Sodium Cyanide: Katundu, Zowopsa, ndi Njira Zachitetezo

Introduction

Sodium cyanide (NaCN) ndi chinthu chosapangidwa chomwe chimagwira ntchito yofunika kwambiri m'mafakitale osiyanasiyana. Komabe, chifukwa cha poizoni wake wambiri chimafuna njira zosamalira mosamala komanso chitetezo. Nkhaniyi ikufotokoza za makhalidwe, ntchito, ndi zoopsa zomwe zingachitike chifukwa cha Sodium cyanide.

Zida zamakono ndi zakuthupi

Chemical Formula ndi Kapangidwe

Sodium cyanide ili ndi njira ya mankhwala ya NaCN. Ndi mankhwala a ionic opangidwa ndi sodium cation (Na⁺) ndi cyanide anion (CN⁻). Mu kapangidwe ka kristalo, ma ayoni a sodium ndi cyanide amakonzedwa mu lattice yofanana ndi ya sodium chloride. Atomu ya Carbon mu gulu la cyanide imapanga mgwirizano watatu ndi atomu ya nayitrogeni, zomwe zimapangitsa CN⁻ ion kukhala ndi reactivity yake yapadera.

Zizindikiro za thupi

• Mawonekedwe : Sodium cyanide nthawi zambiri imawoneka ngati yoyera, yolimba kapena ufa.

• Fungo : Mu mawonekedwe ake ouma, nthawi zambiri silikhala ndi fungo. Komabe, likakumana ndi chinyezi mumlengalenga kapena m'madzi, limatha kupanga mpweya wa hydrogen cyanide (HCN), womwe uli ndi fungo lochepa, lofanana ndi la amondi. Ndikofunikira kudziwa kuti si aliyense amene angazindikire fungo la hydrogen cyanide, chifukwa kuthekera kochita izi kumadalira majini.

• Malo Osungunula ndi Owira : Ili ndi malo osungunuka okwera kwambiri a 563.7 °C ndi malo owira a 1496 °C.

• Kusungunuka : Sodium cyanide imasungunuka kwambiri m'madzi. Ndipotu, magalamu 38.9 a NaCN amatha kusungunuka mu ma milliliters 100 a madzi pa 20 °C. Imasungunukanso mu zinthu zina zosungunulira monga ammonia, ethanol, ndi methanol.

Chemical Reactivity

• Hydrolysis : Sodium cyanide ndi mchere wa asidi wofooka, hydrogen cyanide (HCN). Ikakumana ndi madzi, imadutsa mu hydrolysis, ndikupanga mpweya wa hydrogen cyanide. Equation ya mankhwala a izi ndi: NaCN + H₂O ⇌ NaOH + HCN. Izi zitha kuchitika ngakhale ndi chinyezi cha mumlengalenga, zomwe zimapangitsa Sodium Cyanide yolimba kukhala gwero la kutulutsa mpweya wapoizoni.

• Mayankho a Asidi : Amayankho mosavuta ndi ma asidi. Mwachitsanzo, pamene sodium cyanide ikuyankho ndi sulfuric acid (H₂SO₄), zotsatirazi zimachitika: 2NaCN + H₂SO₄ → Na₂SO₄ + 2HCN. Kutulutsidwa kwa mpweya wa hydrogen cyanide m'mayankho otere ndi koopsa kwambiri chifukwa cha poizoni wake wambiri.

• Kupanga Zinthu Zovuta za Chitsulo : Sodium cyanide imagwirizana kwambiri ndi zitsulo. Pakakhala mpweya ndi madzi, imatha kusungunula zitsulo zamtengo wapatali monga golide ndi siliva. Pa golide, izi zimachitika motere: 4Au + 8NaCN + O₂ + 2H₂O → 4Na[Au(CN)₂] + 4NaOH. Katunduyu amagwiritsidwa ntchito kwambiri mumakampani opanga migodi kuti apeze golide.

Kukonzekera

Mu mafakitale, sodium cyanide imapangidwa makamaka ndi momwe hydrogen cyanide (HCN) imachitira ndi sodium hydroxide (NaOH). Chemical equation pakuchita izi ndi: HCN + NaOH → NaCN + H₂O. Hydrogen cyanide imatha kupangidwa kudzera munjira zosiyanasiyana, monga njira ya Andrussow, yomwe imakhudza momwe methane (CH₄), ammonia (NH₃), ndi okosijeni (O₂) pa platinamu - chothandizira cha rhodium pa kutentha kwambiri.

ntchito

Makampani Amigodi

Chimodzi mwa ntchito zofunika kwambiri za sodium cyanide ndi kuchotsa golide ndi zitsulo zina zamtengo wapatali kuchokera ku miyala yamtengo wapatali. Njirayi, yomwe imadziwika kuti Cyanidation , imaphatikizapo kugwiritsa ntchito njira za sodium cyanide kuti zisungunuke golide ndi siliva kuchokera ku miyala yawo yamtengo wapatali. Zitsulo zosungunukazo zimapezedwanso kudzera mu njira zingapo zamankhwala. Njirayi imagwiritsidwa ntchito kwambiri chifukwa cha kugwira ntchito kwake bwino komanso mtengo wake wotsika pochotsa zitsulo zamtengo wapatali kuchokera ku miyala yamtengo wapatali.

