Tetrasodium EDTA Salts
Versatile chelating agent used in various applications, including chemistry and medicine.
EDTA 4Na (Tetrasodium Ethylenediaminetetraacetic)
- CAS Number: 64-02-8; 13235-36-4
- Purity (%): 99% or 40%
- Molecular formula: C10H12N2O8Na4.4H2O
- Appearance: white crystalline powder and light yellow liquid
- Package: 25kgs/bag or 1.25T/IBC drum
- Other Name: Ethylenediaminetetraacetic acid tetrasodium salt, Tetrasodium EDTA, Edetate sodium, Trilon B
Tetrasodium EDTA Specification
| ITEMS | SPECIFICATIONS |
| EDTA-4Na | ≥99.0% |
| Chelate Value | ≥215 mg CaCo3/g |
| Ferrum (Fe) | ≤10ppm |
| Heavy Metal (Pb) | ≤10ppm |
| PH | 10.5-11.5 |
| NTA | ≤1.0 % |
| Chloride | ≤0.01 % |
| Sulfate | ≤0.05 % |
| ITEMS | SPECIFICATIONS |
| EDTA-4Na | ≥99.0% |
| CHELATE VALUE MgCaCo3/g | ≥234 |
| Ferrum (Fe) | ≤10ppm |
| Heavy Metal (Pb) | ≤10ppm |
| PH | 10.5-11.5 |
| Water Insoluble Substances | ≤0.1﹪ |
| ITEMS | SPECIFICATIONS |
| Content | 39-41.0%MIN |
| CHELATE VALUE MgCaCo3/g | 100MgCaCO:/g MIN |
| Specific Gravity | 1.26-1.35 |
| NTA | 2.0% MAX |
| PH | 11.0-12.0 |
EDTA Tetrasodium Salt for Sale
| Feature | EDTA Solid | EDTA Liquid |
| Solubility | Dissolves in water | Ready to use — fully water-soluble |
| Key Advantage | High active content, lower transport cost, long shelf life | Ready to use, easy to pump and dose, no dust |
| Best For | • Dry powder detergents • Industrial blends • Long-distance export | • Liquid detergents & cleaners • Automated dosing systems • Water treatment injection |
| Choose If | You need maximum active content per kg and prefer dry handling | You want convenience, easy pumping, and no dust in your process |
Highest Chelating Power & Purity: Our Tetrasodium EDTA offers exceptional chelation with a chelant value of ≥220 mg CaCO₃/g and purity ≥99% — effectively binding calcium, magnesium, iron, and other multivalent metal ions across a broad pH range.
Excellent Alkaline Stability: With a 1% solution pH of 10.5–11.5, Tetrasodium EDTA performs best in alkaline conditions (pH ≥8) and remains stable even in hot water and high-temperature processes without decomposition.
Dual-Form Availability: Available in both crystalline powder (≥98%) and 40% liquid solution forms — choose solid for dry blends and long-distance export, or liquid for ready-to-use convenience in automated dosing systems.
Proven Performance as Metal Ion Scavenger: Effectively sequesters Ca²⁺ and Mg²⁺ ions in hard water, preventing scale formation, boosting detergent performance, and inhibiting struvite crystallization in sensitive applications like urinary catheter coatings.
Exceptional Thermal Stability & Safety: Tetrasodium EDTA remains stable in water even at high temperatures without decomposition, and it has low oral toxicity (LD50 >2000 mg/kg), making it safe for industrial, cosmetic, and water treatment applications.
| Feature | Disodium EDTA (EDTA-2Na) | Tetrasodium EDTA (EDTA-4Na) |
| pH (1% Solution) | 4.4 – 5.0 (near neutral) | 10.5 – 11.5 (highly alkaline) |
| Solubility | Soluble in hot water; limited in cold water | Highly soluble in cold and hot water |
| Chelation Strength | Strong binding with Ca²⁺, Mg²⁺, Fe³⁺ | Excellent binding with Ca²⁺, Mg²⁺, and other metal ions |
| Main Applications | • Food preservation • Cosmetics and personal care • Pharmaceuticals • Laboratory reagents | • Industrial cleaning detergents • Water treatment • Textile dyeing • Pulp and paper processing |
What is Tetrasodium EDTA Used for
Industrial & Household Cleaning: Used in heavy-duty detergents, dishwashing liquids, and industrial cleaners to soften hard water, prevent scale, and boost cleaning efficiency by binding calcium and magnesium ions .
Water Treatment: Effectively sequesters metal ions in cooling towers, boilers, and wastewater systems — preventing scale formation, controlling corrosion, and improving system efficiency .
Textile & Dyeing Processes: Removes metal impurities that interfere with dye uptake, ensuring uniform color, brighter shades, and consistent fabric quality during bleaching and dyeing .
Cosmetics & Personal Care: Stabilizes liquid soaps, shampoos, and skin care products by trapping trace metals (iron, copper) that cause discoloration, rancidity, and formula breakdown — even in high-pH formulations .
Metal Cleaning & Electroplating: Used in metal surface treatment to remove oxide layers and scale, and as a stabilizer in electroplating baths to prevent metal ion interference and ensure smooth, uniform deposits .
FAQ of Tetrasodium EDTA
“EDTA” usually refers to the free acid form (poorly soluble in water). Tetrasodium EDTA (EDTA-4Na) is the fully neutralized sodium salt — it dissolves easily in cold water and has a high pH (10.5-11.5), making it ideal for alkaline applications like detergents and industrial cleaners.
Yes, it is considered safe for industrial and household use when handled properly. It has low oral toxicity (LD50 >2000 mg/kg) and is not classified as hazardous under normal use. However, it can cause mild eye and skin irritation — always wear gloves and goggles when handling powder.
Yes, every shipment includes a Certificate of Analysis (CoA) confirming purity, pH, chelation value, and heavy metal limits. SGS certification available upon request.
Yes, we offer free samples of both solid and liquid forms for pre-order testing. Contact us with your application details, and we will send the appropriate grade.
This product is standardly supplied in 25kg bags and 1.25T/IBC Drum. Other packaging options are available to meet specific customer requirements.
Store it in a cool, dry, and well-ventilated area. Keep the container tightly sealed in moisture-proof packaging to maintain product quality.
Tetrasodium EDTA Suppliers - HOO CHEMTEC
HOO CHEMTEC: Your Trusted Partner for Tetrasodium EDTA
We are a direct manufacturer with an annual production capacity exceeding 40,000 metric tons of high-purity Tetrasodium EDTA (EDTA-4Na). Our fully automated facility runs 24/7, ensuring a stable, reliable supply for customers across more than 50 countries worldwide.
Quality You Can Count On: Our Tetrasodium EDTA achieves purity ≥99% with heavy metals below 5 ppm, meeting USP, EP, and industrial-grade standards. Every batch is tested in our ISO 9001-certified lab, and we provide a Certificate of Analysis (CoA) with every shipment. Our facility holds SGS certification, giving you full confidence in product consistency and safety.
Flexible Supply, Global Reach: We export over 2,500 tons of EDTA salts monthly , offering both crystalline powder (≥98%) and 40% liquid solution to match your application. Choose 25kg moisture-proof bags (25 MT per 20ft container) or 1,250kg IBCs (22.5 MT per container) — with 98% on-time delivery and full export documentation, we ensure your supply chain runs smoothly.
Try Before You Buy: We offer free samples for pre-order testing. Our technical team provides free formulation support to help you optimize performance in detergents, water treatment, or industrial cleaning applications.
Choose HOO CHEMTEC for quality Tetrasodium EDTA and a partnership you can trust.
