Indima ye-Sodium Cyanide ku-Metal Electroplating

Isingeniso

I-Electroplating iyinqubo yezimboni esetshenziswa kakhulu ehlanganisa ukufaka ungqimba oluncane lwensimbi endaweni engaphansi, ngokuvamile ngokwezinjongo ezinjengokuvikela ukugqwala, ukuthuthukisa ukubukeka, nokuthuthukisa izici ezingaphezulu zento. Isodium i-cyanide (I-NaCN), naphezu kwemvelo yayo enobuthi obukhulu, idlala indima ebalulekile ezinqubweni eziningi ze-electroplating. Lesi sihloko sicubungula imisebenzi ethile kanye nokubaluleka kwayo I-sodium cyanide in I-Metal electroplating.

Izakhiwo Zekhemikhali ze-Sodium Cyanide Ezihambisana Ne-Electroplating

I-sodium cyanide iyinhlanganisela ye-inorganic. Incibilika kakhulu emanzini, okuyindawo eyinhloko yokusetshenziswa kwayo ekugezeni kwe-electroplating. Esixazululweni esinamanzi, iyahlukana ibe ion sodium (Na+) kanye ne-cyanide ion (CN-). Ama-ion e-cyanide abaluleke kakhulu ekufakeni i-electroplating njengoba enomkhuba oqinile wokwakha ama-complexes ane-ion yensimbi.

Imisebenzi Emabhathini e-Electroplating

Ubunzima nge-Metal ions

Omunye wemisebenzi eyinhloko ye I-Sodium Cyanide ku-electroplating ukwenza izinkimbinkimbi zensimbi-cyanide nama-ion ensimbi esixazululweni sokucwenga. Isibonelo, endaweni yokugeza ye-copper electroplating, i-sodium cyanide ihlangana nama-ion ethusi (kusuka kusawoti wethusi njenge-copper sulfate noma i-cyanide yethusi). Ama-ion e-cyanide asebenzisana nama-ion e-copper ukuze akhe izingxenye ezizinzile ze-copper-cyanide, ezifana ne-Cu(CN)₂⁻ kanye ne-Cu(CN)₃²⁻. Lezi zinkimbinkimbi zinokuzinza okuhlukile kanye nokuhlukaniswa kwe-dissociation kuye ngokuthi isilinganiso se-ion yethusi kuya kuma-ion cyanide esixazululweni. Ukwakheka kwalezi zinkimbinkimbi kubalulekile ngoba kuthinta ukuziphatha kwama-ion ensimbi ngesikhathi senqubo ye-electroplating.

Ukunciphisa i-anode Polarization

Kuseli ye-electroplating, i-anode iwumthombo wama-ion ensimbi wokufakwa ku-cathode (i-substrate iyaputshwa). I-anode polarization ingenzeka lapho indawo ye-anode imbozwa ungqimba lwemikhiqizo yokusabela noma lapho izinga lokuncibilika kwensimbi ku-anode linganele ukugcina ukutholakala okungapheli kwama-ion ensimbi esixazululweni. I-sodium cyanide isiza ukunciphisa i-anode polarization. Ama-ion e-cyanide kusixazululo asabela ngensimbi endaweni ye-anode, enze kube lula ukuhlakazeka kwensimbi ye-anode. Ngokwesibonelo, ku-anode yethusi, ama-ion e-cyanide ahlangana nama-athomu ethusi ukuze akhe izingxube ze-copper-cyanide ezincibilikayo, abe esefaka isixazululo. Lokhu kuqinisekisa ukuhlinzekwa okufanayo okufanayo nokuqhubekayo kwama-ion ensimbi asuka ku-anode, okuholela ekuzinzeni nasekusebenzeni kwe-electroplating inqubo ephumelelayo.

Ukuzinzisa Isixazululo se-Electroplating

I-sodium cyanide nayo inomthelela ekuzinzeni kwesisombululo se-electroplating. Ama-ion ensimbi asesisombululo angasabela nezinye izakhi kubhavu, njengokungcola noma amanzi, ukuze akhe amanzi noma abhekane nokusabela okungafuneki ohlangothini. Ukwakhiwa kwezakhiwo ze-metal-cyanide kuzinzisa ama-ion ensimbi, okubavimbele ukuba babambe iqhaza kulokhu kusabela okungafuneki. Isibonelo, ama-copper-cyanide complexes akhiwe phambi kwe-sodium cyanide azinzile kunama-ion ethusi amahhala, anciphisa amathuba okuba nemvula ye-copper hydroxide kubhavu ye-alkaline electroplating.

Ukuthuthukisa i-Cathode Polarization

Ku-cathode, lapho ama-ion ensimbi encishiswa khona futhi afakwe ku-substrate, i-polarization efanele ibalulekile ukuze kuzuzwe ukunamathela kwensimbi okubushelelezi nokunamathelayo. I-sodium cyanide ithuthukisa i-cathode polarization. Izinkimbinkimbi zensimbi-cyanide zikhulu ngokuqhathaniswa futhi zinezinga elithile lokushaja delocalization ngenxa yokuxhumana nama-ion cyanide. Njengoba lezi zinkimbinkimbi zisondela ku-cathode, inqubo yokunciphisa ilawulwa kakhulu uma kuqhathaniswa nokunciphisa i-ion yensimbi yamahhala. Lokhu kubangela ukumiswa okufanayo kwensimbi endaweni ye-cathode. I-cathode polarization ethuthukisiwe iholela ekukhuleni kwekristalu encane phakathi nenqubo yokubeka, okuholela ekuhlanganisweni kwensimbi okucolisekile nokufana okufana nokunamathela kangcono ku-substrate.

