EDTA tetrasodium ntsev (EDTA 4NA), CAS # 64-02-8
CAS Nr .: 64-02-8
MolecularFormula: C10H12N2O8Na4· 4 H2O
Kev Siv: Siv ua cov dej-softening agents, catalysts ntawm hluavtaws roj hmab, luam ntawv thiab dyeing adjuvants, detergent adjuvants
Specification:
Cov tsos mob: Dawb hmoov los yog dawb crystalline hmoov
tsw: Tsis muaj ntxhiab
Purity: ≥99.0%
Chloride: ≤0.01%
Sulfate: ≤0.05%
Hlau (Fe): ≤0.001%
Cov hlau hnyav (Pb): ≤0.001%
Chelate tus nqi (mgCaCO3 / g): ≥220
PH: 10.5-11.5
Melting point:> 300 ℃
Ntim: 25kg / hnab
Solubility: EDTA 4NA yog soluble hauv dej thiab kua qaub, insoluble hauv cawv thiab benzene.
Stability: ruaj khov.Incompatible nrog muaj zog oxidizing neeg sawv cev.
Cia tej yam kev mob: Khaws rau hauv qhov chaw txias, qhov cua thiab qhuav, tiv thaiv los ntawm tshav ntuj thiab los nag.
Cov txheej txheem khoom:
Nws yog tau los ntawm cov tshuaj tiv thaiv ntawm ethylenediamine nrog chloroacetic acid, los yog los ntawm cov tshuaj tiv thaiv ntawm ethylenediamine nrog formaldehyde thiab sodium cyanide.
Nta:
EDTA 4NA yog dawb crystalline hmoov muaj 4 siv lead ua dej, yooj yim soluble nyob rau hauv dej, aqueous tov yog alkaline, me ntsis soluble nyob rau hauv cov organic solvents xws li ethanol, yuav poob ib feem los yog tag nrho cov siv lead ua dej ntawm kub.
Daim ntawv thov:
EDTA 4NA yog siv dav siv hlau ion chelator.
1. Nws tuaj yeem siv rau hauv kev lag luam textile rau dyeing, xim txhim kho, txhim kho xim thiab ci ntsa iab ntawm dyed fabrics.
2. Siv los ua additive, activator, hlau ion masking tus neeg saib xyuas thiab activator hauv kev lag luam roj hmab butadiene.
3. Nws tuaj yeem siv rau hauv kev lag luam acrylic qhuav kom offset hlau cuam tshuam.
4. EDTA 4NA kuj tseem siv tau rau hauv cov kua xab npum los txhim kho kev ntxuav kom zoo thiab ntxuav tau zoo.
5. Siv los ua dej softener, dej purifier, siv rau kev kho dej zoo.
6. Siv los ua hluavtaws roj hmab catalyst, acrylic polymerization terminator, luam ntawv thiab dyeing auxiliaries, thiab lwm yam.
7. Nws kuj yog siv rau titration hauv tshuaj ntsuam xyuas, thiab tuaj yeem raug titrate ntau yam hlau ions.
8. Ntxiv rau cov kev siv saum toj no, EDTA 4NA kuj tseem tuaj yeem siv rau hauv kev lag luam tshuaj, tshuaj niaj hnub, ntawv ua thiab lwm yam lag luam.
