EDTA disodium (EDTA-2Na) | 139-33-3
Products Description
Ethylenediaminetetraacetic acid, yakapfupikiswa zvakanyanya seEDTA, is aminopolycarboxylic acid uye yakasimba isina ruvara, inonyungudika mumvura. Yayo conjugate base inonzi ethylenediaminetetraacetate. Inoshandiswa zvakanyanya kunyungudutsa limescale. Kubatsira kwayo kunomuka nekuda kwebasa rayo sehexadentate ("mazino matanhatu") ligand uye chelating agent, kureva kukwanisa kwayo "sequester" maion simbi akadai Ca2 + uye Fe3 +. Mushure mekusungwa neEDTA, maion simbi anoramba ari mumhinduro asi anoratidza kuderera kwekuitazve. EDTA inogadzirwa semunyu akati wandei, kunyanya disodium EDTA uye calcium disodium EDTA.
Tsanangudzo
| ITEM | STANDARD |
| Chitarisiko | White crystalline powder |
| Identification | Psa bvunzo |
| Assay (C10H14N2Na2O8.2H2O) | 99.0% ~ 101.0% |
| Chloride (Cl) | =< 0.01% |
| Sulfate (SO4) | =<0.1% |
| pH (1%) | 4.0- 5.0 |
| Nitrilotriacetic asidhi | =<0.1% |
| Calcium (Ca) | Negative |
| Ferrum (Fe) | =< 10 mg/kg |
| Kutungamira (Pb) | =<5 mg/kg |
| Arsenic (As) | =< 3 mg/kg |
| Mercury (Hg) | =< 1 mg/kg |
| Heavy metal (sePb) | =< 10 mg/kg |
