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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.