Ethyl acetate (EtOAc)yog ib qho nruab nrab -volatility ester hnyav nrog lub boiling point ntawm 77 degree, dav siv nyob rau hauv coatings, inks, adhesives, thiab kws tshuaj extraction vim nws balanced solvency thiab evaporation tus nqi.
Hauv kev tsim qauv, ethyl acetate feem ntau xaiv los ua cov kuab tshuaj hauv paus, tab sis lwm txoj hauv kev xws li acetone, MEK, IPA, thiab butyl acetate yog siv nyob ntawm kev ziab nrawm, hnyav hnyav, kev tswj hwm, thiab cov txheej txheem kawg.
Ethyl Acetate (EtOAc) yog dab tsi hauv kev siv?
Ethyl acetate (C₄H₈O₂) yog ester hnyav nrog ceev evaporation, nruab nrab solvency, thiab tsawg viscosity, ua rau nws haum rau coatings, luam ntawv inks, nplaum, thiab tu tshuab.
Nws muab qhov sib npaug ntawm kev ziab sai thiab kev tsim cov yeeb yaj kiab, uas yog vim li cas nws tau siv dav hauv cov txheej txheem tsim khoom.
Cov khoom tseem ceeb:
- Cov tshuaj formula: C₄H₈O₂
- Kub taw tes: ~ 77 degree
- Flash point: -4℃(hnyav heev)
- Qhov ceev: ~ 0.89 g / mL
- evaporation tus nqi: ceev
- KB tus nqi: ~ 58 (lub zog hnyav hnyav)
Cov txheej txheem rau Kev Xaiv Ethyl Acetate Alternatives
Industrial solvent xaiv feem ntau yog raws li nram no:
- Solvency zog (KB tus nqi)
- evaporation tus nqi (kom qhuav ceev tswj)
- Boiling point (txheej txheem stability)
- Flash point (kev nyab xeeb & tuav)
- Cov ntxhiab tsw phem (ua haujlwm ib puag ncig)
- Resin compatibility (txheej zoo)
- VOC cov cai (kev ua raws li ib puag ncig)
- Tus nqi thiab khoom ruaj khov
Cov kev ntsuas no txiav txim siab seb cov kuab tshuaj puas tuaj yeem hloov lossis ntxiv ethyl acetate hauv cov qauv tsim khoom.
MEK vs Ethyl Acetate
Tom ntej: Methyl Ethyl Ketone (MEK)yog lub zog hnyav dua ketone hnyav siv nyob rau hauv siab -kev ua tau zoo txheej thiab cov nplaum nplaum.
Qhov sib piv tseem ceeb:
- Boiling point: EA 77℃vs MEK ~ 80 degree
- KB tus nqi: EA 58 vs MEK 90
- Evaporation: MEK sai dua me ntsis
- Qhov tsw: MEK yog sharper
- Resin dissolution: MEK muaj zog dua
MEK yog qhov zoo dua yog tias yuav tsum tau muaj zog resin soluble, tshwj xeeb tshaj yog nyob rau hauv polyurethane thiab siab -cov txheej txheem txheej. Txawm li cas los xij, ethyl acetate muaj qhov sib npaug zoo dua thiab qis dua qhov cuam tshuam.
Tej kev siv:
- Muaj txheej txheej
- Adhesives
- PU resin systems
- High- cov qauv tsim
IPA vs Ethyl Acetate
Isopropyl cawv (IPA)yog ib tug polar cawv solvent tsuas yog siv los ntxuav thiab npaj nto.
Qhov sib piv tseem ceeb:
- Boiling point: EA 77℃vs IPA 82 degree
- KB tus nqi: EA 58 vs IPA 37
- Evaporation: IPA qeeb dua
- Solvency: IPA tsis muaj zog rau cov resins
IPA tsis yog txheej txheej hloov pauv tab sis yog siv dav hauv kev tu, degreasing, thiab chaw ua tshuaj vim muaj dej sib xws.
Tej kev siv:
- Electronics tu
- Pharmaceutical huv si
- Degreasing saum npoo
Acetone vs Ethyl Acetate
Acetoneyog ib qho hnyav heev thiab muaj zog hnyav hnyav nrog evaporation ceev heev.
