Ethyl Acetate (Ethyl Ethanoate) yog dab tsi?
Ethyl acetate (ethyl ethanoate) yog ceev ceev -evaporating organic solvent dav siv nyob rau hauv coatings, nplaum, tshuaj, luam ntawv inks, thiab extraction txheej txheem vim nws tsis tshua muaj toxicity, muaj zog solvency, thiab boiling point ntawm kwv yees li 77.1 degree.
Nws yog cov kua uas tsis muaj xim nrog lub qab zib, txiv hmab txiv ntoo tsw thiab cov tshuaj formula C₄H₈O₂. Ethyl acetate feem ntau yog tsim los ntawm esterification cov tshuaj tiv thaiv ntawm ethanol thiab acetic acid. Piv nrog rau ketone cov kuab tshuaj xws li acetone, ethyl acetate feem ntau evaporates qeeb dua, muab cov yeeb yaj kiab zoo dua nyob rau hauv cov txheej txheem thiab cov inks.
Kev lag luam thoob ntiaj teb kev thov rau ethyl acetate tseem nce ntxiv hauv cov haujlwm xws li kev ntim khoom yooj yim, txheej txheej, thiab cov tshuaj nruab nrab vim yog VOC cov cai nruj dua thiab qhov kev thov nce ntxiv rau siab -kev ua haujlwm ntawm EA hnyav hauv kev tsim khoom.
Chemical Formula thiab Molecular Structure ntawm Ethyl Acetate
Cov tshuaj formula ntawm ethyl acetate yog CH₃COOCH₂CH₃, thiab C₄H₈O₂ yog nws cov mis condensed. Ethyl acetate, tseem hu ua ethyl ethanoate, feem ntau hu ua EtOAc. Qhov hnyav molecular ntawm ethyl acetate yog 88.11 g / mol. Ethyl acetate yog ib qho ester tsim thaum pawg hydroxyl ntawm acetic acid hloov los ntawm ib pawg ethoxy.
Cov khoom ntawm Ethyl Acetate (Ethyl Ethanoate)
Formula
Ethyl acetate yog cov organic compound nrog cov tshuaj formula C₄H₈O₂, muaj plaub carbon atoms, yim hydrogen atoms, thiab ob atoms oxygen. Cov qauv ntawm ethyl acetate yog cov ester, tsim los ntawm cov tshuaj tiv thaiv ntawm ethanol (ethylalcohol) thiab acetic acid nyob rau hauv cov txheej txheem hu ua esterification. Nws cov qauv molecular muaj ib pawg ethyl (C₂H₅) txuas rau pawg acetate (COO), uas muab nws cov yam ntxwv zoo.
Boiling Point
CovBoiling point ntawm Ethyl Acetateyog 77.1℃(170.78℃F). Cov cuab yeej no ua rau nws muaj qhov hnyav hnyav uas evaporates sai, uas yog vim li cas nws yog siv rau hauv cov ntawv thov kom evaporation sai, xws li hauv cov xim, coatings, thiab cov nplaum.
Melting Point
Covmelting point ntawm ethyl acetateyog li ntawm -83.6 degree, yog li nws nyob twj ywm kua hauv ib txwm muaj thiab tsis khov hauv kev cia lossis thauj, ua rau nws muaj qhov hnyav hnyav rau cov txheej, nplaum, thiab tshuaj.
Solubility
Lub solubility ntawm ethyl acetate suav nrog kev txwv tsis pub miscibility hauv dej thiab zoo solubility hauv cov kuab tshuaj organic xws li ethanol thiab ether, ua rau nws muaj txiaj ntsig zoo rau kev rho tawm thiab soluble ntau yam khoom.
Qhov ntom
Qhov ceev ntawm Ethyl Acetate yog kwv yees li 0.902 g / cm³ ntawm 20 degree. Qhov tsis tshua muaj qhov ntom ntom no ua rau nws muaj peev xwm evaporate sai thiab siv tau zoo hauv ntau daim ntawv thov xws li cov kuab tshuaj thiab txheej txheej.
