I-methylene chloride, i-organic ye-organic ngefomula yekhemikhali i-ch2cl2, lulwelo olubonakalayo olungenamibala kwi-odor ye-pungent efana ne-ether. Inyibilika kancinane emanzini, ethanol kunye ne-ether. Phantsi kweemeko eziqhelekileyo, sisimo se-isohlwayo esingaphantsi kwendawo ebilayo. Xa umphunga wayo uba lugxininiso oluphezulu kumdlalo wobushushu obuphezulu, iya kuvelisa irhasi enomxube, eqhele ukusetyenziswa ngokutshintsha ipetroleum yepetrole, i-ether, njl njl.
Iipropathi:IcocekileI-methylene chlorideayinandawo ye-flash. Izinyibilikisi eziqukethe imiqulu elinganayo yeDichloromethane kunye ne-pelil ye-undel, i-selvent u-naphtha okanye i-toluene ayifikanga. Nangona kunjalo, xa iDichloromethane ixutywe ne-acetone okanye i-methyl iincwadana zekhefu zitywala kwi-10: 1 Umyinge ube ngumxube wokuqhushumba, umqobo we-6.2% 15.0% (ivolumu).
Isicelo:
1. Isetyenziselwa ukufudumeza ukutya okuziinkozo kunye nefriji yefriji ephantsi kunye neyunithi yomoya.
I-2, isetyenziswe njenge-solvent, i-Expeckive, iarhente ka-mutagenic.
I-3, isetyenziswe kumzi-mveliso we-elektroniki. Idla ngokusetyenziswa njengearhente yokucoca ukususa ioyile.
I-4, isetyenziswe njenge-anesthetic yendawo yasekhaya, i-arhente yokufumanisa umlilo, ukucima umlilo umlilo, insimbi yokucoca i-7
5, isetyenziswe njengendawo ephakathi kwi-synthesic synthesi.
Indlela yokulungiselela:
I-1. Indalo ye-chlorition ye-chlorif yegesi yegesi yegesi yegesi ye-chlorine. Emva kokuba i-hydrochloric acid iveliswe yi-hydrogen chloride ingene emanzini, i-hydrogen ye-hydrogen isuswe nge-LYE, kwaye imveliso egqityiweyo ifunyenwe ngokomisa kunye nokuphambanisa.
2. I-chloromethane kunye ne-chloromethane yasabela ngegesi ye-chlorine engaphantsi kwesibane se-4000kw ukuvelisa iDichloromethane, egqityiweyo nguAlkali, owomayo, ukomisa ulungiso. Eyona nto iphambili i-trichloromethane.
Ukhuseleko:
1.Amanyathelo okhuseleko:Kunqande inkungu phantsi ngexesha lokusebenza, kwaye unxibe izixhobo ezifanelekileyo zokhuselo. Kunqande ukukhupha i-steam kunye neenkungu ze-rogs emoyeni yomsebenzi. Isebenza kwindawo ethile enesiphatho esihle kwaye sithathe ubuncinci besixa. Izixhobo zokuphendula ngexesha likaxakeka kufuneka zibekhona ngalo lonke ixesha ukulwa imililo kunye nokujongana nokuchitheka. Izikhongozeli zokugcina ezingenanto zisenokuba zineentsalela eziyingozi. Sukusebenza kwindawo ekufutshane ye-welding, idangatye, okanye indawo eshushu.
2.Amanyathelo okhuseleko:Gcina kwindawo epholileyo, eyomileyo, enomoya ngaphandle kwelanga elangeni ngokuthe ngqo. Gcina kude kumthombo wobushushu, idangatye kunye neengxaki ezifana ne-oxidant enamandla, i-acid eyomeleleyo kunye ne-nitric acid. Ivenkile kwisikhongozeli esinelebheli. Izikhongozeli ezingasetyenziswanga kunye nemigqomo engenanto kufuneka igqunywe ngokuqinileyo. Khusela umonakalo kwisikhongozeli kwaye uhlole itanki rhoqo kwisiphene esifana nokuqhawula okanye ukonakala. Izikhongozeli zidityaniswe ne-gazin okanye i-fenalin restin ukunciphisa ukubakho kokubekwa kwe-methylene chloride. Indawo yokugcina. Iimpawu zesilumkiso zeposi apho kufanelekileyo. Indawo yogcino kufuneka yahlulwe kubasebenzi abanobuchule bokusebenza kwaye bafikelela kwindawo leyo. Sebenzisa imibhobho yeplastiki eyenzelwe ukusetyenziswa kunye nezinto zokukhupha izinto eziyityhefu. Izinto ezinokwakha umbane obengezelayo onokubangela ukuvutha. Gcina kwindawo epholileyo, eyomileyo, enomoya, enomoya enomoya.
3.Ukupakisha kunye nezothutho:Sebenzisa imiphanda yentsimbi ye-iron ukuze ivaliwe, i-250kg nge-barrel nganye, itanki yoqeqesho, imoto inokuhanjiswa. Ifanele igcinwe kwindawo ebandayo, emnyama, eyomileyo, eyomileyo, enomoya, inikele ingqalelo kumswakama.
IXESHA LOKUQALA: NgoFebruwari-16 ukuya ku-2003