EDTA-4Na
name：Ethylene diamine tetraacetic acid tetrasodium salt
Formula：C10H12N2O8Na4•4H2O
M.W：M=452.23
CAS NO.：13254-36-4
Characters：White crystalline powder. Soluble in water. Chelate with a variety of metal ions.
Usage：As a chelating agent, EDTA-4Na can be widely used in industrial cleaning, daily chemicals, paper and textile, trace element fertilizer, photographic chemistry, printing ink, medicine, food, polymerization reaction, chemical coating etc.
Specification：
Testing Items | Specifications | |
Quality product | Top-quality product | |
Content % | ≥99.0% | ≥99.5% |
Chloride（Cl- ）% | ≤ 0.02% | ≤ 0.01% |
Sulfate（SO42-）% | ≤ 0.05% | ≤ 0.02% |
Heavy Metal（Pb）% | ≤ 0.001% | ≤ 0.001% |
Fer rum（Fe）% | ≤ 0.001% | ≤ 0.001% |
Chelating Value ( mg(CaCO3 )/g ) | ≥ 220 | ≥ 220 |
PH Value（50g/L:25℃） | 10.5-11.5 | 10.5-11.5 |
Apperance | White or OFF-white Granular Crystalline powder | White or OFF-white Granular Crystalline powder |
Bulk density | 700-950 | 700-950 |
NTA % | ≤ 1 | ≤ 0.1 |