Polarity
Lub polarity ntawm ethyl acetate yog nruab nrab, nrog lub dielectric tas li ntawm 6.0 thiab lub sijhawm dipole ntawm ~ 1.78 D, ua rau nws tsawg dua polar dua acetone (20.7) tab sis ntau dua polar dua hexane (1.9).
Flash Point
Lub flash point ntawm Ethyl Acetate yog −4℃(24.8℃F). Qhov taw tes qis qis no yog vim li cas Ethyl Acetate yog cov nplaim taws heev thiab yuav tsum tau saib xyuas, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig uas muaj qhov hluav taws kub.
Vapor Siab
Lub vapor siab ntawm ethyl acetate yog hais txog 73 mmHg ntawm 20 degree, ua rau nws muaj qhov kub thiab txias heev uas yuav tsum tau muaj qhov cua zoo, kaw cia, thiab zam qhov cua sov lossis qhov hluav taws kub thaum tuav.
Kev siv ntawm Ethyl Acetate (Ethyl Ethanoate)
Paints & Coatings
Ethyl acetate nyob rau hauv cov txheej txheej yog dav siv vim nws yog ib qho tseem ceeb hnyav nyob rau hauv lacquers, varnishes, thiab industrial coatings, muab ceev kom qhuav, txhim kho adhesion, thiab ruaj tiav nyob rau hauv tsheb, rooj tog, thiab tiv thaiv daim ntaub ntawv.
Printing Inks & Ntim
Ethyl acetate nyob rau hauv luam ntawv number case yog dav siv nyob rau hauv flexographic thiab gravure printing, qhov twg ceev evaporation pab ua kom ntse, smudge -dawb prints rau ntim, ntawv, thiab cov ntawv xov xwm, nrog rau cov zaub mov- qib ntim nrog huv si, residue - ua haujlwm dawb. Ethyl acetate nyob rau hauv cov xim pab txhim kho kev ntws thiab kev tsim cov yeeb yaj kiab, ua rau nws tseem ceeb hauv cov txheej txheem xim niaj hnub kom qhuav sai thiab du, siab - cov txheej txheem zoo.
Adhesives & Sealants
Ethyl acetate hnyav nyob rau hauv cov nplaum yog ib qho tseem ceeb rau kev ua tiav kev sib raug zoo ntawm kev sib raug zoo thiab cov viscosity kom zoo, txhawb kev siv hauv cov ntaub ntawv tsim kho, kev sib dhos tsheb, thiab cov sealants.
Pharmaceuticals
Ethyl acetate nyob rau hauv kws tshuaj feem ntau yog siv los ua ib qho kev rho tawm thiab ua cov kuab tshuaj, pab cais cov khoom xyaw nquag rau cov tshuaj xws li tshuaj tua kab mob, vitamins, thiab lwm yam organic compounds.
Raws li kev lag luam ethyl acetate tsum,Tianjin Gnee Biotech Co., Ltd.ua kom muaj kev sib raug zoo thiab txhim khu kev qha rau cov tuam txhab uas xav tau siab - cov kuab tshuaj ua tau zoo.
Yog vim li cas Ethyl Acetate yog ib tug nrov Industrial Solvent?
Ethyl ethanoate yog nrov vim nws muab qhov sib npaug ntawm lub zog hnyav, tus nqi evaporation, tus nqi ua haujlwm, thiab qis toxicity piv nrog ntau cov tshuaj tsw qab thiab cov tshuaj chlorinated.
Ib qho zoo dua yog nws qhov nruab nrab evaporation ceev. Acetone evaporates sai heev thiab tej zaum yuav ua rau cov txheej txheem tsis xws li blushing, thaum butyl acetate evaporates qeeb qeeb thiab nce lub sij hawm ziab. Ethyl acetate zaum ntawm ob cov kuab tshuaj no, ua rau nws tsim nyog rau ntau hom kev lag luam.
