
Sodium cyanide, e nang le foromo ea lik'hemik'hale NaCN, ke motsoako o laelang tlhokomelo e kholo ka lebaka la thepa ea eona e ikhethang, lisebelisoa tse sa tšoaneng, le chefo e phahameng. Sengoliloeng sena se ikemiselitse ho fana ka kakaretso e felletseng ea Sodium cyanide, ho hlahloba sebopeho sa eona, thepa ea 'mele le ea lik'hemik'hale, mekhoa ea tlhahiso, litšebeliso, le lintlha tse amanang le polokeho le tikoloho.
Sebopeho sa Lik'hemik'hale le Thepa
Sodium cyanide ke motsoako oa ionic o entsoeng ka sodium cations (Na+) le cyanide anions (CN-). Ion ea cyanide e na le sebopeho sa mola, se nang le athomo ea khabone e kopantsoeng hararo ho athomo ea naetrojene. Sebopeho sena se susumetsa ts'ebetso ea motsoako le chefo.
Matlo a 'mele
Ponahalo: Hangata, Sodium cyanide e hlahisa e le bosoeu, bo tiileng ba kristale, empa e ka boela ea fumanoa ka phofo kapa sebopeho sa kotola.
Solubility: E qhibiliha haholo ka metsing, 'me hoo e ka bang ligrama tse 400 li khona ho qhibiliha ka lithareng e le' ngoe ea metsi ka 25°C. Sollubility ena e phahameng e etsa hore e be molemo lits'ebetsong tse fapaneng tsa indasteri, empa hape e hlahisa matšoenyeho mabapi le ho qhalla ka phoso le ho tšoaroa ka tsela e sa lokelang.
Lintlha tse qhibidihang le tse belang: Sodium cyanide e na le sebaka se batlang se le holimo sa 563.7 ° C le ntlha e belang ea 1496 ° C, e bontšang matla a maqhama a ionic a tšoereng motsoako hammoho.
segokanyipalo: Boima ba eona ke hoo e ka bang 1.6 grams cubic centimeter ka 'ngoe, e kholo ho feta ea metsi, e leng se etsang hore e tetebele ka har'a metsoako ea metsi.
Mefuta ea Lik'hemik'hale
Motheo: Sodium cyanide ke motheo o matla o itekanetseng. Ha e le ka har'a mokelikeli o nang le metsi, e etsoa ka hydrolysis. Ts'ebetso ena e hlahisa li-ion tsa hydroxide (OH-), ho etsa hore tharollo e be alkaline.
Reactivity with Metals: E 'ngoe ea likarolo tse hlokomelehang tsa sodium cyanide ke kamano ea eona e matla bakeng sa litšepe. Liindastering tse kang Ho rafa khauta, ka pel'a oksijene le metsi, sodium cyanide e arabela ka khauta. Karabelo ena e etsa mokelikeli o qhibilihang oa khauta oa cyanide, o nolofalletsang ho ntšoa ha khauta ho tsoa ore.
Karabelo le Acids: Sodium cyanide e sebetsana ka matla le asiti ho hlahisa hydrogen cyanide, khase e chefo haholo. Esita le li-acid tse fokolang li ka baka karabelo ena, kahoo ho bohlokoa ho sebetsana le sodium cyanide ka tlhokomelo e feteletseng ho pota-potile lintho tse nang le asiti.
Liphetoho tsa Oxidation le Phokotso: Sodium cyanide e ka nka karolo ho oxidation le karabelo ea phokotso. Li-oxidizing agents tse matla li ka e kenya linthong tse chefo tse fokolang, athe tlas'a maemo a itseng, e ka sebetsa e le ntho e fokotsang liphetoho tsa lik'hemik'hale.
Mekhoa ea Tlhahiso
Tlhahiso ea sodium cyanide e kenyelletsa mekhoa e mengata ea lik'hemik'hale, 'me mokhoa oa Andrussow le mokhoa oa Castner ke oona o tloaelehileng ka ho fetisisa.
Mokhoa oa Andrussow
Ona ke mokhoa o sebelisoang haholo indastering oa ho hlahisa sodium cyanide. E kenyelletsa ho sebetsana le methane, ammonia, le oksijene holim'a sesebelisoa sa platinum mochesong o phahameng, hoo e ka bang 1000°C. Hydrogen cyanide e hlahisoang ebe e kopana le sodium hydroxide ho etsa sodium cyanide.
Mokhoa oa Castner
Ts'ebetsong ea Castner, sodium amide e kopana le carbon mocheso o phahameng, ho pota 800 - 1000 ° C, ho hlahisa sodium cyanide le khase ea hydrogen. Leha ho le joalo, ts'ebetso ena ha e sebelisoe hangata kajeno hobane e hloka matla a mangata 'me e hlahisa sehlahisoa se nang le bohloeki bo batlang bo le tlase ha bo bapisoa le ts'ebetso ea Andrussow.
