EDTA di sodium for HPLC
| Formula (Hill): | C10H14N2Na2O8*2 H2O |
| Molar mass: | 372.24 g/mol |
| Bulk density: | ~700 kg/m3 |
| CAS number: | 6381-92-6 |
| HS code: | 29224995 |
| EC number: | 205-358-3 |
| Storage (temperature): | at + 15 ºC to +25 ºC |
| SDS | Available |
| RTECS | AH4410000 |
| Odour: | Odourless |
| Form: | Crystals |
| Color: | White |
| Ph value: | 4 – 5 (50g/I 20 ºC) |
| Solubility in water: | 100 g/l (20 ºC) |
| Melting point: | 110 ºC |
| Thermal decomposition | 255 ºC |
EDTA Disodium for HPLC is a high‑purity, analytical‑grade chelating agent used in pharmaceutical and analytical laboratories for HPLC mobile phase preparation, metal ion sequestration, and controlled buffer systems.
🏭⚗️ Production
Prepared from ultra‑pure disodium EDTA under strictly controlled conditions to minimize trace metals, water content, and other contaminants. Standardized for purity, chelating efficiency, and chemical stability. Supplied in chemically resistant, tightly sealed containers to prevent contamination, moisture uptake, or degradation.
🔬 Properties
A white to off‑white crystalline powder, odorless and highly soluble in water. Strongly chelating, stable under normal laboratory conditions, and non-volatile. It can form complexes with divalent and trivalent metal ions, preventing metal-catalyzed reactions. Store in a cool, dry, well‑ventilated area, protected from moisture and strong oxidizing agents.
🧪 Applications
Used in pharmaceutical and analytical laboratories to prepare HPLC mobile phases, buffer solutions, and metal ion-free systems. Ensures reproducibility in chromatographic separations and prevents metal ion interference in sensitive analyses. Solutions and equipment should be handled to maintain analytical-grade purity.
⚠️ Safety
Generally considered low-toxicity, but may cause mild irritation to eyes, skin, and respiratory tract. Avoid ingestion and prolonged exposure. Use in a well‑ventilated area with appropriate protective equipment including gloves, goggles, and lab coat. Store in a tightly closed, chemically resistant container in a cool, dry, well‑ventilated area away from strong oxidizers and acids.





