Khoom npe:Methyl Ethyl Ketone

Molecular hom:C4H8O

CAS Nr:78-93-3 ib

Cov khoom siv molecular:

Specification:

Chemical Properties:

Methyl ethyl ketone muaj kev cuam tshuam rau ntau yam kev cuam tshuam vim nws pawg carbonyl thiab cov nquag hydrogen nyob ib sab ntawm pawg carbonyl. Condensation tshwm sim thaum rhuab nrog hydrochloric acid los yog sodium hydroxide los tsim 3,4-dimethyl-3-hexen-2-ib los yog 3-methyl-3-hepten-5-one. Thaum raug tshav ntuj ntev, ethane, acetic acid thiab condensation khoom raug tsim. Tsim diacetyl thaum oxidized nrog nitric acid. Thaum oxidized nrog cov oxidizing muaj zog xws li chromic acid, acetic acid yog generated. Butanone kuj ruaj khov rau cov cua sov, thiab thermal cleavage ntawm qhov kub thiab txias ua rau enone los yog methyl enone. Thaum condensed nrog aliphatic los yog aromatic aldehydes, siab molecular hnyav ketones, cyclic compounds, ketone condensation thiab resins yog tsim. Piv txwv li, condensation nrog formaldehyde nyob rau hauv lub xub ntiag ntawm sodium hydroxide ua ntej ua 2-methyl-1-butanol-3-ib, ua raws li lub cev qhuav dej rau methacrylatone.
Resinization tshwm sim thaum raug tshav ntuj lossis UV teeb. Condensation nrog phenol yields 2,2-bis (4-hydroxyphenyl) butane. Reacts nrog aliphatic esters nyob rau hauv lub xub ntiag ntawm ib tug yooj yim catalyst los tsim β-diketones. Acylation nrog acidic anhydride nyob rau hauv lub xub ntiag ntawm ib tug acidic catalyst los tsim β-diketones. Reacts nrog hydrogen cyanide los tsim cyanohydrin. Reacts nrog ammonia los tsim ketopiperidine derivatives. Lub α-hydrogen atom ntawm butanone tau hloov pauv nrog halogens los tsim ntau yam halogenated ketones, xws li 3-chloro-2-butanone los ntawm kev cuam tshuam nrog chlorine. Kev sib cuam tshuam nrog 2,4-dinitrophenylhydrazine ua rau daj 2,4-dinitrophenylhydrazone.

Daim ntawv thov:

Methyl ethyl ketone (2-butanone, ethyl methyl ketone, methyl acetone) yog cov organic hnyav ntawm cov tshuaj lom neeg tsawg, uas muaj nyob hauv ntau daim ntawv thov. Nws yog siv rau hauv kev lag luam thiab cov khoom lag luam ua cov kuab tshuaj rau cov nplaum, xim, thiab cov tshuaj ntxuav thiab ua cov kuab tshuaj de-waxing. Ib qho khoom siv ntuj tsim ntawm qee yam khoom noj, methyl ethyl ketone tuaj yeem tso tawm rau hauv ib puag ncig los ntawm cov hluav taws kub thiab hav zoov hluav taws. Nws kuj yog siv los ua ib qho khoom qab zib hauv cov khoom noj.

MEK yog siv los ua cov kuab tshuaj rau ntau yam txheej txheej, piv txwv li, yas, nplaum, nitrocellulose, thiab acrylic coatings. Nws yog siv nyob rau hauv cov xim Remover, lacquers, varnishes, tshuaj tsuag xim, sealers, glues, sib nqus tapes, luam ntawv inks, resins, rosins, tu tov, thiab rau polymerization. Nws muaj nyob rau hauv lwm yam khoom siv, piv txwv li, tsev neeg thiab kev nyiam ua cements, thiab cov khoom ntim ntoo. MEK yog siv rau hauv dewaxing lubricating roj, degreasing ntawm hlau, nyob rau hauv zus tau tej cov hluavtaws tawv, pob tshab ntawv thiab txhuas ntawv ci, thiab raws li ib tug tshuaj intermediate thiab catalyst. Nws yog ib qho extraction hnyav hauv kev ua cov khoom noj thiab cov khoom xyaw zaub mov. MEK kuj tseem siv tau los ua kom tsis muaj menyuam cov khoom siv phais thiab kho hniav.
Ntxiv rau nws qhov kev tsim khoom, ib puag ncig ntawm MEK suav nrog cov pa tawm los ntawm lub dav hlau thiab cov tshuab hluav taws xob sab hauv, thiab kev lag luam xws li gasification ntawm thee. Nws pom muaj ntau npaum li cas hauv cov pa luam yeeb. MEK yog tsim los ntawm biologically thiab tau raug txheeb xyuas raws li cov khoom ntawm microbial metabolism. Nws kuj tau pom nyob rau hauv cov nroj tsuag, kab pheromones, thiab tsiaj cov ntaub so ntswg, thiab MEK yog tej zaum ib tug me me khoom ntawm ib txwm mammalian metabolism. Nws ruaj khov nyob rau hauv cov xwm txheej zoo tib yam tab sis tuaj yeem tsim peroxides ntawm kev cia ntev; tej no tej zaum yuav tawg.