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 iyinhlanganisela ye-organic enefomula yamakhemikhali CH3COCH2CH3 kanye nesisindo samangqamuzana angu-72.11. Iwuketshezi olungenambala futhi olusobala olunephunga elifana ne-acetone. Iguquguquka kalula. Ixubene ne-ethanol, i-ether, i-benzene, i-chloroform namafutha. Incibilika ezingxenyeni ezi-4 zamanzi, kodwa ukuncibilika kuncipha lapho izinga lokushisa likhuphuka, futhi kungakha ingxube ye-azeotropic ngamanzi. Ubuthi obuphansi, i-LD50 (igundane, ngomlomo) 3300mg/kg. evuthayo, umhwamuko ungenza ingxube eqhumayo nomoya. Ukugcwala okuphezulu komhwamuko kunezinto ezibulala izinzwa.

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.