I-Sodium Cyanide: Izakhiwo, Izingozi, Nezinyathelo Zokuphepha

Isingeniso

Sodium i-cyanide (I-NaCN) iyinhlanganisela ye-inorganic edlala izindima ezibalulekile ezinhlelweni ezahlukahlukene zezimboni. Kodwa-ke, imvelo yayo enobuthi obuphezulu idinga ukuphathwa okuqinile kanye nezinqubo zokuphepha. Lesi sihloko sihlola izakhiwo, ukusetshenziswa, kanye nezingozi ezingaba khona ezihlobene nazo I-sodium cyanide.

Amakhemikhali namaPhysical Properties

I-Chemical Formula kanye neSakhiwo

I-Sodium cyanide inefomula yamakhemikhali i-NaCN. Iyinhlanganisela ye-ionic eyakhiwe yi-sodium cation (Na⁺) kanye ne-cyanide anion (CN⁻). Esakhiweni sekristalu, ama-ion e-sodium kanye ne-cyanide ahlelwe ku-lattice efana neye-sodium chloride. I-Carbon i-athomu eqenjini le-cyanide yakha isibopho esiphindwe kathathu ne-athomu ye-nitrogen, okunikeza i-CN⁻ ion ukusebenza kwayo okuhlukile.

Izici Physical

• ukubukeka: I-sodium cyanide ngokuvamile ivela njengokuqinile okumhlophe, okucwebezelayo noma okuyimpushana.

• iphunga: Ngendlela eyomile, ngokuvamile ayinaphunga. Kodwa-ke, lapho iphendulana nomswakamo osemoyeni noma emanzini, ingakhiqiza igesi ye-hydrogen cyanide (HCN), enephunga elipholile, elinjenge-alimondi. Kubalulekile ukuqaphela ukuthi akuwona wonke umuntu ongakwazi ukubona iphunga le-hydrogen cyanide, njengoba ikhono lokwenza kanjalo linqunywa izakhi zofuzo.

• Amaphuzu Ancibilikayo Nawabilisa: Inephuzu lokuncibilika eliphakeme uma kuqhathaniswa elingu-563.7 °C kanye nendawo yokubilisa engu-1496 °C.

• solubility: I-sodium cyanide inyibilika kakhulu emanzini. Eqinisweni, amagremu angu-38.9 e-NaCN angancibilika kumamililitha angu-100 amanzi ku-20 °C. Iphinde inyibilike kwezinye izincibilikisi ze-polar njenge-ammonia, i-ethanol, ne-methanol.

I-Chemical Reactivity

• I-Hydrolysis: I-sodium cyanide usawoti we-asidi ebuthakathaka, i-hydrogen cyanide (HCN). Lapho ihlangana namanzi, ingena ngaphansi kwe-hydrolysis, ikhiqize igesi ye-hydrogen cyanide. Isibalo samakhemikhali salokhu kusabela sithi: NaCN + H₂O ⇌ NaOH + HCN. Lokhu kusabela kungenzeka ngisho nangomswakama womkhathi, okwenza kuqine I-Sodium Cyanide umthombo ongaba khona wokukhishwa kwegesi enobuthi.

• Ukusabela kwe-Acid: Isabela ngokushesha nama-asidi. Ngokwesibonelo, nini i-sodium cyanide isabela nge-sulfuric acid (H₂SO₄), ukusabela okulandelayo kwenzeka: 2NaCN + H₂SO₄ → Na₂SO₄ + 2HCN. Ukukhishwa kwegesi ye-hydrogen cyanide ekuphenduleni okunjalo kuyingozi kakhulu ngenxa yobuthi bayo obuphezulu.

• Metal Complex Formation: I-sodium cyanide inobudlelwane obuqinile bezinsimbi. Lapho kukhona umoya-mpilo namanzi, ingancibilikisa izinsimbi eziyigugu njengegolide nesiliva. Egolideni, ukusabela kungokulandelayo: 4Au + 8NaCN + O₂ + 2H₂O → 4Na[Au(CN)₂] + 4NaOH. Le ndawo isetshenziswa kabanzi embonini yezimayini ukuze kukhishwe igolide.

Ukulungiselela

Ngokwezimboni, i-sodium cyanide ikhiqizwa ikakhulukazi ukusabela kwe-hydrogen cyanide (HCN) ne-sodium hydroxide (NaOH). Isibalo samakhemikhali salokhu kusabela sithi: HCN + NaOH → NaCN + H₂O. I-hydrogen cyanide ingakhiqizwa ngezindlela ezihlukahlukene, njengenqubo ye-Andrussow, ebandakanya ukusabela kwe-methane (CH₄), i-ammonia (NH₃), ne-oxygen (O₂) phezu kwe-platinum - i-rhodium catalyst emazingeni okushisa aphezulu.

