DMEA yog dab tsi?
N,N-dimethylethanolamine(DMEA, CAS 108-01-0, molecular formula C4H11NO) yog ib qho organic compound uas muaj ob pawg tertiary amino thiab pawg hydroxyl, uas muab cov tshuaj lom neeg ntawm ob qho tib si cawv thiab amines. Nws yog cov kua xim tsis muaj xim nrog cov ntxhiab tsw me me, miscible nrog dej thiab nrog ntau yam organic solvents xws li ether, acetone thiab aromatic hydrocarbons.
1. Cov khoom ntawm DMEA
Lub cev muaj zog
| Khoom | Tus nqi |
|---|---|
| Cov mis mos molecular | C4H11 Nr |
| CAS Nr. | 108-01-0 |
| Qhov ntom | 0.888g / cm³ (20 degree) |
| Boiling point | 134.6 hli |
| Flash point | Txog 40 degree |
| Solubility | Miscible nrog dej, ether, acetone, aromatic hydrocarbons |
Chemical Properties
DMEA molecule muaj ib pawg hydroxyl thiab ib pawg amino, yog li nws muaj cov tshuaj lom neeg ntawm cawv thiab amines. Nws tuaj yeem hnov mob nrog cov kua qaub los tsim cov ntsev, thiab tuaj yeem cuam tshuam nrog aldehydes thiab ketones los ua Schiff puag. Tsis tas li ntawd, DMEA tuaj yeem dhau los ua ntau yam kev cuam tshuam ntawm cov organic synthesis, xws li alkylation, acylation thiab halogenation.
2. Daim ntawv thov ntawm DMEA
Resin raw khoom:DMEA tuaj yeem siv los ua cov khoom siv raw thiab koom nrog hauv kev sib xyaw thiab ua cov khoom siv.
Cov ntaub ntawv raw rau tshuaj, dyes thiab xim kuab tshuaj:DMEA yog siv los ua ke ntau yam tshuaj intermediates, dyes thiab xim xim, thiab ua cov xim hnyav.
Kev npaj xim:DMEA tuaj yeem siv los npaj cov dej- cov xim dilutable, txhim kho kev ua haujlwm thiab cov xim zoo nkauj (nws cuam tshuam cov kua qaub ntawm cov dej hauv cov resins thiab muab cross- cov chaw sib txuas).
Polyurethane ua npuas ncauj catalyst:nyob rau hauv polyurethane ua npuas ncauj ntau lawm, DMEA tuaj yeem siv los ua tus pabcuam catalyst thiab reactive catalyst nyob rau hauv cov txheej txheem synthesis thiab foaming. Nws muaj kev ua haujlwm catalytic tsawg tab sis muaj kev cuam tshuam me ntsis ntawm cov npuas dej nce thiab cov tshuaj tiv thaiv gel, thiab tuaj yeem ua rau cov kab mob hauv cov khoom ua npuas dej, tswj kev ruaj ntseg ntawm lwm cov organic amines hauv lub cev. DMEA kuj pheej yig thiab tshwj xeeb tshaj yog zoo thaum siv nrog triethylenediamine, txo cov nqi tsim khoom.
Lwm yam kev siv:synthesis ntawm bis (dimethylaminoethyl) ether, antistatic agents, av conditioners, conductive cov ntaub ntawv, ntawv additives thiab flocculants; nws tseem tuaj yeem siv los ua tus neeg saib xyuas dej kom tiv thaiv boiler corrosion.