EDTA Disodium (EDTA-2Na) | 139-33-3
Awọn ọja Apejuwe
Ethylenediaminetetraacetic acid, ti a kukuru pupọ bi EDTA, jẹ aminopolycarboxylic acid ati awọ ti ko ni awọ, omi-tiotuka ti o lagbara. Ipilẹ conjugate rẹ ni orukọ ethylenediaminetetraacetate. O ti wa ni o gbajumo ni lilo lati tu limescale. Iwulo rẹ dide nitori ipa rẹ bi hexadentate (“ehin-toothed mẹfa”) ligand ati oluranlowo chelating, ie agbara rẹ lati “sequester” awọn ions irin bii Ca2+ ati Fe3+. Lẹhin ti a dè nipasẹ EDTA, awọn ions irin wa ni ojutu ṣugbọn ṣe afihan ifasilẹ ti o dinku. EDTA jẹ iṣelọpọ bi awọn iyọ pupọ, paapaa disodium EDTA ati kalisiomu disodium EDTA.
Sipesifikesonu
| Nkan | ITOJU |
| Ifarahan | Funfun okuta lulú |
| Idanimọ | Kọja idanwo |
| Ayẹwo (C10H14N2Na2O8.2H2O) | 99.0% ~ 101.0% |
| Kloride (Cl) | = <0.01% |
| Sulfate (SO4) | = <0.1% |
| pH (1%) | 4.0-5.0 |
| Nitrilotriacetic acid | = <0.1% |
| kalisiomu (Ca) | Odi |
| Ferrum (Fe) | = <10 mg/kg |
| Asiwaju (Pb) | =< 5 mg/kg |
| Arsenic (Bi) | =< 3 mg/kg |
| Makiuri (Hg) | = <1 mg/kg |
| Awọn irin ti o wuwo (bii Pb) | = <10 mg/kg |
