Monoethanolamine (2-aminoethanol ethanolamine)
| Cov tshuaj lom neeg | Ethanolamine yog ib hom amino alcohol uas muaj viscous hygroscopic thiab muaj ob pawg amine thiab cawv. Nws muaj ntau yam nyob hauv lub cev thiab yog ib feem ntawm lecithin. Nws muaj ntau yam kev siv hauv kev lag luam. Piv txwv li, nws siv tau rau hauv kev tsim cov tshuaj ua liaj ua teb xws li ammonia thiab kev tsim cov tshuaj thiab cov tshuaj ntxuav tes. Nws kuj siv tau ua surfactant, fluorimetric reagent thiab tshem tawm CO2 thiab H2S. Hauv kev lag luam tshuaj, ethanolamine siv ua Vascular Sclerosing agent. Nws kuj muaj cov khoom antihistamine, uas txo cov tsos mob tsis zoo los ntawm H1-receptor binding. | |
| Cov ntawv thov | Ethanolamine siv ua ib yam khoom siv nqus kom tshem tawm cov pa roj carbon dioxide thiab hydrogen sulfide ntawm cov roj av thiab lwm yam pa roj, ua ib yam khoom siv ua kom cov tawv mos, thiab ua ib yam khoom siv tawg rau cov tshuaj ua liaj ua teb. Ethanolamine kuj tseem siv rau hauv cov tshuaj pleev xim, cov tshuaj pleev plaub hau, cov tshuaj emulsifiers, thiab hauv kev tsim cov tshuaj surfactant (Beyer et al 1983; Mullins 1978; Windholz 1983). Ethanolamine raug tso cai rau hauv cov khoom siv rau kev tsim khoom, kev ua, lossis kev ntim khoom noj (CFR 1981). Ethanolamine dhau los ua cov tshuaj tiv thaiv ntawm cov amines thawj zaug thiab cov cawv. Ob qho tshuaj tiv thaiv tseem ceeb hauv kev lag luam ntawm ethanolamine suav nrog kev tiv thaiv nrog carbon dioxide lossis hydrogen sulfide kom ua rau cov ntsev uas yaj tau hauv dej, thiab kev tiv thaiv nrog cov roj fatty acids ntev los tsim cov xab npum ethanolamine tsis muaj zog (Mullins 1978). Cov tshuaj ethanolamine hloov pauv, xws li xab npum, siv dav dav ua cov emulsifiers, thickeners, wetting agents, thiab detergents hauv cov tshuaj pleev ib ce (suav nrog cov tshuaj ntxuav tawv nqaij, creams, thiab lotions) (Beyer et al 1983). | |
| Lub cev nqaij daim tawv | meej, tsis muaj xim los yog daj ntseg | |
| Lub neej txee | Raws li peb qhov kev paub dhau los, cov khoom tuaj yeem khaws cia rau 12lub hlis txij li hnub xa khoom yog tias khaws cia rau hauv cov thawv kaw nruj nreem, tiv thaiv kom tsis txhob muaj lub teeb thiab cua sov thiab khaws cia rau qhov kub ntawm 5 -30°C. | |
| Tcov yam ntxwv ib txwm muaj
| Kub Kub | 170 ° C (lit.) |
| Melting point t | 10-11 ° C (lit.) | |
| Qhov Ceev | 1.012 g/mL ntawm 25 °C (lit.) | |
| refractive index | n20/D 1.454(lit.) | |
| Fp | 200 °F | |
| Siab ntawm cov pa dej | 0.2 hli Hg (20 °C) | |
| LogP | -2.3--1.91 ntawm 25 ℃ | |
| pka | 9.5 (ntawm 25 ℃) | |
| PH | 12.1 (100g/l, H2O, 20℃) | |
Kev Nyab Xeeb
Thaum siv cov khoom no, thov ua raws li cov lus qhia thiab cov ntaub ntawv muab rau hauv daim ntawv qhia kev nyab xeeb thiab ua raws li kev tiv thaiv thiab kev tu cev huv si hauv chaw ua haujlwm kom txaus rau kev siv cov tshuaj lom neeg.
Lus Cim
Cov ntaub ntawv muaj nyob rau hauv tsab ntawv tshaj tawm no yog raws li peb txoj kev paub thiab kev paub tam sim no. Vim muaj ntau yam uas yuav cuam tshuam rau kev ua thiab kev siv peb cov khoom, cov ntaub ntawv no tsis pab cov neeg ua haujlwm los ntawm kev ua lawv tus kheej txoj kev tshawb nrhiav thiab kev sim; cov ntaub ntawv no tsis txhais tau tias muaj kev lees paub txog qee yam khoom, lossis qhov tsim nyog ntawm cov khoom rau lub hom phiaj tshwj xeeb. Txhua cov lus piav qhia, cov duab kos, cov duab, cov ntaub ntawv, cov feem pua, qhov hnyav, thiab lwm yam uas tau muab rau hauv no yuav hloov pauv yam tsis muaj cov ntaub ntawv ua ntej thiab tsis suav tias yog qhov zoo ntawm cov khoom raws li daim ntawv cog lus. Qhov zoo ntawm cov khoom raws li daim ntawv cog lus tsuas yog los ntawm cov lus hais hauv cov lus qhia tshwj xeeb ntawm cov khoom. Nws yog lub luag haujlwm ntawm tus neeg tau txais peb cov khoom kom ntseeg tau tias txhua txoj cai thiab cov kev cai lij choj thiab kev cai lij choj uas twb muaj lawm raug ua raws li.