Usetshenziswa

Imboni Yezokumbiwa

Okunye okubaluleke kakhulu ukusetshenziswa kwe-sodium cyanide kusekukhishweni kwegolide nezinye izinsimbi eziyigugu ku-ores. Inqubo, eyaziwa ngokuthi I-Cyanidation, kuhilela ukusetshenziswa kwezixazululo ze-sodium cyanide ukuze kuncibilike igolide nesiliva emigodini yazo. Izinsimbi ezincibilikisiwe zibe sezitholwa ngochungechunge lwezinqubo zamakhemikhali. Le ndlela isetshenziswa kakhulu ngenxa yokusebenza kahle kwayo kanye nezindleko eziphansi uma kuqhathaniswa nokukhipha izinsimbi eziyigugu kuma-ore asezingeni eliphansi.

Ukukhiqiza Amakhemikhali

I-sodium cyanide isebenza njengengxenye ebalulekile ekukhiqizeni izinhlobonhlobo zamakhemikhali. Isetshenziswa ekuhlanganiseni ama-nitriles, okuyizingqimba ezibalulekile zokwakha embonini yezemithi, ye-agrochemical, kanye ne-polymer. Ngokwesibonelo, isetshenziselwa ukukhiqiza i-cyanuric chloride, ephinde isetshenziswe ekukhiqizeni imithi yokubulala ukhula, izibulala-magciwane, nodayi bezindwangu.

I-Electroplating

Embonini ye-electroplating, i-sodium cyanide isetshenziswa kwamanye okugeza okucwenga, ikakhulukazi ekufakeni izinsimbi njengethusi, isiliva, negolide. Kuyasiza ekwakheni umfaniswano kanye nokunamathela kwensimbi enamathela ku-substrate. Ama-ion e-cyanide endaweni yokugeza yokucwenga enama-ion ensimbi, asiza ukubekwa kongqimba olubushelelezi futhi olulinganayo lwensimbi.

Izingozi Zezempilo

Ubuthi Mechanism

I-sodium cyanide inobuthi kakhulu. Uma imuncwa, ihogelwa, noma imuncwa esikhumbeni, iyahlukana ukuze ikhiphe ama-ion cyanide (CN⁻). Lawa ma-ion e-cyanide abophezela ku-iron(III) ku-cytochrome c oxidase, i-enzyme ku-mitochondria yamaseli. Lokhu kubophezela kuvimbela umsebenzi we-enzyme, kuvimbela ukudluliswa kwama-electron ochungechungeni lokuthutha lwama-electron. Ngenxa yalokho, amangqamuzana awakwazi ukusebenzisa umoya-mpilo ngokuphumelelayo, okuholela esimweni sokuphefumula kwamaselula. Ngisho nenani elincane le-sodium cyanide lingabulala.

Acute Exposure Effects

• Ukungenisa: Ukungenisa i-sodium cyanide kungaholela ekuqalekeni ngokushesha kwezimpawu. Izimpawu zokuqala zingase zihlanganise ukusha emlonyeni nasemphinjeni, kulandele isicanucanu, ukuhlanza, ubuhlungu besisu, nesifo sohudo. Njengoba ubuthi buqhubeka, kungase kube nobunzima bokuphefumula, ukushaya kwenhliziyo okusheshayo noma okungajwayelekile, isiyezi, ikhanda elibuhlungu, nokudideka. Izimo ezimbi kakhulu zingabangela ukuquleka, ukulahlekelwa ukwazi, nokufa phakathi nemizuzu ukuya emahoreni.

• Inhalation: Ukuhogela igesi ye-hydrogen cyanide, engakhishwa ku-sodium cyanide lapho kunomswakama noma ama-asidi, nakho kuyingozi kakhulu. Izimpawu zokuchayeka ekuhogeleni zingase zihlanganise ukucasuka komgudu wokuphefumula, ukukhwehlela, ukuphelelwa umoya, ukucinana kwesifuba, nomuzwa wokuphelelwa umoya. Ukuchayeka ekuhogeleni okusezingeni eliphezulu kungaholela ngokushesha ekuboshweni kokuphefumula nokufa.

• Ukuxhumana Kwesikhumba Namehlo: Ukuxhumana okuqondile ne-sodium cyanide kungabangela ukucasuka nokushiswa kwesikhumba namehlo. Ukuthintana kwesikhumba isikhathi eside noma okubanzi nakho kungavumela i-cyanide ukuthi imuncwe emgudwini wegazi, okuholela kushevu wesistimu.

Imithelela Yokuchayeka Okungapheli

Ukuchayeka okungamahlalakhona emazingeni aphansi e-sodium cyanide akuvamile kangako kodwa kusengaba nemithelela emibi kakhulu yezempilo. Kungase kubangele izimpawu ezinjengobuthakathaka, ukukhathala, ikhanda elibuhlungu, izinkinga zenkumbulo, nokulimala kwendlala yegilo. Ukuchayeka isikhathi eside kungase futhi kwandise ingozi yokuba nokuphazamiseka kwemizwa futhi kungase kube nemiphumela emibi ohlelweni lwenhliziyo nemithambo yegazi nelokuphefumula.

