Disodium EDTA (6381-92-6)
1. Basic Information
Chemical Name: Disodium EDTA
Chinese Aliases: 乙二胺四乙酸二钠; 依地酸二钠; EDTA二钠; EDTA 二钠盐; EDTA-2Na
English Name: Disodium edetate dihydrate
Molecular Formula: C10H14N2O8Na2•2H2O
Molecular Weight: 372.24
CAS Number: 6381-92-6
EINECS Number: 613-386-6
Appearance: White crystalline powder or granules, easily soluble in water
2. Technical Parameters
| Item | Standard | Industrial Grade | Daily Chemical Grade |
|------|---------|----------------|------------------|
| Content | 99.00% Min. | 99.50% Min. |
| Chloride (Cl-) % | 0.01% Max. | 0.01% Max. |
| Sulfate (SO42-) % | 0.05% Max. | 0.05% Max. |
| Heavy Metals (Pb) % | 0.001% Max. | 0.001% Max. |
| Iron (Fe) % | 0.001% Max. | 0.001% Max. |
| Chelating Value (mgCaCO3/g) | 256 Min. | 267 Min. |
| pH (50g/L, 25℃) | 4.0-5.0 | 4.0-5.0 |
| NTA % | - | 0.1% Max. |
| Appearance | White crystalline powder | White crystalline powder |
(The above parameters are for reference only; the final values should be based on the factory inspection report.)
3. Packaging Specifications
The standard packaging is a 25kg woven bag lined with a polyethylene plastic bag. Custom ton bags or small packages can also be made according to customer requirements.