
Sodium Cyanide (NaCN) musanganiswa unozivikanwa nekunyanya kuchetura uye unowanzoshandiswa mumaindasitiri akadai semigodhi, electroplating, uye makemikari synthesis. Tichifunga nezvehunhu hwayo hune njodzi, kunzwisisa maitiro ayo, kunyanya mukana wekutenderera kwakananga mumhepo, kunonyanya kukosha kwekuchengetedza uye kuchengetedza kwezvakatipoteredza.
Chemical Properties yeSodium Cyanide
Sodium cyanide ichena, ikiristiri yakasimba ine nzvimbo yakakwirira yekunyungudika inosvika 563.7 °C uye inzvimbo yekuvira inosvika 1496 °C. Pasi pemamiriro ekunze akajairika, anowanzo onekwa netembiricha kubva pa20 - 25 °C uye yakajairwa mhepo yemhepo, inovapo munzvimbo yakasimba. Kubva pamaonero ekutanga thermodynamic, zvinhu zvinowanzoda simba rekuisa kuti rishanduke kubva pakasimba kana kuti mvura kuenda kunzvimbo ine gasi (volatilization). Sezvo ambient tembiricha iri kure pazasi kuvira kwenzvimbo ye sodium cyanide, haishanduki nyore nyore kuita gasi pakarepo mumamiriro ezvinhu akajairika.
Zvinhu Zvinokanganisa Volatilization
Zvisinei, kugadzikana kwe Sodium Cyanide inogona kukanganiswa nezvinhu zvakasiyana-siyana. Chimwe chinhu chakakosha kuita kwayo nemvura nemaasidhi. Rini Sodium cyanide inosangana nemvura, iyo hydrolyzes kuti iumbe rehydrogen cyanide (HCN), gasi rinoputika uye rine muchetura zvakanyanya. Iyo kemikari reaction inogona kumiririrwa seizvi:

Iko kuenzana kwekuita uku kunokonzerwa ne pH yemhinduro. Munzvimbo dzine acidic, maitiro anowanzo kuenderera mberi, achikurudzira kuumbwa kweHCN. Semuenzaniso, kana sodium cyanide ikasangana nemvura ine acidic kana acidic maindasitiri emarara, chizvarwa chinokurumidza cheHCN gasi chinogona kuitika, icho chinobva chanyura mumhepo.
Chimwe chinhu kukwira kwetembiricha. Kunyangwe tembiricha yepakati haina kukwana kukonzeresa yakananga kuvhuvhuta kwesodium cyanide pachayo, mutsaona dzeindasitiri kana nzvimbo dzisina kufanira dzekuchengetedza uko tembiricha yemuno inogona kukwira zvakanyanya, iyo kinetic simba re sodium cyanide mamorekuru rinowedzera. Izvi zvinogona kutungamira kune yakawedzera mwero wekuita kwehydrolysis uye, nekudaro, mukana wepamusoro wekuumbwa kweHCN uye kuputika.
Kuchengetedzwa uye Zvakatipoteredza Zvinoreva
Iko kugona kwekuumbwa uye kuvhuvhuta kweHCN kubva ku sodium cyanide ine kuchengetedzwa kwakakosha uye zvakatipoteredza. Munzvimbo yebasa, kana sodium cyanide isina kuchengetwa zvakanaka kana kubatwa zvakanaka, kuratidzirwa netsaona kune unyoro kana maasidhi kunogona kukonzera kuburitswa kweHCN gasi, zvichiunza njodzi yakanyanya kuhutano hwevashandi. Zviratidzo zvekuratidzwa kweHCN zvinogona kubva kubva kudiki kufema kusagadzikana uye dzungu kusvika kuhupenyu - mamiriro ezvinhu anotyisa akadai sekusungwa kwemoyo uye coma.
Munharaunda, kuburitswa kweHCN kubva ku sodium cyanide kunogona kusvibisa mweya, ivhu, uye miviri yemvura. Inogona kukuvadza zvipenyu zvakasiyana-siyana, kukanganisa ecosystem, uye kuungana mucheni yekudya, zvichiwedzera kukuvadza kwezvakatipoteredza.
Kudzivirira uye Kuderedza
Kuti udzivise kuvhurika - njodzi dzine chekuita nesodium cyanide, mapuroteni akasimba ekuchengetedza anofanirwa kuteedzerwa. Sodium cyanide inofanira kuchengetwa munzvimbo yakaoma, inotonhorera, uye inofefetera zvakanaka, kure nenzvimbo dzemwando nemaasidhi. Mukushandiswa kwemaindasitiri, maitiro ekubata akakodzera, anosanganisira kushandiswa kwemidziyo yekudzivirira yemunhu (PPE) uye kuiswa kwemasisitimu ekuona gasi, kwakakosha. Pakaitika kurashikirwa kana kuburitswa netsaona, matanho ekukurumidza ekuchengetedza anofanirwa kutorwa, uye kusarerekera kune yakakodzera alkaline mhinduro kungave kuri madikanwa kudzivirira kuumbwa kweHCN.
Mukupedzisa, nepo sodium cyanide isingapindire zvakananga mumhepo pasi pemamiriro ekunze akajairwa, inogona kutungamira mukuburitswa kwegasi rinoputika uye rine chepfu HCN kuburikidza nekuita kwehydrolysis mumamiriro ezvinhu akadai sekusangana nemvura kana acid, kana tembiricha yakakwira. Kunzwisisa maitiro aya kwakakosha pakubata kwakachengeteka, kuchengetedza, uye kushandiswa kwesodium cyanide, pamwe nekuchengetedza hutano hwevanhu uye nharaunda.
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