Sodium Cyanide (NaCN): Kupanga ndi Ntchito Zosiyanasiyana

Sodium cyanide (NaCN) ndi mankhwala omwe ali ndi ntchito zosiyanasiyana m'mafakitale osiyanasiyana. Kufunika kwake kuli pamapangidwe ake apadera amthupi omwe amamupangitsa kuti azigwira ntchito zofunika kwambiri pamachitidwe monga organic synthesis, kuyenga zitsulo, ndi zina zambiri.

I. Ntchito za NaCN

A. Kaphatikizidwe ka organic

NaCN imagwiritsidwa ntchito kwambiri popanga zinthu zachilengedwe. Imagwira ntchito ngati chothandizira chachikulu pakupanga Carbon-maunyolo a kaboni, zomwe zimathandiza akatswiri a zamankhwala kupanga mamolekyu ovuta achilengedwe. Izi ndizofunikira popanga mankhwala, mankhwala abwino, ndi mankhwala ena ambiri achilengedwe. Mwachitsanzo, popanga mankhwala ena, NaCN imagwiritsidwa ntchito kuyambitsa magulu enaake ogwira ntchito, omwe ndi ofunikira kuti mankhwalawa agwire bwino ntchito.

B. Kuyenga Golide ndi Siliva

M'makampani amigodi, NaCN imagwira ntchito yofunika kwambiri pakuchotsa ndi kuyenga golide ndi siliva. Njirayi, yomwe imadziwika kuti cyanidation, imaphatikizapo kusungunula golide ndi siliva kuchokera ku miyala yawo mu njira yothetsera Sodium Cyanide. Njirayi ndi yothandiza kwambiri ndipo ikugwiritsidwa ntchito kwambiri m'migodi yaikulu padziko lonse lapansi. Zimalola kulekanitsa zitsulo zamtengo wapatali kuchokera ku mchere wina womwe ulipo mu ore, zomwe zimapangitsa kuti pakhale golide ndi siliva woyeretsedwa kwambiri.

C. Electroplating

NaCN ndi gawo lofunikira kwambiri pakupanga ma electroplating. Zimathandiza kuyika chitsulo chochepa kwambiri pa gawo lapansi. Mu electroplating, ma cyanide ions mu NaCN complex ndi ayoni achitsulo, kuwongolera mawonekedwe awo a yunifolomu pamwamba pa chinthu chomwe chikukutidwa. Izi zimapangitsa kuti zitsulo zikhale zosalala komanso zotsatizana, zomwe zimagwiritsidwa ntchito pazifukwa zokongoletsa, kuteteza dzimbiri, ndikuwongolera kayendedwe ka magetsi ka chinthu chophwanyika.

D. Ntchito Zina

Kuphatikiza pazomwe tafotokozazi, NaCN imagwiritsidwa ntchito pochiza kutentha kwachitsulo kuti isinthe mawonekedwe azitsulo. Amagwiritsidwanso ntchito popanga utoto, mankhwala ophera tizilombo, monga choletsa chosankha muzitsulo zopanda chitsulo zoyandama, popanga utomoni wa methyl methacrylate, komanso popanga potaziyamu ferrocyanide (yellow prussiate wa potashi).

II. Zida Zofunika Kwambiri Zopangira NaCN

A. Hydrocyanic Acid

Chimodzi mwazinthu zopangira zopangira NaCN ndi hydrocyanic acid (HCN). Pakadali pano, gawo lalikulu la hydrocyanic acid limapezeka ngati chinthu chopangidwa kuchokera kukupanga acrylonitrile (CH₂=CHCN). Mu njira yopangira acrylonitrile, kuchuluka kwa mankhwala a hydrocyanic acid ndi pafupifupi 10% ya acrylonitrile kupanga voliyumu. Izi zimasinthidwanso kuti zipange NaCN.

B. Njira Zina

M'madera omwe zinthu zili bwino, hydrocyanic acid imathanso kupangidwa kuchokera ku gasi ndi ammonia. Njira ina iyi imapereka gwero lina la hydrocyanic acid pakupanga kwa NaCN. Kaphatikizidwe ka hydrocyanic acid kuchokera kuzinthu zopangira izi kumaphatikizapo zovuta zamagulu zomwe zimafunikira momwe zinthu zimachitikira komanso zopangira.

Pomaliza, sodium cyanide ndi mankhwala osinthika omwe amagwiritsidwa ntchito kwambiri m'mafakitale angapo. Kupanga kwa NaCN kumagwirizana kwambiri ndi kupezeka kwa zinthu zofunika kwambiri, makamaka hydrocyanic acid, yomwe imatha kupangidwa kuchokera ku acrylonitrile kapena kupangidwa kuchokera ku gasi ndi ammonia. Pamene mafakitale akupitirizabe kusintha, kufunikira kwa NaCN pakuthandizira njira zosiyanasiyana za mankhwala kungathe kupitilirabe.