Ethylene Diamine Tetraacetic Acid Tetrasodium (EDTA Na4)
Khoom Muag: Ethylene Diamine Tetraacetic Acid Tetrasodium (EDTA Na)4)
CAS#: 64-02-8
Cov mis: C10H12N2O8Na4·4H2O
Cov Qauv Qauv:
Siv: Siv ua cov neeg sawv cev ua kom dej mos, cov tshuaj catalysts ntawm cov roj hmab hluavtaws, luam ntawv thiab zas xim adjuvants, cov tshuaj ntxuav adjuvants
Cov Lus Qhia:
| Khoom | Tus Qauv |
| Qhov tsos | Dawb crystalline hmoov |
| Kev Ntsuas | ≥99.0% |
| Cov hmoov txhuas (Pb) | ≤0.001% |
| Hlau (Fe) | ≤0.001% |
| Chloride (Cl) | ≤0.01% |
| Sulfate (SO4)4) | ≤0.05% |
| PH (1% kua) | 10.5-11.5 |
| Tus nqi chelating | ≥220mgcaco3/g |
| NTA | ≤1.0% |
Cov txheej txheem khoom:
Nws tau txais los ntawm cov tshuaj tiv thaiv ntawm ethylenediamine nrog chloroacetic acid, lossis los ntawm cov tshuaj tiv thaiv ntawm ethylenediamine nrog formaldehyde thiab sodium cyanide.
Nta:
EDTA 4NA yog hmoov dawb crystalline muaj 4 dej siv lead ua, yooj yim soluble hauv dej, cov kua aqueous yog alkaline, me ntsis soluble hauv cov organic solvents xws li ethanol, tuaj yeem poob ib feem lossis tag nrho cov dej siv lead ua ntawm qhov kub siab.
Cov ntawv thov:
EDTA 4NA yog ib qho tshuaj chelator hlau ion uas siv dav heev.
1. Nws siv tau rau hauv kev lag luam textile rau kev zas xim, txhim kho xim, txhim kho xim thiab ci ntawm cov ntaub dyed.
2. Siv ua additive, activator, metal ion masking agent thiab activator hauv kev lag luam roj hmab butadiene.
3. Nws siv tau rau hauv kev lag luam acrylic qhuav kom txo cov hlau cuam tshuam.
4. EDTA 4NA kuj tseem siv tau rau hauv cov tshuaj ntxuav tes kom txhim kho qhov zoo ntawm kev ntxuav thiab kev ntxuav.
5. Siv ua cov tshuaj ua kom dej mos, cov tshuaj lim dej, siv rau kev kho dej kom zoo.
6. Siv ua cov roj hmab hluavtaws catalyst, acrylic polymerization terminator, luam ntawv thiab dyeing auxiliaries, thiab lwm yam.
7. Nws kuj siv rau titration hauv kev tshuaj ntsuam xyuas tshuaj, thiab tuaj yeem titrate ntau yam hlau ions kom raug.
8. Ntxiv rau cov kev siv saum toj no, EDTA 4NA kuj tseem siv tau rau hauv kev lag luam tshuaj, tshuaj txhua hnub, kev ua ntawv thiab lwm yam lag luam.
