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Hauv kev tsim khoom lag luam thiab kev siv tswv yim, propylene glycol ethers yog tam sim no siv dav thiab siv cov kuab tshuaj ether.

Vim lawv cov khoom siv tshuaj ruaj khov thiab muaj peev xwm ua kom yaj cov organic feem ntau, ethers feem ntau yog siv rau hauv kev lag luam thiab cov

Cov khoom ntawm Ethers

Cov roj cawv ntsuab (feem ntau yog xa mus rau cov cawv ntsuab, nrog rau ntsuab methanol thiab ntsuab ethanol ua lub hauv paus) yog qhov ceev tshaj pla

Biomass Alcohols/Green Methanol (Green Alcohol)

Lub zeem muag yav tom ntej rau cov roj cawv feem ntau yog qhov zoo. Lawv sawv cev rau lwm txoj hauv kev tseem ceeb thaum lub sij hawm hloov hluav taws

Cov dej cawv muaj cov pa oxygen thiab muaj cov ntsiab lus hydrocarbon tsawg dua li cov roj av thiab cov roj av ib txwm muaj, ua rau muaj kev sib xyaw

Cawv yog ib qho tseem ceeb heev cov ntaub ntawv raw cov ntaub ntawv siv dav hauv ntau yam xws li kev tsim khoom, kev kho mob thiab kev lag luam tshuaj

Cov khoom ntawm lub cev ntawm cov cawv yog cuam tshuam los ntawm pawg hydroxyl thiab txawv txav ntawm lawv cov hydrocarbons sib xws.

Cov txheej txheem txhais ntawm cawv yog: cov tebchaw uas nws cov molecules muaj ib pawg hydroxyl sib txuas rau cov pa roj carbon atom ntawm pawg hydro

Kev tshem tawm cov tshuaj tiv thaiv ntawm haloalkanes feem ntau tshwm sim ib txhij nrog kev hloov pauv nucleophilic, thiab lawv sib tw nrog ib leeg.

Hauv cov tshuaj tiv thaiv no, halogen atom hauv haloalkane molecule yog hloov los ntawm pawg hydroxyl los ntawm cov dej molecule.