Igama Lomkhiqizo:I-Methyl Ethyl Ketone

Ifomethi ye-Molecular:C4H8O

Inombolo ye-CAS:78-93-3

Isakhiwo samangqamuzana omkhiqizo:

Ukucaciswa:

Chemical Properties:

I-Methyl ethyl ketone (MEK) iwuketshezi olungenambala olunephunga eliye lachazwa njengokucijile ngokumaphakathi, okunephunga elimnandi, i-peppermint, noma njenge-acetone.Incibilika emanzini afinyelela ku-28% ngesisindo futhi ixubene nezinye izinyibilikisi eziningi eziphilayo.Umkhawulo ophansi weziqhumane ngu-1.4% kanti umkhawulo wokuqhuma okuphezulu ngu-11.4%.I-Methyl ethyl ketone ingase ingahambisani nama-oxidizers aqinile, ama-amine, i-ammonia, i-inorganic acids, i-caustics, i-isocyanates, ne-pyridines.Uma isetshenziswa ezimbonini, i-methyl ethyl ketone kumele isingathwe ngokuqapha, njengoba iwuketshezi oluvuthayo lwe-Class lB i-NIOSH.

Isicelo:

I-Methyl ethyl ketone (i-2-butanone, i-ethyl methyl ketone, i-methyl acetone) i-solvent yemvelo enobuthi obuphansi ngokuqhathaniswa, etholakala ezinhlelweni eziningi.Isetshenziswa emikhiqizweni yezimboni neyezentengiselwano njengesithako sokunamathisela, upende, nama-ejenti okuhlanza nanjenge- de-waxing solvent.Ingxenye yemvelo yokunye ukudla, i-methyl ethyl ketone ingadedelwa endaweni ezungezile ngezintaba-mlilo nemililo yehlathi.Ibuye isetshenziswe njenge-flavoringsubstance ekudleni.

I-MEK isetshenziswa njenge-solvent yezinhlelo ezihlukahlukene zokuhlanganisa, isibonelo, i-vinyl, i-adhesives, i-nitrocellulose, ne-acrylic coatings.Isetshenziselwa ukususa upende, ama-lacquers, ama-varnish, amapende wesifutho, ama-sealers, ama-glues, amateyipu kazibuthe, oyinki bokuphrinta, ama-resin, ama-rosins, izixazululo zokuhlanza, kanye nokwenza i-polymerization.Itholakala kweminye imikhiqizo yabathengi, isibonelo, usimende wasendlini kanye nokuzilibazisa, nemikhiqizo yokugcwalisa izinkuni.I-MEK isetshenziswa ekukhipheni uwoyela wokugcoba, ukucoliswa kwezinsimbi, ekukhiqizeni izikhumba zokwenziwa, iphepha elisobala ne-aluminium foil, nanjengamakhemikhali aphakathi nendawo kanye ne-catalyst.Kuyi-solvent ekhishwa lapho kulungiswa ukudla nezithako zokudla.I-MEK ingasetshenziswa futhi ukuvala inzalo imishini yokuhlinza neyamazinyo.
Ngokungeziwe ekwenziweni kwayo, imithombo yemvelo ye-MEK ihlanganisa nokukhipha umoya ophuma ejethi nezinjini ezivuthayo zangaphakathi, kanye nemisebenzi yezimboni efana nokufakwa kwegesi kwamalahle.Itholakala ngamanani amakhulu entuthwini kagwayi.I-MEK ikhiqizwa ngokwebhayoloji futhi ikhonjwe njengomkhiqizo we-microbial metabolism.Iphinde yatholakala ezitshalweni, kuma-pheromone ezinambuzane, nezicubu zezilwane, futhi i-MEK cishe iwumkhiqizo omncane we-metabolism evamile yezilwane ezincelisayo.Iyazinzile ngaphansi kwezimo ezijwayelekile kodwa ingakha ama-peroxides ekugcinweni isikhathi eside;lezi zingase ziqhume.