Synonyms
Tetrasodium EDTA, Tetrahydrate;
Ethylenediaminetetraacetic acid, tetrasodium salt;
Tetrasodium EDTA, Dihydrate
CAS No. 64-02-8
Molecular Formula: C10H12N2Na4O8·4H2O
Molecular Weight: 452.20
Specifications:
Appearance: white crystalline powder
Assay (Na4EDTA·4H2O): ≥ 99.0%
pH value (50g/L @ 25℃): 10.5 - 12.5
Heavy Metal (as Pb): ≤ 10 ppm
Iron (as Fe): ≤ 10 ppm
Chloride (as Cl-): ≤ 0.01%
Sulfate (as SO42-): ≤ 0.05%
Chelating Value, mgCaCO3/g: ≥ 220
EDTA and its sodium salts are strong chelating agents and are very effective at preventing the deleterious effects of heavy metal ions like iron, manganese or copper. It exhibits excellent ability to dissolve various types of scale and can be described as a true all-around chelating agent.
Main applications:
• Soap/Deterge…