Lwm qhov tseem ceeb yog kev ua raws li VOC. Ntau lub tuam txhab siv ethyl acetate hauv qis -VOC txheej txheej vim nws tuaj yeem txo qhov cuam tshuam ib puag ncig thaum tswj kev tsim khoom.
Nws cov ntxhiab tsw me me thiab qis toxicity profile kuj ua rau nws nyiam nyob rau hauv kev lag luam thiab zaub mov -txog cov txheej txheem rho tawm uas hnyav hnyav yog qhov tseem ceeb.
Ethyl Acetate vs Lwm cov kuab tshuaj
Ethyl acetate ua ke nruab nrab-evaporation ceev, nruab nrab polarity, thiab dav kev lag luam sib raug zoo, ua rau nws muaj ntau yam tshaj li ceev ceev -evaporating acetone, qeeb dua - ziab butyl acetate, thiab siab dua - ntxhiab MEK nyob rau hauv ntau txheej thiab daim ntaub nplaum.
| Solvent | Boiling Point | evaporation ceev | Polarity | Daim ntawv thov |
|---|---|---|---|---|
| Ethyl Acetate | 77.1 degree | Nruab nrab- nrawm | Nruab nrab | Coatings, inks, adhesives |
| Acetone | 56 degree | Ceev heev | Siab | Ntxuav, ceev- cov txheej txheej qhuav |
| MEK | 7 9,6d | Ceev ceev | Nruab nrab -High | Muaj txheej txheej |
| Butyl Acetate | 126 degree | qeeb | Tsawg- Nruab nrab | Automotive txheej |
Piv nrog rau acetone, ethyl ethanoate muaj cov dej ntws zoo dua thiab qib hauv cov txheej txheem vim nws qhov qis dua evaporation. Piv nrog MEK, nws muaj cov ntxhiab tsw me me thiab zoo dua nyob rau hauv qee qhov kev tswj hwm. Piv nrog rau butyl acetate, nws muab kev ziab sai dua, pab txhim kho kev ua haujlwm hauv kev siv txheej txheej.
Cov lus nug nquag nug txog Ethyl Acetate
ethyl acetate siv rau dab tsi?
Ethyl acetate feem ntau yog siv rau hauv coatings, adhesives, luam ntawv inks, kws tshuaj, tu cov khoom, thiab cov txheej txheem extraction vim nws muaj zog solvency thiab ceev evaporation tus nqi.
Puas yog ethyl acetate soluble hauv dej?
Ethyl acetate yog ib nrab soluble hauv dej, nrog solubility ntawm kwv yees li 8.3 wt% ntawm 20 degree, tab sis nws sib tov tag nrho nrog ntau cov kuab tshuaj organic.
Vim li cas ethyl acetate suav tias yog cov kuab tshuaj zoo?
Ethyl acetate combines nruab nrab polarity, tsis tshua muaj viscosity, ceev kom qhuav, thiab kuj tsis tshua muaj toxicity, tso cai rau nws mus dissolve ntau industrial resins zoo.
Puas yog ethyl acetate txaus ntshai?
Ethyl acetate yog flammable, nrog ib tug flash point nyob ib ncig ntawm -4 degree, yog li tsim nyog qhov cua thiab tawg-pov thawj tuav yog yuav tsum tau thaum lub sij hawm siv industrial. Txawm li cas los xij, nws feem ntau suav tias tsis muaj tshuaj lom ntau dua li ntau cov kuab tshuaj tsw qab.
ethyl acetate ua li cas?
Feem ntau muaj ethyl acetate yog tsim los ntawm esterification ntawm ethanol thiab acetic acid siv acidic catalysts nyob rau hauv kev tswj cov tshuaj tiv thaiv.
Dab tsi yog qhov txawv ntawm ethyl acetate thiab acetone?
Piv nrog rau acetone, ethyl acetate muaj cov dej ntws zoo dua thiab qib hauv cov txheej txheem vim nws cov evaporation qeeb qeeb.
Rau bulk ethyl acetate mov, kev txhawb nqa, thiab kev sib tw nqi,hu rau GNEE BIOTECH CO., LTD.hnub no.
