommended.
- Avoid direct mixing with strong acids to prevent reduction in chelating efficiency.
- Recommended storage temperature 5-35°C, avoid freezing and high temperatures.
- The specific dosage should be adjusted according to formulation requirements, target crop, and local regulations.
- It is recommended to conduct a trial test before large-scale application.
- Before mixing with other chemicals, perform a compatibility test.
Field of Application
Industrial cleaning
Used in industrial cleaners, metal treatment solutions, boiler water treatment, etc., to effectively remove metal ions and prevent scale formation and corrosion.
Household cleaning products
Used in household cleaning products such as liquid laundry detergents, dishwashing liquids, floor cleaners, etc., to improve cleaning efficiency and soften water.
- Store in a cool place
- Keep in sealed container
- Store in a dry, well-ventilated place
- Protect from freezing in winter
Frequently asked questions
Key differences:
- ColorIndustrial grade: color ≤250 Hazen; household grade: color ≤30 Hazen (more transparent).
- pHHousehold grade: pH 9.0-11.5 (milder), industrial grade: pH 11.0-12.0
- NTA contentHousehold grade: ≤0.1% (below), industrial grade: ≤2%.
- Area of applicationIndustrial grade is suitable for industrial cleaning, metal processing, etc.; household grade is suitable for home cleaning, personal hygiene, etc.
Key differences:
- FormLiquid solution, solid powder
- Ease of UseSolution ready to use without dissolving, more convenient
- ConcentrationSolution content ≥39%, ready-to-use diluted formulation.
- TransportationLiquid form is more convenient to transport than powder, especially for large usage volumes.
- StoragePowder is easier to store long-term, solution requires freeze protection
When stored in its original sealed packaging in a cool, dry, well-ventilated place, the product shelf life is12 monthsStore in a place protected from direct sunlight; avoid freezing in winter.
Yes, we provide free samples for customer testing. Please contact our sales team to confirm sample quantities and shipping details.
Standard minimum order quantity (MOQ) is one pallet (approximately 1 ton and up). For special specifications or custom packaging requirements, please contact our sales team to confirm.
This product is exported to Southeast Asia, the Middle East, Europe, and other regions. Export documents provided include:
- Commercial Invoice
- Packing List
- Certificate of Origin (CO)
- SDS/MSDS (Multilingual Versions)
- Certificate of Analysis (COA)
- Assessment report for sea/air transport
- Other required certification documents
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