Ukuphepha nokuphatha

Storage

I-sodium cyanide kufanele igcinwe endaweni epholile, eyomile, enomoya omuhle kude nemithombo yokushisa, yokuthungela, kanye nomswakama. Kumele igcinwe ngokuhlukana nama-acids, ama-oxidizing agents, nezinye izinto ezingahambelani. Iziqukathi zokugcina kufanele zivalwe ngokuqinile futhi zenziwe ngezinto ezimelana nokugqwala nge-sodium cyanide, njenge-high - density polyethylene noma insimbi. Indawo yokugcina kufanele imakwe ngokucacile ngezimpawu eziyisixwayiso ezifanele, futhi ukufinyelela kufanele kukhawulelwe kubasebenzi abagunyaziwe kuphela.

Transportation

Lapho uthutha i-sodium cyanide, imithetho eqinile kufanele ilandelwe. Ihlukaniswa njengento eyingozi, futhi ukuthutha kwayo kungaphansi kwemithetho yezokuthutha yamazwe ngamazwe kanye nekazwelonke. Iziqukathi ezisetshenziselwa ukuthutha kumele zihlangabezane nezidingo ezithile zokuklama nezokwakha ukuvimbela ukuvuza. Ngesikhathi sokuthutha, impahla kumele ivikelwe ekulimaleni ngokomzimba, emazingeni okushisa aphezulu, nokuxhumana nezinye izinto ezingahambelani. Izinhlelo zokusabela ezimeni eziphuthumayo kanye nemishini yokuchitheka kufanele kube khona ngesikhathi sokuthutha uma kwenzeka kuba nengozi.

Ukusingatha Izinyathelo Zokuqapha

• Izinsiza Zokuvikela (i-PPE): Izisebenzi eziphethe i-sodium cyanide kufanele zigqoke i-PPE efanele, okuhlanganisa amagilavu ​​angazwani namakhemikhali, izibuko zokuphepha noma izihlangu zobuso, izingubo zokuzivikela, nokuvikela ukuphefumula. Izisetshenziswa zokuphefumula eziqukethwe wena ngokwakho (SCBA) kufanele zisetshenziswe esimweni sokuchayeka ezingeni eliphezulu, njengalapho kusabela ukuchitheka noma ezindaweni ezingenawo umoya ohlanzekile.

• Izilawuli Zobunjiniyela: Izindawo zokusebenza lapho kusetshenziswa khona i-sodium cyanide kufanele zibe nezinhlelo ezifanele zokungenisa umoya ukuze kuvinjelwe ukunqwabelana kwegesi ye-hydrogen cyanide. Indawo yokukhipha umoya kufanele ifakwe ezindaweni lapho i-sodium cyanide iphathwa khona noma icutshungulwa ukuze kuthathwe noma iyiphi igesi ekhishiwe. Yonke imishini esetshenziswa ekuphatheni i-sodium cyanide kufanele yakhelwe ukunciphisa ubungozi bokuvuza nokuchitheka.

• Ukuqeqeshwa kanye Nempendulo Ephuthumayo: Abasebenzi abaphatha i-sodium cyanide kufanele bathole ukuqeqeshwa okuphelele mayelana nezakhiwo zayo, izingozi, izinqubo zokuphatha ngokuphephile, kanye nokusabela okuphuthumayo. Izinhlelo zokubhekana nezimo eziphuthumayo kufanele zibe khona, futhi abasebenzi kufanele baqeqeshwe ngezindlela zosizo lokuqala mayelana nobuthi be-cyanide, okuhlanganisa nokuphathwa kwemithi yokwelapha uma ikhona. Esimeni sokuchitheka noma ukukhishwa, izinqubo ezifanele zokuthimba nokuhlanza kufanele zilandelwe ngokushesha ukuze kuvinjelwe ukusabalala kwezinto ezinobuthi.

Isiphetho

I-sodium cyanide, naphezu kokusebenziseka kwayo emisebenzini ehlukahlukene yezimboni, iyinto eyingozi kakhulu ngenxa yobuthi bayo obukhulu. Ukuqonda izakhiwo zayo, ukusetshenziswa, kanye nezingozi ezingaba khona kubalulekile ekuqinisekiseni ukuphepha kwabasebenzi kanye nemvelo. Ngokusebenzisa izinyathelo eziqinile zokuphepha nezokuphatha, izingozi ezihlobene ne-sodium cyanide zingancishiswa, okuvumela ukusetshenziswa kwayo okuqhubekayo ezimbonini lapho idlala indima ebalulekile. Kodwa-ke, ukuqapha okuqhubekayo nokubambelela ezimisweni zokuphepha kuyadingeka ukuze kuvinjwe izingozi futhi kuvikelwe impilo yabantu.