Tlhahiso ea metethane maemong a mahae le a laboratori

Methane - khase e se nang mebala e tukang ka lelakabe la buluse, motsoako o ka sehloohong oa tlhaho (77-90%) le likhase tse amanang, li phatloha.

Ho hlahisa methene

Khase ena e thehoa ka lebaka la methane, hammoho le mefuta e meng ea phepo ea lik'hemik'hale tse fapaneng tse nang le tšusumetso ea baktheria Cellulosae metanicus :

(С6Н10О5) н + нН2О - 3нСН4 + 3нСО2.

Ka linako tse ling methane e bitsoa khase ea meru, hobane e thehoa nakong ea ho belisoa ha methane ea lintho tse phelang tlas'a matamo a tlhaho. Ho phaella moo, methane e thehoa mehleng ea khale ea li-ruminants le mala a liphoofolo nakong ea ho belisoa ha limela. Ho na le methane e mengata e hlahisitsoeng mona-e leng atony ea prednagus, e nang le chefo ea dyspepsia, ho fepa ka lijo tse futsanehileng.

Methane e ikarabella karolo ea boraro ea boima ba lik'hamphani. Ha ho senya manyolo a liphoofolo tsa temo, ho thehoa methane e ngata, eo ka thuso ea mehaho e ikhethang e sebelisetsoang ho futhumatsa mehaho ea mehlape.

Ho hlahisoa ha metane ka mokhoa o chesang oa phepelo ea oli, khase ea tlhaho, co-coking le hydrogenation ea mashala a thata (27-38%) e hlahisa boholo bo bongata. Khase ena e theha motheo oa sepakapaka sa lipolanete tse ling (Jupiter, Titan, Saturn).

Ho hlahisa metane lapeng

E le hore u fumane khase ena, ho hlokahala hore u nke mobu ho tloha ka tlase ea marupe 'me u o tšele ka nkho, ebe u tšela metsi. Ka mor'a moo, lijana li koaletsoe ka thata le sebaka se futhumetseng le se lefifi. Ka matsatsi a seng makae holim 'a metsi, u tla bona ho hlaha ha li-bubble tse nyane. Gesi e tsoang ho kannete e ka tlosoa ka thuso ea sekhahla sa khase.

Methane tlhahiso ea laboratori

E le molao, o entsoeng ho tloha ho sodium acetate tlasa Dumas reaction. Ka tube e ommeng, e entsoe ka karolo ea 10 g ea motsoako, e nang le karolo e le 'ngoe ea acetate ea sodium le likarolo tse peli tsa soda leme (tharollo e phethehileng ea sodium hydroxide le calcium oxide ka karolelano ea 1: 1). Theipi e koahetsoe ka tube e kenang ka khase 'me e ts'oaroe ka lekhetlo le le leng. Motsoako o futhumetse. E lokela ho hlokomeloa hore mocheso oa pele oa tube, ebe joale - motsoako. Methane, e thehiloeng tabeng ena, pele e theohela ka tube ea teko e nang le metsi, ebe e fetoha li-tubes tse tletseng likarolo tsa potassium permanganate le iodine e nang le iodide ea potassium.

Methane e thehoa ka lebaka la mocheso oa hydrolysis oa sodium acetate le alkali:

Sodium acetate + sodium hydroxide-methane + sodium carbonate

Ho hlahisa ethylene ho tloha methane

Ethylene ke ntho ea bohlokoa bakeng sa tlhahiso ea polystyrene le polyethylene. Mekhoa ea mehleng ea kajeno ea indasteri ea ho hlahisa ethylene e itšetlehile ka karolo ea mocheso oa likaroloana tsa oli tse khanyang. Mefuta e meng e tšepisang ea mokhoa ona e ka ba tlhahiso ea ethylene ho tloha methane. Ho fapana le oli, khase ea tlhaho, motsoako o ka sehloohong oa eona ke CH4, e nkoa e le mohloli o tsosolositsoeng oa thepa e tala. Tabeng ena, karabelo e etsahala ka mocheso oa likhato tse 500-9000 ka pel'a O2 le manganese kapa cadmium oxides. Likhase tse hlahisoang li arohanngoa ke ho noa, ho phophola ho tebileng, le ho lokisoa tlas'a khatello.

Libakeng tsa laboratori, ethylene e hlahisoa ke mekhoa ea ho felloa ke metsi ethanol le ethane dehydrogenation. Ethylene e ka hlahisoang e ka sebelisoa bakeng sa ho qaptjoa ha ethanol, polyethylene, ethylbenzene, vinyl chloride, antifreezes (lintho tse fokotsang mocheso o pholileng oa metsi ka likoloi) le mefuta e meng ea metsoako. Lefapheng la bongaka le bongaka ba likokoana-hloko, ethylene e sebelisoa e le lithethefatsi tse nang le lithethefatsi, ho hōla ha limela - ho potlakisa ho butsoa ha litholoana (li-orang, lilamunu, tamati, libanana, li-grapefruit, joalo-joalo).

Kopo ea Methane

Ho phaella moo, methane eo e na le mafura a bohlokoa, e boetse ke lisebelisoa tsa ho fumana methyl joala, chloroform, formaldehyde, plastics, joalo-joalo. Li-acetylene le lik'hemik'hale tse ling li entsoe ka methane.