
Okwu Mmalite
Sodium cyanide (NaCN) bụ ngwakọta kemịkalụ nke na-arụ ọrụ dị mkpa na ma ụlọ ọrụ metallurgy na kemịkalụ. N'agbanyeghị ọdịdị na-egbu egbu nke ukwuu, akụrụngwa kemịkalụ ya pụrụ iche na-eme ka ọ dị mkpa n'ọtụtụ usoro mmepụta ihe. Isiokwu a delves n'ime dị iche iche ngwa nke sodium cyanide n'ime akụkụ abụọ a dị mkpa ụlọ ọrụ mmepụta ihe.
Njirimara nke sodium cyanide
Sodium cyanide bụ kristal na-acha ọcha siri ike nwere isi almond na-esighị ike ma dị ilu. O nwere oke molar nke ihe dịka 49.01 g/mol. Ọ na-agbaze nke ukwuu na mmiri, yana ihe dị ka gram 46 na-agbaze na 100 milliliters mmiri n'ime ụlọ okpomọkụ. Ngwakọta ahụ nwere cation Na⁺ na CN⁻ anion. Ọ nwere ebe mgbaze nke ihe dịka 564 Celsius C yana ebe esi mmiri dị ihe dịka 1496 Celsius. Njirimara anụ ahụ na kemịkal ndị a bụ ihe dị mkpa iji ghọta ngwa ya na ọnọdụ ụlọ ọrụ dị iche iche.
Ngwa dị na Metallurgy
Mwepụta ọla edo na ọla ọcha
Otu n'ime ndị kasị mma-mara ngwa nke sodium cyanide n'ọla-ọcha di n'ọla-edo na ọla-ọcha n'ọla-ọcha nile ha. Usoro a, nke a maara dị ka Cyanidation, dabere n'ikike nke ion cyanide iji mepụta ogige kwụsiri ike na ọla edo na ọlaọcha. Na ọnụnọ oxygen na mmiri, sodium cyanide na-emeghachi omume na ọla edo na ọla dị ka ndị a:
4Au + 8NaCN + O₂+ 2H₂O → 4Na[Au(CN)₂]+ 4NaOH
Ọlaedo - cyanide complex [Au(CN)₂]⁻ na-agbaze na mmiri, na-enye ohere kewapụ ọla edo na matrix ore. A na-edozizi ihe ngwọta a iji nwetaghachi ọla edo dị ọcha. N'otu aka ahụ, enwere ike ịwepụta ọlaọcha site na iji usoro mmeghachi omume yiri nke ahụ. Cyanidation bụ usoro a na-ejikarị eme ihe na ụlọ ọrụ na-egwuputa ihe n'ihi oke arụmọrụ ya n'ịweghachi ọla dị oké ọnụ ahịa site na ọla ndị dị ala. Otú ọ dị, a ghaghị ịgbaso ụkpụrụ nchekwa siri ike na gburugburu ebe obibi n'oge usoro a iji gbochie mwepụta nke ogige cyanide na-egbu egbu.
Ogwe osisi
A na-ejikwa sodium cyanide na usoro electroplating. Na electroplating, a na-etinye obere oyi akwa nke ígwè n'elu ihe ọzọ. A na-eji bat bath electroplating dabeere na Cyanide maka ịkwanye ọla dị ka ọla kọpa, ọlaọcha, cadmium, na zinc. ion cyanide na bat na-arụ ọrụ dị iche iche. Ha na-enyere aka na mgbasa nke anode metal, na-eme ka ion ígwè na-adịgide adịgide maka ntinye. Cyanide na-arụkwa ọrụ dị ka onye na-emepụta ihe mgbagwoju anya, nke nwere ike imeziwanye ogo nke akwa akwa akwa akwa akwa. Ọ nwere ike ibelata oke ọka nke nkwụnye ego ahụ, na-eme ka ihe mkpuchi dị nro na nke dị n'otu. Dị ka ihe atụ, na ọlaọcha plating, sodium cyanide na plating bath na-enyere aka nweta a na-egbuke egbuke, adherent silver mkpuchi na mkpụrụ.
Okwu ike nke ígwè
N'okwu siri ike nke ígwè, a na-eji sodium cyanide mee ihe iji mee ka ihe siri ike dị n'elu. Usoro a na-agụnye ikpo ọkụ nchara n'ihu nke cyanide - nwere ogige. Cyanide na-emebi emebi na oke okpomọkụ, na-ahapụ carbon na nitrogen atom. Atọm ndị a na-agbasa n'elu igwe, na-eme ogige siri ike dị ka carbides ígwè na nitrides. Nke a na-ebute oyi akwa siri ike na nchara, ebe isi na-anọgide na-adị nro na ductile. Ojiji nke sodium cyanide ma ọ bụrụ na ị na-agbasi ike nwere ike ịkwalite nguzogide na ike ọgwụgwụ nke ihe nchara, na-eme ka ọ dị mma maka ngwa dị ka ngwo, ogwe, na bearings.
Ngwa na Chemical Industry
Nchịkọta nke ngwakọta Organic
Sodium cyanide bụ ihe mmalite dị oke mkpa maka njikọ nke ogige dị iche iche nke organic. A na-eji ya na-emepụta ọgwụ, plastik, akwa ákwà, na ihe ndị ọzọ. Dị ka ihe atụ, n’ụlọ ọrụ ndị na-emepụta ọgwụ, a na-eji ya emepụta ọgwụ ndị dị ka penicillin, vitamin B₆, na folic acid. Na njikọ nke penicillin, sodium cyanide na-etinye aka na usoro mmeghachi omume nke na-eduga n'ịmepụta njirimara β-lactam mgbanaka nke ọgwụ nje.
