Igoa Oloa：Methyl Ethyl Ketone

fa'asologa mole:C4H8O

Numera CAS:78-93-3

Fauga mole mole oloa：

Fa'amatalaga:

Meatotino tau vailaau:

Methyl ethyl ketone e a'afia i gaioiga eseese ona o lona vaega carbonyl ma le hydrogen malosi e lata ane i le vaega carbonyl. Condensation e tupu pe a faʻamafanafanaina i le hydrochloric acid poʻo le sodium hydroxide e maua ai le 3,4-dimethyl-3-hexen-2-one poʻo le 3-methyl-3-hepten-5-one. A faʻaalia i le susulu o le la mo se taimi umi, ethane, acetic acid ma condensation oloa e gaosia. Fausia le diacetyl pe a fa'ama'iina ile nitric acid. Pe a faʻamaʻiina i vailaʻau faʻamaʻi malosi e pei o le chromic acid, e maua ai le acetic acid. Butanone e fai si mautu i le vevela, ma o le vevela vevela i le maualuga o le vevela e maua ai le enone poʻo le methyl enone. A fa'aputu i aliphatic po'o aromatic aldehydes, maualuga mole mole mamafa ketones, cyclic compounds, ketone condensation ma resins e gaosia. Mo se faʻataʻitaʻiga, o le condensation ma formaldehyde i le i ai o le sodium hydroxide muamua e maua ai le 2-methyl-1-butanol-3-one, sosoo ai ma le faʻamama i le methacrylatone.
Resinization e tupu pe a faʻaalia i le la poʻo le malamalama UV. Condensation ma phenol e maua ai le 2,2-bis(4-hydroxyphenyl)butane. E tali atu i esters aliphatic i le i ai o se faʻavae faʻavae e maua ai β-diketones. Acylation ma le acidic anhydride i le i ai o se faʻamaʻi faʻamalosi e fausia ai β-diketones. E tali atu i le hydrogen cyanide e fai ai le cyanohydrin. E tali atu i le amonia e fai ai mea e maua mai ai le ketopiperidine. O le α-hydrogen atom o butanone e faigofie lava ona suia i halogens e fausia ai ni ketone halogenated eseese, e pei o le 3-chloro-2-butanone e ala i fegalegaleaiga ma chlorine. Fegalegaleaiga ma le 2,4-dinitrophenylhydrazine e maua ai le samasama 2,4-dinitrophenylhydrazone.

Talosaga:

Methyl ethyl ketone (2-butanone, ethyl methyl ketone, methyl acetone) ose solvent organic e maualalo le oona, lea e maua i le tele o talosaga. E fa'aaogaina i mea tau alamanuia ma fa'atau oloa e fai ma so'o fa'apipi'i, vali, ma mea fa'amamā ma avea ma so'o solo. O se vaega faanatura o nisi o meaai, methyl ethyl ketone e mafai ona tuʻuina atu i totonu o le siosiomaga e maugamu ma afi o le vaomatua. E faʻaaogaina i le gaosiga o le paʻu e leai se asu ma le lanu synthetic resins, e pei o se solvent, ma le insurface coating. E fa'aaogaina fo'i e fai ma mea fa'aono i mea'ai.

MEK o loʻo faʻaaogaina e fai ma solvent mo faiga faʻapipiʻi eseese, mo se faʻataʻitaʻiga, vinyl, faʻapipiʻi, nitrocellulose, ma faʻapipiʻi acrylic. E faʻaaogaina i mea vali vali, lacquers, varnishes, vali vali, faʻamaufaʻailoga, kelu, lipine maneta, vaitusi lolomi, resins, rosins, vaifofo faamamaina, ma mo polymerization. E maua i isi oloa fa'atau, mo se fa'ata'ita'iga, sima fale ma mea e fiafia i ai, ma oloa fa'atumu fafie. MEK o loʻo faʻaaogaina i le suauʻu lubricating dewaxing, le faʻafefe o metala, i le gaosiga o paʻu gaosia, pepa manino ma le alumini pepa, ma o se vailaʻau vavalo ma faʻamalosi. O se mea e fa'afefeteina ai mea'ai i le gaosiga o mea'ai ma mea'ai. E mafai fo'i ona fa'aogaina le MEK e fa'amama ai masini tipitipi ma nifo.
I le faaopoopo atu i lona gaosiga, o puna o le siosiomaga o le MEK e aofia ai le gase mai le vaalele ma afi afi i totonu, ma galuega tau alamanuia e pei o le fa'asaoina o koale. E maua i se aofaiga tele i le asu tapaa. MEK e gaosia fa'ale-ola ma ua fa'ailoaina ose mea e maua mai i le fa'ato'aga o meaola ninii. Ua maua foi i la'au, pheromones iniseti, ma aano o manu, ma o le MEK atonu o se mea itiiti o le metabolism mamame masani. E mautu i lalo o tulaga masani ae mafai ona fausia peroxyide i luga o le teuina faaumiumi; atonu e papa.