EDTA Disodium (EDTA-2Na) | 139-33-3
Huahana Huahana
ʻO ka ʻakika Ethylenediaminetetraacetic, i hoʻopau nui ʻia ʻo EDTA, he waikawa aminopolycarboxylic a me ka paʻa ʻole kala ʻole, hiki ke hoʻoheheʻe ʻia i ka wai. Ua kapa ʻia kona kumu conjugate ethylenediaminetetraacetate. Hoʻohana nui ia e hoʻoheheʻe i ka limescale. Hiki mai kona pono ma muli o kona kuleana ma ke 'ano he hexadentate ("six-toothed") ligand a chelating agent, 'o ia ho'i kona hiki ke "ho'oku'u" i nā iona metala e like me Ca2+ a me Fe3+. Ma hope o ka hoʻopaʻa ʻia ʻana e EDTA, noho mau nā ion metala i ka hoʻonā akā hōʻike i ka emi ʻana o ka hana. Hana ʻia ʻo EDTA ma ke ʻano he mau paʻakai, ʻo ia hoʻi ka disodium EDTA a me ka calcium disodium EDTA.
Hōʻike
| MEA | KANAWAI |
| Ka nana aku | ʻO ka pauka kristal keʻokeʻo |
| ʻIkepili | Holo i ka ho'āʻo |
| ʻAi (C10H14N2Na2O8.2H2O) | 99.0% ~ 101.0% |
| Klorida (Cl) | =< 0.01% |
| Sulphate (SO4) | =< 0.1% |
| pH (1%) | 4.0- 5.0 |
| ʻAka Nitrilotriacetic | =< 0.1% |
| Kaluma (Ca) | ʻinoʻino |
| Ferrum (Fe) | =< 10 mg/kg |
| Ke kēpau (Pb) | =< 5 mg/kg |
| Arsenic (As) | =< 3 mg/kg |
| Mercury (Hg) | =< 1 mg/kg |
| Nā metala kaumaha (e like me Pb) | =< 10 mg/kg |
