EDTA Disodium (EDTA-2Na) | 139-33-3
Oloa Fa'amatalaga
Ethylenediaminetetraacetic acid, fa'apu'upu'u lautele o le EDTA, o se aminopolycarboxylic acid ma e leai se lanu, solu vai. O lona fa'avae fa'atasi e ta'ua ethylenediaminetetraacetate. E masani ona faʻaaogaina e faʻafefe ai limescale. O lona aoga e tula'i mai ona o lana matafaioi o se ligand ma chelating agent hexadentate ("ono-nifo"), e pei o lona gafatia e "sequester" ion uamea e pei o Ca2+ ma Fe3+. A uma ona fusifusia e le EDTA, e tumau pea iona u'amea i le vaifofo ae fa'aalia le fa'aitiitia o le gaoioi. EDTA e gaosia e pei o le tele o masima, aemaise le disodium EDTA ma le calcium disodium EDTA.
Fa'amatalaga
| MEA | TULAGA |
| Fa'aaliga | Pa'epa'e tioata pa'epa'e |
| Fa'ailoaga | Pasia le suega |
| Su'ega (C10H14N2Na2O8.2H2O) | 99.0% ~ 101.0% |
| Klorida (Cl) | =< 0.01% |
| Sulfate (SO4) | =< 0.1% |
| pH (1%) | 4.0- 5.0 |
| Nitrilotriacetic acid | =< 0.1% |
| Calcium (Ca) | Le lelei |
| Ferrum (Fe) | =< 10 mg/kg |
| Ta'ita'i (Pb) | =<5 mg/kg |
| Arsenic (As) | =<3 mg/kg |
| Mercury (Hg) | =< 1 mg/kg |
| Metala mamafa (pei o le Pb) | =< 10 mg/kg |
