Dzina lazogulitsa:Methyl Ethyl Ketone

Mtundu wa Molecular:C4H8O

CAS No:78-93-3

Mankhwala maselo kapangidwe:

Kufotokozera:

Chemical Properties:

Methyl ethyl ketone imakhudzidwa ndi machitidwe osiyanasiyana chifukwa cha gulu lake la carbonyl ndi haidrojeni yogwira moyandikana ndi gulu la carbonyl. Condensation imachitika ikatenthedwa ndi hydrochloric acid kapena sodium hydroxide kupanga 3,4-dimethyl-3-hexen-2-imodzi kapena 3-methyl-3-hepten-5-imodzi. Akayatsidwa ndi kuwala kwa dzuwa kwa nthawi yayitali, ethane, acetic acid ndi zinthu zotsitsimula zimapangidwa. Pangani diacetyl pamene oxidized ndi nitric acid. Pamene okosijeni ndi oxidizing amphamvu monga chromic acid, asidi acetic amapangidwa. Butanone imakhala yokhazikika pakutentha, ndipo kutentha kwapakati pa kutentha kwakukulu kumatulutsa enone kapena methyl enone. Akapangidwa ndi aliphatic kapena onunkhira aldehydes, ma ketoni olemera kwambiri, ma cyclic compounds, ketone condensation ndi resins amapangidwa. Mwachitsanzo, condensation ndi formaldehyde pamaso pa sodium hydroxide poyamba kumapanga 2-methyl-1-butanol-3-imodzi, kenako kuchepa madzi m'thupi kwa methacrylatone.
Resinization imachitika padzuwa kapena kuwala kwa UV. Condensation ndi phenol imatulutsa 2,2-bis(4-hydroxyphenyl)butane. Imakhudzidwa ndi ma aliphatic esters pamaso pa chothandizira kutulutsa ma β-diketones. Acylation yokhala ndi acidic anhydride pamaso pa acidic catalyst kupanga ma β-diketones. Imakhudzidwa ndi hydrogen cyanide kupanga cyanohydrin. Imakhudzidwa ndi ammonia kupanga zotumphukira za ketopiperidine. Atomu ya α-hydrogen ya butanone imasinthidwa mosavuta ndi ma halogen kuti apange ma ketoni osiyanasiyana a halogenated, monga 3-chloro-2-butanone polumikizana ndi chlorine. Kuyanjana ndi 2,4-dinitrophenylhydrazine kumapanga chikasu cha 2,4-dinitrophenylhydrazone.

Ntchito:

Methyl ethyl ketone (2-butanone, ethyl methyl ketone, methyl acetone) ndi organic zosungunulira wa kawopsedwe otsika, amene amapezeka ntchito zambiri. Amagwiritsidwa ntchito m'mafakitale ndi malonda monga zosungunulira zomatira, utoto, ndi zoyeretsera komanso ngati zosungunulira zosungunulira. Chigawo chachilengedwe cha zakudya zina, methyl ethyl ketone imatha kutulutsidwa m'chilengedwe ndi mapiri ndi moto wa nkhalango. Amagwiritsidwa ntchito popanga ufa wopanda utsi ndi utomoni wopanda utoto, monga zosungunulira, ndi zokutira zamkati. Amagwiritsidwanso ntchito ngati chokometsera m'zakudya.

MEK imagwiritsidwa ntchito ngati chosungunulira pamakina osiyanasiyana okutira, mwachitsanzo, vinyl, zomatira, nitrocellulose, ndi zokutira za acrylic. Amagwiritsidwa ntchito pochotsa utoto, ma lacquers, ma varnish, utoto wopopera, zosindikizira, zomatira, matepi a maginito, inki zosindikizira, ma resin, ma rosin, zotsukira, komanso polima. Amapezeka muzinthu zina zogula, mwachitsanzo, simenti zapakhomo ndi zosangalatsa, ndi zinthu zodzaza matabwa. MEK ntchito dewaxing mafuta mafuta, degreasing zitsulo, kupanga kupanga zikopa, mandala pepala ndi zojambulazo aluminiyamu, ndi monga mankhwala wapakatikati ndi chothandizira. Ndi zosungunulira m'zigawo pokonza zakudya ndi zosakaniza chakudya. MEK itha kugwiritsidwanso ntchito kutsekereza zida za opaleshoni ndi zamano.
Kuphatikiza pakupanga kwake, gwero lachilengedwe la MEK limaphatikizapo utsi wa ndege ndi injini zoyatsira mkati, ndi zochitika zamafakitale monga kutulutsa malasha. Amapezeka mu utsi wochuluka wa fodya. MEK imapangidwa mwachilengedwe ndipo yadziwika kuti idapangidwa ndi tizilombo toyambitsa matenda. Zapezekanso muzomera, ma pheromones a tizilombo, ndi minyewa ya nyama, ndipo MEK mwina ndi chinthu chaching'ono cha metabolism yachibadwa ya mammalian. Imakhala yokhazikika pansi pazikhalidwe wamba koma imatha kupanga peroxides pakusungidwa kwanthawi yayitali; izi zitha kukhala zophulika.