Qhov sib piv tseem ceeb:
- Boiling point: EA 77℃vs acetone 56 degree
- Evaporation: acetone sai dua
- Tus nqi KB: EA 58 vs acetone 98
- Cov txheej txheem tswj: acetone tsis ruaj khov
Acetone yuav tsum tau siv thaum lub sijhawm ziab kom siab tshaj plaws, tab sis nws yuav ua rau cov txheej txheem tsis zoo yog tias tsis tswj xyuas kom zoo.
Tej kev siv:
- Fast- cov coatings qhuav
- Ntxuav tshuab
- Printing inks
Butyl Acetate vs Ethyl Acetate
Butyl acetate (BA) hmoovyog ib qho qeeb dua -evaporating ester hnyav siv rau kev txhim kho qib thiab ua kom tiav.
Qhov sib piv tseem ceeb:
- Boiling point: EA 77℃vs BA 126 degree
- Evaporation: BA ntau qeeb
- Leveling: BA superior
- Kev ziab kom qhuav: EA sai dua
BA yog nyiam nyob rau hauv automotive coatings qhov chaw smoothness yog ib qho tseem ceeb tshaj kom qhuav ceev.
Tej kev siv:
- Automotive txheej
- Cov xim muaj xim
- Ntoo coatings
Comparative Solvent Properties (Industrial Selection Table)
| Khoom | Ethyl Acetate | MEK | IPA | Acetone | Butyl Acetate |
|---|---|---|---|---|---|
| Kub Point (degree) | 77 | 80 | 82 | 56 | 126 |
| Flash Point (degree) | -4 | -9 | 12 | -20 | 22 |
| Tus nqi evaporation | Nruab nrab- nrawm | Ceev ceev | qeeb | ceev heev | qeeb |
| KB Tus nqi | 58 | 90 | 37 | 98 | 55 |
| Solvency Strength | Nruab nrab | Siab | Tsawg | Siab heev | Nruab nrab |
| tsw | Txiv hmab txiv ntoo me me | Ntsej muag | Cawv | Ntshai | Mob me |
Vim li cas EA qee zaum ua rau txheej txheej tsis xws luag?
Ethyl acetate tuaj yeem evaporate sai heev nyob rau hauv qhov kub thiab txias, uas yuav ua rau:
- pluag leveling
- txiv kab ntxwv tev
- pinholes
- nto whitening (blushing)
Txhawm rau txo qhov tsis xws luag, nws feem ntau sib xyaw nrog cov kuab tshuaj qeeb qeeb xws li butyl acetate.
Cov Lus Qhia Txog Kev Nyab Xeeb thiab Kev Cia Khoom
Ethyl acetate yog ib qho hnyav hnyav heev thiab yuav tsum tau ua raws li kev tswj xyuas.
Cov yam ntxwv tseem ceeb ntawm kev nyab xeeb:
- Flash point: -4 degree
- NFPA ntsuam xyuas: 3
- Exposure limit: 400 ppm (TWA)
- Qhov cua yuav tsum tau thaum tuav
Cia tej yam kev mob:
- Kub: 15-25 ° C
- Ntim: kaw HDPE lossis stainless hlau
- Khaws kom deb ntawm cov oxidizers thiab qhov hluav taws kub
Kev lag luam khoom ntawm Ethyl Acetate (CAS 141-78-6)
Ethyl acetate yog siv dav hauv cov kuab tshuaj hauv cov txheej txheem, cov nplaum, cov tshuaj pleev ib ce, thiab tshuaj lom neeg kev lag luam. Cov khoom ruaj khov thiab zoo ib yam batch zoo yog qhov tseem ceeb rau kev tsim khoom tas mus li.
Tianjin Gnee Biotech Co., Ltd. muab kev lag luam -qib ethyl acetate nrog COA, MSDS, thiab TDS cov ntaub ntawv los txhawb kev lag luam thoob ntiaj teb thiab kev tswj hwm kev ua raws cai.
Cov ntsiab lus
Ethyl acetate hmoovyog qhov sib npaug nruab nrab-volatility hnyav nyob nruab nrab ntawm ceev-evaporating acetone thiab qeeb- ziab butyl acetate. Nws qhov txiaj ntsig tseem ceeb yog kev sib xyaw ua ke ntawm kev daws teeb meem nruab nrab (KB ~ 58) thiab tswj kev evaporation (77℃boiling point), ua rau nws tus qauv siv hnyav hauv cov coatings, inks, thiab cov ntawv nplaum.