Na mmepụta nke plastik, a pụrụ iji sodium cyanide mee ihe na-emepụta monomers. Dịka ọmụmaatụ, a na-eji ya na mmepụta nke acrylonitrile, nke bụ monomer maka ịmepụta polyacrylonitrile (PAN), nke a na-ejikarị eme ihe na mmepụta nke eriri sịntetik na plastik. Mmeghachi omume nke sodium cyanide na kemịkalụ ndị ọzọ nwekwara ike iduga nguzobe nke etiti etiti dị iche iche nke a na-emeziwanye iji nweta njedebe achọrọ - ngwaahịa.
Mmepụta nke inorganic cyanides
A na-eji sodium cyanide mee ihe dị ka ihe mmalite maka mmepụta nke inorganic ndị ọzọ dị mkpa cyanides. Dịka ọmụmaatụ, a na-eji ya eme ihe Potassium cyanide (KCN), cyanide zinc (Zn(CN)₂), na cyanide ọla kọpa (CuCN). Ndị a inorganic Cyanides nwere ngwa nke ha na ụlọ ọrụ dị iche iche. A na-eji potassium cyanide mee ihe na electroplating, karịsịa n'itinye ọla edo na ọlaọcha. A na-eji zinc cyanide mee ihe na zinc - plating usoro, na cyanide ọla kọpa na-eji ọla kọpa electroplating na mmepụta nke ụfọdụ ọla kọpa dabeere alloys. Mmepụta cyanide ndị a na-adịghị ahụkebe na-agụnye iji nnu ígwè kwesịrị ekwesị meghachi omume sodium cyanide ma ọ bụ site na mmeghachi omume kemịkal ndị ọzọ.
Jiri na nyocha kemịkalụ
Na nyocha kemịkalụ, enwere ike iji sodium cyanide mee ihe na usoro nyocha ụfọdụ. Dịka ọmụmaatụ, na mkpebi nke ụfọdụ ion metal na ngwọta, cyanide nwere ike iji dị ka ihe mgbagwoju anya. Site n'ịgbakwụnye sodium cyanide na ngwọta nwere ion ígwè, a pụrụ ịmepụta metal - cyanide complexes. Ụlọ ndị a na-enwekarị njirimara, dị ka agba ma ọ bụ solubility, nke a pụrụ iji chọpụta ma ọ bụ tụọ ion ígwè. Otú ọ dị, n'ihi oke nsi nke sodium cyanide, a na-achịkwa iji ya mee ihe na nyocha nke kemịkal, na ụzọ ọzọ, ụzọ ndị na-adịghị egbu egbu na-ahọrọkarị mgbe ọ dị.
Ntụle Nchekwa
Ọ dị mkpa ịmara na sodium cyanide na-egbu egbu nke ukwuu. Ngosipụta na sodium cyanide, ma ọ bụ site na iku ume, ingestion, ma ọ bụ mmetụ akpụkpọ ahụ, nwere ike ịnwụ. Ọ na-arụ ọrụ site na itinye aka na iku ume cellular, na-egbochi sel iji oxygen mee ihe nke ọma. N'ime ojiji nke sodium cyanide nke ụlọ ọrụ mmepụta ihe, a ga-emerịrị usoro nchekwa siri ike. Ndị ọrụ na-ejikwa sodium cyanide ga-eyi ngwa nchebe onwe ha kwesịrị ekwesị, gụnyere uwe aka, anya, na nchebe iku ume. Ekwesịrị imepụta ebe nchekwa maka cyanide sodium iji gbochie ntapu na mwụfu, yana atụmatụ nzaghachi mberede ga-adịrịrị ma ọ bụrụ na ewepụtara ya na mberede. Nchekwa gburugburu ebe obibi bụkwa ihe kacha mkpa, n'ihi na ntọhapụ ọ bụla nke sodium cyanide n'ime gburugburu ebe obibi nwere ike ịkpata nnukwu nsonaazụ maka anụ ọhịa na isi mmiri.
mmechi
Sodium cyanide, n'agbanyeghị na ọ na-egbu egbu, nwere ngwa dị iche iche dị mkpa na ma ụlọ ọrụ metallurgy na chemical. Na metallurgy, ọ dị mkpa maka mmịpụta ọla dị oke ọnụ ahịa, ịkwanye igwe, na ịgbasi ike. N'ime ụlọ ọrụ kemịkalụ, ọ na-eje ozi dị ka isi mmalite ihe maka njikọ nke ọtụtụ ogige organic na inorganic ma nwee ngwa na nyocha kemịkalụ. Agbanyeghị, ojiji nke sodium cyanide ga-esonyere ya na nchekwa siri ike yana usoro nchekwa gburugburu ebe obibi iji belata ihe egwu ndị metụtara ogige a na-egbu egbu. Ka teknụzụ na-aga n'ihu, a na-agbasi mbọ ike iji mepụta ụzọ ndị ọzọ nwere ike iru otu ebumnuche ụlọ ọrụ na-ejighi ụdị kemịkal dị ize ndụ, mana ugbu a, sodium cyanide ka bụ ihe dị mkpa n'ọtụtụ usoro mmepụta ihe.
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