Lisebelisoa tsa sodium cyanide
Sodium cyanide e na le lisebelisoa tse ngata tse fapaneng ho pholletsa le liindasteri tse fapaneng, haholo-holo ka lebaka la thepa ea eona e ikhethang ea lik'hemik'hale.
Meepo ea Khauta le Silevera
Tšebeliso e 'ngoe ea bohlokoa ka ho fetisisa ea sodium cyanide ke ho ntša khauta le silevera ho tloha ores. Ts'ebetso ena, e bitsoang cyanidation, e kenyelletsa ho qhaqha litšepe tsa bohlokoa ka har'a motsoako oa sodium cyanide ha oksijene e le teng. Sena se etsa metsoako ea tšepe e qhibilihang ea cyanide e ka arohanngoang le ore ebe e tsoela pele ho sebetsoa ho fumana khauta e hloekileng kapa silevera. Cyanidation e sebetsa haholo bakeng sa ho ntša litšepe tsa bohlokoa ho tsoa ho ore ea boemo bo tlase, e leng se etsang hore e be mokhoa oa bohlokoa indastering ea merafo.
K'hemik'hale ea Lik'hemik'hale
Sodium cyanide ke karolo ea bohlokoa ea ho haha motsoako oa metsoako e fapaneng ea lik'hemik'hale. E sebelisoa ha ho etsoa li-nitriles, tse sebetsang e le li-intermediate tsa bohlokoa tlhahisong ea meriana, lipolasetiki le likhoele tsa maiketsetso. Ka mohlala, ha ho qaptjoa acrylonitrile, monoma ea bohlokoa bakeng sa ho etsa likhoele tsa polyacrylonitrile tse sebelisoang ka masela le tlhahiso ea carbon fiber, sodium cyanide e sebetsa e le reactant.
electroplating
ka electroplating Indasteri, sodium cyanide e sebelisoa libakeng tse ling tsa ho hlapa ho matlafatsa boleng le ho khomarela liphahlo tsa tšepe. E thusa ho kenya litšepe tse kang koporo, silevera, le khauta holim'a li-substrates tse fapaneng, e leng se etsang hore ho be le qetello e ts'oanang le e tšoarellang. Leha ho le joalo, ka lebaka la chefo ea eona, mekhoa e meng ea ho betla e seng cyanide e ntse e ntlafatsoa le ho amoheloa.
Tlhokomelo ea likokoanyana
Sodium cyanide e kile ea sebelisoa e le sebolaea-rodenticide le likokoanyana nakong e fetileng. Chefo ea eona e phahameng e etsa hore e atlehe ho laola bongata ba likokoanyana. Empa linaha tse ngata li thibetse tšebeliso ea eona sebakeng sena ka lebaka la likotsi tse ka bang teng bophelong ba batho le tikolohong.
Likopo tsa Laboraro
Litlhophisong tsa laboratori, sodium cyanide e sebelisoa e le reagent liketsong tse fapaneng tsa lik'hemik'hale. Hangata e sebelisoa ho organic synthesis ho kenyelletsa sehlopha sa cyanide (-CN) ka har'a metsoako ea manyolo, e ka fetoloang ho feta ho etsa lihlahisoa tse ngata.
Mehopolo ea Chefo le Tšireletseho
Sodium cyanide e chefo haholo 'me e beha likotsi tse kholo bophelong ba batho le tikolohong.
Mokhoa oa Chefo
Ha sodium cyanide e kena 'meleng, e robeha ho lokolla li-ion tsa cyanide (CN-). Li-ion tsena li tlamella ho athomo ea tšepe ho cytochrome c oxidase, e leng enzyme e amehang ketane ea lipalangoang tsa elektronike ea sele. Ho tlama hona ho sitisa tšebetso ea enzyme, ho thibela lisele ho sebelisa oksijene ka katleho. Ka lebaka leo, lisele ha li khone ho hlahisa matla ka ho phefumoloha ha aerobic, e leng se lebisang lefung la lisele le, maemong a boima, lefu la sebōpuoa.
Litsela tsa Pontšo
Inhalation: Ho hema lerōle kapa mosi oa sodium cyanide ho ka lebisa kapele liphellong tse chefo. Esita le ho hema hanyenyane ho ka beha bophelo kotsing.
Ho kenella: Ho koenya sodium cyanide ho kotsi haholo. Tekanyo e nyane haholo, hangata e ka tlase ho limiligrama tse 50 - 100 ho motho e moholo ea mahareng, e ka bolaea.
Ho Kopana le Dermal: Ho kopana ha letlalo le sodium cyanide ho ka lumella motsoako hore o kene 'meleng, haholo-holo haeba ho e-na le maqeba kapa maqeba. Ho kopana ha letlalo nako e telele kapa khafetsa ho ka baka ho teneha ha letlalo, ho chesa, le chefo ea tsamaiso.
