I-EDTA Disodium (EDTA-2Na) | 139-33-3
Incazelo Yemikhiqizo
I-Ethylenediaminetetraacetic acid, efushaniswe kabanzi ngokuthi i-EDTA, iyi-aminopolycarboxylic acid futhi iqinile engenambala, encibilika emanzini. Isisekelo sayo se-conjugate sibizwa nge-ethylenediaminetetraacetate. Isetshenziswa kabanzi ukuncibilikisa i-limescale. Ukuba wusizo kwayo kuvela ngenxa yendima yayo njenge-hexadentate ("amazinyo ayisithupha") i-ligand kanye ne-chelating ejenti, okungukuthi ikhono layo "lokukhipha" ama-ion ensimbi afana ne-Ca2+ ne-Fe3+. Ngemva kokuboshwa yi-EDTA, ama-ion ensimbi ahlala esisombululo kodwa abonisa ukusebenza kabusha okunciphile. I-EDTA ikhiqizwa njengosawoti omningi, ikakhulukazi i-disodium EDTA ne-calcium disodium EDTA.
Ukucaciswa
| ITEM | IZINGA |
| Ukubukeka | I-crystalline powder emhlophe |
| Ukuhlonza | Phasa ukuhlolwa |
| I-Assay (C10H14N2Na2O8.2H2O) | 99.0% ~ 101.0% |
| I-Chloride (Cl) | =< 0.01% |
| I-Sulphate (SO4) | =< 0.1% |
| i-pH (1%) | 4.0- 5.0 |
| I-Nitrilotriacetic acid | =< 0.1% |
| I-calcium (Ca) | Okubi |
| I-Ferrum (Fe) | =< 10 mg/kg |
| Ukuhola (Pb) | =< 5 mg/kg |
| I-Arsenic (As) | =< 3 mg/kg |
| I-Mercury (Hg) | =< 1 mg/kg |
| Izinsimbi ezisindayo (njenge-Pb) | =< 10 mg/kg |