Izicelo Ezinhlelweni Ezihlukene Zokucwenga Izinsimbi

I-Copper Plating

Ku-electroplating yethusi, i-sodium cyanide isetshenziswa kakhulu, ikakhulukazi ezinhlelweni lapho kudingeka khona idiphozithi yethusi enamathelayo esezingeni eliphezulu. Amabhavu okugeza ethusi asekelwe ku-cyanide anikeza amandla amahle kakhulu okujikijela, okusho ukuthi angafaka ungqimba olufanayo lwethusi ezintweni ezinomumo oyinkimbinkimbi. Izinkimbinkimbi ze-copper-cyanide ezakhiwe phambi kwe-sodium cyanide zivumela ukulawula okunembile izinga lokubeka ithusi, okuholela ekuqedeni kwethusi okubushelelezi nokugqamile. Lokhu kuyenza ifaneleke izinhlelo zokusebenza ezinjengokuhlobisa ubucwebe, izixhumi zikagesi, namabhodi esekethe aphrintiwe.

I-Silver Plating

I-sodium cyanide nayo iyisakhi esibalulekile ekugezeni isiliva electroplating. Ngokufana ne-copper plating, ama-ion e-cyanide enza ama-silver-cyanide complexes azinzile. Lezi zinkimbinkimbi zisiza ekuzuzeni ukunamathela kwesiliva okukhanyayo, okubushelelezi, nokunamathelayo. Ukufakwa kwesiliva okunamabhafu asekelwe ku-cyanide kuvame ukusetshenziswa ekukhiqizeni i-tableware, izinto zokuhlobisa, kanye nokuxhumana kukagesi, lapho kufunwa khona ukuguquguquka okuphezulu nokumelana nokugqwala kwesiliva.

Ukuphathwa Kwegolide

I-electroplating yegolide ivamise ukusebenzisa i-sodium cyanide ukwenza izinkimbinkimbi zegolide-cyanide. Ukusetshenziswa kwe-sodium cyanide ezindaweni zokugeza zegolide kuvumela ukubekwa kongqimba oluncane lwegolide olunamathelayo oluhle kakhulu. Ukufakwa kwegolide kusetshenziswa kabanzi embonini ye-elekthronikhi ezingxenyeni ezifana nezixhumi noxhumana nabo ukuze kuthuthukiswe ukuqhutshwa kukagesi nokuvimbela ukugqwala. Ibuye isetshenziswe embonini yobucwebe ngezinhloso zokuhlobisa. Ikhono lokulawula inqubo yokubeka ngokunembile usebenzisa okugeza okusekelwe ku-sodium cyanide liqinisekisa ukuthi ukumbozwa kwegolide kunezinto ezifiswayo, njengombala, ubulukhuni, nokuqina.

Ukucatshangelwa Kwezokuphepha

Kubalulekile ukuqaphela ukuthi i-sodium cyanide iyingozi kakhulu. Ukuhogela, ukumunca, noma ukuthinta isikhumba nesodium cyanide noma izixazululo zayo kungabulala. Ingase futhi isabele nama-asidi ukukhiqiza igesi ye-hydrogen cyanide enobuthi kakhulu. Ngakho-ke, izivumelwano zokuphepha eziqinile kufanele zilandelwe lapho kusingathwa i-sodium cyanide emisebenzini ye-electroplating. Izisebenzi kufanele zinikezwe ukuqeqeshwa okufanele mayelana nokuphatha leli khemikhali ngendlela ephephile, okuhlanganisa nokusetshenziswa kwezinto zokuzivikela ezifanele njengamagilavu, izibuko, nokuvikela ukuphefumula. Izindawo zokufaka ugesi kumele zibe nezindawo zokusebenza ezinomoya ohlanzekile kanye nezinhlelo zokubhekana nezimo eziphuthumayo uma kwenzeka kuchitheka noma ukuchayeka ngengozi. Ukwengeza, ukulahlwa kwemfucuza equkethe i-sodium cyanide kufanele kwenziwe ngokuhambisana nemithetho eqinile yezemvelo ukuze kuvinjelwe ukungcoliswa kwemithombo yamanzi kanye nokulimaza impilo yasemanzini.

Isiphetho

I-sodium cyanide idlala indima eminingi futhi ebalulekile ezinqubweni ze-electroplating zensimbi. Ikhono layo lokwenza izingxube ze-metal-cyanide, ukunciphisa i-anode polarization, ukuzinzisa isisombululo se-electroplating, kanye nokuthuthukisa i-cathode polarization kuyenza ibe yingxenye ebalulekile ekuzuzeni ukumbozwa kwensimbi kwekhwalithi ephezulu. Kodwa-ke, ngenxa yobuthi bayo obukhulu, ukuphathwa okuphephile nokusetshenziswa kwe-sodium cyanide ekufakweni kwe-electroplating kubaluleke kakhulu. Njengoba ubuchwepheshe buthuthuka, kwenziwa imizamo yokuthuthukisa izinqubo ezihlukile, ezinobuthi obuncane be-electroplating, kodwa okwamanje, i-sodium cyanide isalokhu iyisithako esiyinhloko ekusetshenzisweni kwe-electroplating yezimboni eziningi.