Aha ngwaahịa:Methyl ethyl ketone

Ọkpụkpọ anụ ahụ:C4H8O

CAS Mba:78-93-3

Ọdịdị molekụla ngwaahịa:

Nkọwapụta:

Njirimara kemịkalụ:

Methyl ethyl ketone nwere ike ịnweta mmeghachi omume dị iche iche n'ihi otu carbonyl ya na hydrogen na-arụ ọrụ n'akụkụ otu carbonyl. Ntugharị na-eme mgbe ejiri hydrochloric acid ma ọ bụ sodium hydroxide kpoo ọkụ iji mepụta 3,4-dimethyl-3-hexen-2-one ma ọ bụ 3-methyl-3-hepten-5-otu. Mgbe ekpughere ìhè anyanwụ ruo ogologo oge, a na-emepụta ethane, acetic acid na condensation ngwaahịa. Mepụta diacetyl mgbe oxidized na nitric acid. Mgbe oxidized na ike oxidizing agents dị ka chromic acid, acetic acid na-emepụta. Butanone kwụsiri ike ka ọ na-ekpo ọkụ, na mgbawa ọkụ na okpomọkụ dị elu na-emepụta enone ma ọ bụ methyl enone. Mgbe ejikọtara ya na aliphatic ma ọ bụ aromatic aldehydes, a na-emepụta ketones dị arọ dị arọ, ogige cyclic, condensation ketone na resins. Dịka ọmụmaatụ, condensation na formaldehyde na ọnụnọ sodium hydroxide na-ebu ụzọ mepụta 2-methyl-1-butanol-3-otu, na-esote akpịrị ịkpọ nkụ na methacrylatone.
Resinization na-apụta mgbe ikpughe ìhè anyanwụ ma ọ bụ ìhè UV. Condensation na phenol na-ewepụta 2,2-bis(4-hydroxyphenyl) butane. Na-emeghachi omume na esters aliphatic na ọnụnọ nke isi ihe na-emepụta β-diketones. Acylation na acidic anhydride na ọnụnọ nke ihe na-eme ka acidic mepụta β-diketones. Na-emeghachi omume na hydrogen cyanide iji mepụta cyanohydrin. Ọ na-emeghachi omume na amonia iji mepụta ketopiperidine mwepu. A na-eji halogen dochie α-hydrogen atọm nke butanone ngwa ngwa iji mepụta ketones dị iche iche, dị ka 3-chloro-2-butanone site na mmekọrịta ya na chlorine. Mmekọrịta na 2,4-dinitrophenylhydrazine na-emepụta 2,4-dinitrophenylhydrazone odo odo.

Ngwa:

Methyl ethyl ketone (2-butanone, ethyl methyl ketone, methyl acetone) bụ ihe mgbaze organic nke toxicity dị ntakịrị, nke a na-ahụ n'ọtụtụ ngwa. A na-eji ya na ngwaahịa ụlọ ọrụ mmepụta ihe na nke azụmahịa dị ka ihe mgbaze maka adhesives, paints, and cleans agents na dị ka ihe mgbaze de-waxing. Akụkụ sitere n'okike nke ụfọdụ nri, methyl ethyl ketone nwere ike wepụta ya na gburugburu ebe obibi site na ugwu mgbawa na ọkụ ọhịa. A na-eji ya na-emepụta ntụ ntụ na-enweghị anwụrụ ọkụ na resins sịntetik na-enweghị agba, dị ka ihe mgbaze, na mkpuchi mkpuchi. A na-ejikwa ya dị ka ihe na-esi ísì ụtọ na nri.

A na-eji MEK dị ka ihe mgbaze maka usoro mkpuchi dị iche iche, dịka ọmụmaatụ, vinyl, adhesives, nitrocellulose, na mkpuchi acrylic. A na-eji ya na-ewepu agba, lacquers, varnishes, spray paints, sealers, glues, magnetik teepu, inks printing, resins, rosins, ihicha ihe ngwọta, na maka polymerization. A na-ahụ ya na ngwaahịa ndị ọzọ na-azụ ahịa, dịka ọmụmaatụ, ụlọ na simenti ntụrụndụ, na ngwaahịa na-ejuputa osisi. A na-eji MEK na-eme ka mmanụ na-ete mmanụ na-eme ka ọ dị mma, nbibi nke ọla, na mmepụta akpụkpọ anụ sịntetik, akwụkwọ mpempe akwụkwọ na aluminom foil, yana dị ka kemịkalụ etiti na ihe na-akpali akpali. Ọ bụ ihe mgbaze mmịpụta na nhazi nke ihe oriri na ihe oriri. A nwekwara ike iji MEK mee ka ngwa ịwa ahụ na eze kwụsịchaa.
Na mgbakwunye na nrụpụta ya, ebe nchekwa gburugburu ebe obibi sitere na MEK gụnyere iyuzucha si na jet na injin combustion n'ime, yana ihe omume ụlọ ọrụ dị ka ikuku gas. A na-ahụ ya n'oke anwụrụ ọkụ sịga. A na-emepụta MEK n'ụzọ ndụ ma chọpụta na ọ bụ ngwaahịa nke microbial metabolism. A hụkwara ya na osisi, pheromones ụmụ ahụhụ, na anụ ahụ anụmanụ, na MEK nwere ike bụrụ obere ngwaahịa nke metabolism mammalian nkịtị. Ọ kwụsiri ike n'okpuru ọnọdụ nkịtị mana ọ nwere ike mepụta peroxides na nchekwa ogologo oge; ndị a nwere ike ịbụ ihe mgbawa.