Magaca Alaabta：Methyl Ethyl Ketone

Qaab molecular:C4H8O

CAS Maya:78-93-3

Qaab dhismeedka molecular Product：

Faahfaahin:

Guryaha Kiimikada:

Methyl ethyl ketone wuxuu u nugul yahay falcelinno kala duwan sababtoo ah kooxda kaarboonyl-ka iyo hydrogen-ka firfircoon ee u dhow kooxda carbonyl.Uumi wuxuu dhacaa marka lagu kululeeyo hydrochloric acid ama sodium hydroxide si loo soo saaro 3,4-dimethyl-3-hexen-2-one ama 3-methyl-3-hepten-5-one.Marka ay la kulmaan iftiinka qorraxda muddo dheer, ethane, acetic acid iyo alaabada uumiga ayaa la soo saaraa.Samee diacetyl marka oksaydh lagu daro nitric acid.Marka oksaydh lagu sameeyo walxaha oksijiinta ee xooggan sida chromic acid, acetic acid ayaa la abuuraa.Butanone aad ayuu u deggan yahay kulaylka, kala-goynta kulaylka ee heerkul sare ayaa soo saara enone ama methyl enone.Marka lagu dhejiyo aldehyde aliphatic ama aromatic, ketones miisaan sare leh, xeryahooda meerto, uumi ketone iyo resins ayaa la soo saaraa.Tusaale ahaan, uumiga leh formaldehyde ee joogitaanka sodium hydroxide marka hore waxay soo saartaa 2-methyl-1-butanol-3-one, oo ay ku xigto fuuq-baxa methacrylatone.
Dib-u-soo-celinta waxay dhacdaa marka ay soo baxdo iftiinka qorraxda ama iftiinka UV.Uumiga leh phenol wuxuu soo saaraa 2,2-bis(4-hydroxyphenyl) butane.Waxay ka falcelisaa esters aliphatic iyada oo ay jirto kiciye aasaasiga ah si loo soo saaro β-diketones.Acylation leh anhydride acidic joogitaanka kicinta acidic si ay u sameeyaan β-diketones.Waxay la falgashaa hydrogen cyanide si ay u sameyso cyanohydrin.Waxay la falgashaa ammonia si ay u sameyso derivatives ketoperidine.Atomka α-hydrogen ee butanone waxaa si sahal ah loogu beddelaa halogens si loo sameeyo ketones kala duwan oo halogenated ah, sida 3-chloro-2-butanone iyadoo la falgalayo koloriin.Isdhexgalka 2,4-dinitrophenylhydrazine wuxuu soo saaraa jaalaha 2,4-dinitrophenylhydrazone.

Codsiga:

Methyl ethyl ketone (2-butanone, ethyl methyl ketone, methyl acetone) waa dareere dabiici ah oo sun ah oo aad u hooseeya, kaas oo laga helo codsiyo badan.Waxaa loo isticmaalaa alaabada warshadaha iyo ganacsiga sida dareere loogu talagalay xabagta, rinjiga, iyo walxaha nadiifinta iyo sida dareeraha de-waxing.Qayb dabiici ah oo ka mid ah cuntooyinka qaarkood, methyl ethyl ketone waxa lagu sii dayn karaa deegaanka iyada oo ay samaynayaan foolkaanaha iyo dabka kaynta.Waxa loo isticmaalaa samaynta budada qiiqa iyo xabagta synthetic ee aan midabka lahayn, sida dareere, iyo dahaarka dusha sare.Waxa kale oo loo isticmaalaa walxo dhadhan ahaan cuntada.

MEK waxa loo isticmaalaa sida dareere ah hababka daahan kala duwan, tusaale ahaan, vinyl, koollada, nitrocellulose, iyo daahan akril.Waxaa loo isticmaalaa rinji-saarayaasha, lacquers, varnishes, rinjiga buufinta, xirayaasha, xabagta, cajaladaha magnetic, khadadka daabacaadda, resins, rosins, xalalka nadiifinta, iyo polymerization.Waxaa laga helaa alaabooyinka kale ee macaamiisha, tusaale ahaan, sibidhka guriga iyo hiwaayadda, iyo alaabta alwaaxa lagu buuxiyo.MEK waxa loo isticmaalaa in laga nadiifiyo saliidaha saliidaynta, xaalufinta biraha, soo saarista hargaha synthetic, warqad hufan iyo bireed aluminium ah, iyo sidii dhexdhexaad kiimikaad iyo kicinta.Waa dareere soo saarista habaynta cuntooyinka iyo maaddooyinka cuntada.MEK waxa kale oo loo isticmaali karaa in lagu nadiifiyo qalabka qalliinka iyo ilkaha.
Ka sokow soo saarideeda, ilaha deegaanka ee MEK waxaa ka mid ah qiiqa ka yimaada jet-ka iyo matoorada gubashada gudaha, iyo hawlaha warshadaha sida gaasta dhuxusha.Waxaa laga helaa xaddi la taaban karo qiiqa tubaakada.MEK waxa loo soo saaray qaab bayooloji waxaana loo aqoonsaday inay tahay wax soo saarka dheef-shiid kiimikaad.Waxa kale oo laga helay dhirta, pheromones-ka cayayaanka, iyo unugyada xayawaanka, iyo MEK waxay u badan tahay inay tahay shey yar oo dheef-shiid kiimikaad caadiga ah naasleyda.Waxay ku xasilloon tahay xaaladaha caadiga ah laakiin waxay samayn kartaa peroxides kaydinta dheer;kuwaani waxay noqon karaan kuwo qarxa.