EDTA Disodium (EDTA-2Na) | 139-33-3
Bayanin Samfura
Ethylenediaminetetraacetic acid, wanda aka fi sani da EDTA, aminopolycarboxylic acid ne kuma mara launi, mai narkewar ruwa. Ginshikin haɗin gwiwa ana kiransa ethylenediaminetetraacetate. Ana amfani da shi sosai don narkar da lemun tsami. Amfaninsa ya taso saboda matsayinsa na hexadentate ("hakori shida") ligand da wakili na chelating, watau ikonsa na "sequester" ions karfe kamar Ca2+ da Fe3+. Bayan an ɗaure ta da EDTA, ions karfe suna kasancewa cikin mafita amma suna nuna raguwar amsawa. Ana samar da EDTA azaman gishiri da yawa, musamman disodium EDTA da calcium disodium EDTA.
Ƙayyadaddun bayanai
| ITEM | STANDARD |
| Bayyanar | Farin crystalline foda |
| Ganewa | Wuce gwaji |
| Assay (C10H14N2Na2O8.2H2O) | 99.0% ~ 101.0% |
| Chloride (Cl) | = <0.01% |
| Sulfate (SO4) | = <0.1% |
| pH (1%) | 4.0-5.0 |
| Nitrilotriacetic acid | = <0.1% |
| Calcium (Ca) | Korau |
| Ferrum (Fe) | = <10 mg/kg |
| Jagora (Pb) | = <5 mg/kg |
| Arsenic (AS) | = <3 mg/kg |
| Mercury (Hg) | = <1 mg/kg |
| Karfe masu nauyi (kamar Pb) | = <10 mg/kg |
