Methylene chloride, I-Organic Compound ngeFomula yamakhemikhali CH2CL2, uketshezi olungenamibala olunephunga elibonakalayo elifana ne-ether. Kunyibilika kancane emanzini, ethanol naku-Ether. Ngaphansi kwezimo ezijwayelekile, iyi-solvent engafinyeleleki ngephuzu eliphansi elibi. Lapho umphunga wayo eba ukugxila okuphezulu emoyeni ophakeme wokushisa, kuzokhiqiza ubumbano lwegesi oluxubile, oluvame ukusetshenziswa ukushintsha esikhundleni sokuvutha ama-ether, ether, njll.
Izakhiwo:-Naluthomethylene chlorideayinakho iphuzu le-flash. I-Solvents equkethe amavolumu alinganayo eDichloromethane nophethiloli, i-solvent naphtha noma i-toluene ayivuli. Kodwa-ke, lapho uDickoromethane exutshwe ne-acetone noma i-methyl Chemical Alcoach uketshezi ngo-10: 1 isilinganiso sokuxubana, ingxube inendawo ye-flash, umphunga kanye nomoya ukwakha ingxube eqhumayo, umkhawulo wokuqhuma kwe-6.2% ~ 15.0% (ivolumu).
Isicelo:
1. Isetshenziselwa ukugcotshwa okusanhlamvu kanye nesiqandisi sesiqandisi esiphansi sengcindezi kanye neyunithi yomoya.
2, isetshenziswe njenge-solvent, i-ejenti ye-mutagenic.
3, isetshenziswe embonini ye-elekthronikhi. Evame ukusetshenziswa njenge-ejenti yokuhlanza ukuze ususe uwoyela.
I-4, isetshenziswe njenge-anesthetic yendawo yamazinyo, esiqandisini, umenzeli we-ejenti wokucima umlilo, i-metal surface coating yokuhlanza nokuhlanza i-ejenti.
I-5, isetshenziswe njengommeleli wokuhlanganiswa kwe-organic.
Indlela yokulungiselela:
1. Inqubo yemvelo ye-chlorination yemvelo yegesi yemvelo iphendula nge-chlorine gesi. Ngemuva kokuthi i-hydrochloric acid ekhiqizwe yi-hydrogen chloride idonswa ngamanzi, umkhondo oseleyo we-hydrogen chloride ususiwe nge-ly, futhi umkhiqizo oqediwe utholakala ngokumiswa, ukucindezela, ukuvumelanisa kanye nokuvuthayo.
2. UChloromethane noChloromethane baphendule ngegesi ye-chlorine ngaphansi kwe-4000kw light ukukhiqiza i-dichloromethane, eyayiqediwe ngu-Alkali ukugeza, ukucindezelwa, ukuvumelanisa, ukomisa nokulungiswa. I-byproduct eyinhloko yiTrichloRomethane.
Ezokuphepha:
1.Izindlela zokuqapha ukusebenza:Gwema amaconsi enkungu ngesikhathi sokusebenza, bese ugqoka imishini yokuvikela yomuntu siqu efanelekile. Gwema ukukhulula amaconsi kamusi kanye nenkungu emoyeni wendawo yomsebenzi. Sebenza endaweni ethile enendawo umoya omncane futhi uthathe inani elincane. Imishini yokuphendula eziphuthumayo kufanele itholakale ngaso sonke isikhathi ukuze ulwe nemililo futhi ubhekane nokuchitheka. Iziqukathi ze-Grown ezingenalutho zingase zibe nezinsalela eziyingozi. Ungasebenzi eduze kwe-welding, ilangabi, noma indawo eshisayo.
2.Ukugcina Izinyathelo:Gcina endaweni epholile, eyomile, enomoya omuhle ngaphandle kokukhanya kwelanga okuqondile. Gcina kude nomthombo wokushisa, ilangabi kanye nokungasebenzi kahle njenge-oxidant eqinile, i-acid enamandla ne-nitric. Gcina esitsheni esibhalwe kahle. Iziqukathi ezingasetshenziswanga nezigubhu ezingenalutho kufanele zimbozwe ngokuqinile. Gwema ukulimala esitsheni bese uhlola ithangi njalo ukuze kube neziphambeko njengokuphuka noma ukuchitheka. Iziqukathi zitholwa nge-galvanized noma penolic resin ukunciphisa amathuba okubola kwe-methylene chloride. Isitoreji esilinganiselwe. Thumela izimpawu ezixwayisa lapho kufanele. Indawo yokugcina kufanele ihlukaniswe nendawo yokusebenza ezinamandla futhi ikhawulelwe ukufinyelela endaweni. Sebenzisa amapayipi epulasitiki aqokwe ukusetshenziswa ngezinto zokukhipha izinto ezinobuthi. Izinto ezibonakalayo zingakha ugesi ovumayo ongadala ukuhlanganiswa. Gcina endaweni epholile, eyomile, enomoya omuhle ukusuka elangeni eliqondile.
3.Ukupakishwa nokuhamba:Sebenzisa imiphongolo yensimbi egcwele ukuvalwa, 250kg umgqomo ngamunye, ithangi lesitimela, imoto ingahanjiswa. Kufanele igcinwe endaweni ebandayo, emnyama, eyomile, enomoya omuhle, naka umswakama.
Isikhathi sePosi: Feb-16-2023