Matšoao a Chefo
Matšoao a chefo ea sodium cyanide a ka fapana ho latela tsela le boholo ba ho pepeseha. Matšoao a pele a ka ’na a akarelletsa hlooho e opang, ho tsekela, bofokoli, ho nyekeloa ke pelo, ho hlatsa, ho hema ka potlako le ho ba le maikutlo a ho tlama ha sefuba. Matšoao a tsoetseng pele e ka ba ho tsieleha, ho lahleheloa ke kelello, ho hlōleha ho phefumoloha le ho tšoaroa ke pelo. Maemong a matla, lefu le ka etsahala ka mor'a metsotso e seng mekae feela.
Litšireletso tsa tšireletso
Ka lebaka la chefo ea eona e feteletseng, mehato e tiileng ea polokeho e tlameha ho lateloa ha ho sebelisoa sodium cyanide. Basebetsi bohle ba amehang ho e tšoara, ho e boloka, kapa ho e tsamaisa ba lokela ho fumana koetliso e phethahetseng mabapi le thepa ea eona, likotsi le mekhoa e sireletsehileng ea ho sebetsana le eona. Basebetsi ba lokela ho apara lisebelisoa tse loketseng tsa ho itšireletsa, ho kopanyelletsa le liatlana tse hananang le lik'hemik'hale, likhalase tsa mahlo, lisebelisoa tsa ho hema le liaparo tsa tšireletso. Libaka tsa mosebetsi li lokela ho ba le moea o hloekileng ho fokotsa kotsi ea ho hema mosi kapa lerōle. Sodium cyanide e lokela ho bolokoa ka mokhoa o sireletsehileng sebakeng se nang le moea o motle hole le li-acids, li-oxidizing agents, le lintho tse ling tse sa lumellaneng. Haeba ho tšolloa, mekhoa e nepahetseng ea ho thibela le ho hloekisa e lokela ho etsoa hang-hang ho thibela ho tsoa ha mosi o chefo. Lisebelisoa tse sebelisang kapa tse bolokang sodium cyanide li lokela ho ba le merero e felletseng ea karabelo ea tšohanyetso, ho kenyeletsoa mekhoa ea ho sebetsana le ho qhalla, ho pepeseha le maemo a tšohanyetso a bongaka. Lisebelisoa tsa thuso ea pele le li-antidote, tse kang hydroxocobalamin kapa sodium nitrite/sodium thiosulfate, li lokela ho fumaneha habonolo bakeng sa ho phekola chefo ea cyanide.
Tšusumetso ea tikoloho
Ho lokolloa ha sodium cyanide tikolohong ho ka ba le litlamorao tse mpe. Haeba e kena metsing, e ka ba kotsi haholo ho lintho tse phelang metsing. Li-ion tsa cyanide li chefo ho litlhapi, liphoofolo tse se nang lesapo la mokokotlo le lintho tse ling tse phelang metsing, 'me li sitisa tikoloho ea metsing. Ho phaella moo, ha sodium cyanide e hydrolyze ka metsing, e ka hlahisa khase ea hydrogen cyanide, e ka kenang sepakapakeng ’me ea tlatsetsa tšilafalong ea moea. Ho qhalla ha sodium cyanide mobung ho ka silafatsa mobu, ho etsa hore o se lokele kholo ea semela. Cyanide e ka ikamahanya le likaroloana tsa mobu 'me e ka lula e le tikolohong nako e telele, ho itšetlehile ka maemo a mobu le boteng ba likokoana-hloko tse ka senyang. Joalokaha ho boletsoe pejana, ha sodium cyanide e kopana le asiti kapa mongobo moeeng, e ka ntša khase ea hydrogen cyanide, e leng se silafatsang moea se chefo haholo se ka ntšang batho kotsi, liphoofolo le limela tse haufi.
fihlela qeto e
Sodium cyanide ke motsoako o nang le lik'hemik'hale tse ikhethang tse etsang hore e be molemo lits'ebetsong tse fapaneng tsa indasteri. Leha ho le joalo, chefo ea eona e feteletseng le monyetla oa ho senya tikoloho li ke ke tsa hlokomolohuoa. Ho bohlokoa ho liindasteri tsohle tse sebelisang sodium cyanide ho kenya tšebetsong mehato e tiileng ea polokeho ho sireletsa basebetsi, sechaba le tikoloho. Ho feta moo, boiteko bo tsoelang pele bo lokela ho etsoa ho hlahisa mekhoa e meng le metsoako e ka finyellang lipakane tse tšoanang tsa indasteri ntle le likotsi tse amanang le sodium cyanide. Ka ho utloisisa thepa ea eona, litšebeliso le likotsi, re ka sebeletsa ho fokotsa litlamorao tse mpe ha re ntse re sebelisa thepa ea eona ea bohlokoa ha ho hlokahala.
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