Chemical Manufacturing

Sodium cyanide imagwira ntchito ngati gawo lapakati popanga mankhwala osiyanasiyana. Amagwiritsidwa ntchito popanga ma nitriles, omwe ndi ofunikira kwambiri m'makampani opanga mankhwala, agrochemical, ndi ma polima. Mwachitsanzo, amagwiritsidwa ntchito popanga cyanuric chloride, yomwe imagwiritsidwanso ntchito popanga mankhwala ophera udzu, opha tizilombo, ndi utoto wa nsalu.

Pachikuz

M'makampani opanga ma electroplating, sodium cyanide imagwiritsidwa ntchito m'malo osambira, makamaka pakuyika zitsulo monga mkuwa, siliva, ndi golide. Zimathandiza kupanga yunifolomu ndi zitsulo zokutira zitsulo pa gawo lapansi. The ayoni cyanide mu plating kusamba zovuta ndi ayoni zitsulo, kutsogoza mafunsidwe a yosalala ndi zitsulo wosanjikiza.

Zowopsa Zaumoyo

Toxicity Mechanism

Sodium cyanide ndi poizoni kwambiri. Akalowetsedwa, kutulutsa mpweya, kapena kulowetsedwa pakhungu, amalekanitsa kutulutsa ma cyanide ions (CN⁻). Ma cyanide ions awa amamanga ku iron(III) mu cytochrome c oxidase, puloteni mu mitochondria ya maselo. Kumangiriza kumeneku kumalepheretsa kugwira ntchito kwa enzyme, kulepheretsa kusamutsidwa kwa ma electron mu unyolo woyendetsa ma elekitironi. Chotsatira chake, maselo sangathe kugwiritsa ntchito mpweya wabwino, zomwe zimapangitsa kuti ma cell asphyxiation asamawonongeke. Ngakhale mchere wochepa wa sodium cyanide ukhoza kupha.

Zowopsa Zowonekera

• Kumeza : Kumeza sodium cyanide kungayambitse zizindikiro zoyamba msanga. Zizindikiro zoyamba zingaphatikizepo kutentha mkamwa ndi pakhosi, kutsatiridwa ndi nseru, kusanza, kupweteka m'mimba, ndi kutsegula m'mimba. Pamene poizoniyo akupita patsogolo, pakhoza kukhala vuto kupuma, kugunda kwa mtima mofulumira kapena kosasinthasintha, chizungulire, mutu, ndi chisokonezo. Milandu yoopsa ingayambitse khunyu, kutaya chidziwitso, ndi imfa mkati mwa mphindi zochepa kapena maola.

• Kupuma : Kupuma mpweya wa hydrogen cyanide, womwe ungatuluke mu sodium cyanide ngati pali chinyezi kapena asidi, nawonso ndi woopsa kwambiri. Zizindikiro za kupuma zitha kukhala kuyabwa kwa njira yopumira, kukhosomola, kupuma movutikira, kulimba pachifuwa, komanso kumva ngati munthu walephera kupuma mokwanira. Kupuma movutikira kwambiri kumatha kubweretsa kulephera kupuma komanso imfa mwachangu.

• Kukhudzana ndi Khungu ndi Maso : Kukhudzana mwachindunji ndi sodium cyanide kungayambitse kuyabwa ndi kutentha pakhungu ndi maso. Kukhudzana ndi khungu kwa nthawi yayitali kapena kwakukulu kungathandizenso kuti cyanide ilowe m'magazi, zomwe zimapangitsa kuti thupi lonse liwonongeke.

Zotsatira za Kuwonekera Kwambiri

Kuwona kwanthawi yayitali kwa sodium cyanide yotsika sikofala kwambiri koma kumatha kukhala ndi zotsatira zoyipa pa thanzi. Zingayambitse zizindikiro monga kufooka, kutopa, kupweteka mutu, vuto la kukumbukira, ndi kuwonongeka kwa chithokomiro. Kuwonekera kwa nthawi yayitali kungathenso kuonjezera chiopsezo chotenga matenda a minyewa komanso kukhala ndi zotsatira zoyipa pamtima ndi kupuma.

Chitetezo ndi Kusamalira

yosungirako

Sodium cyanide iyenera kusungidwa pamalo ozizira, owuma, omwe ali ndi mpweya wabwino kutali ndi kumene kumatentha, kuyatsa, ndi chinyezi. Iyenera kusungidwa mosiyana ndi ma acid, oxidizing agents, ndi zinthu zina zosagwirizana. Zotengerazo ziyenera kutsekedwa mwamphamvu ndi kupangidwa ndi zinthu zomwe sizingawonongeke ndi sodium cyanide, monga high - density polyethylene kapena chitsulo. Malo osungiramo ayenera kulembedwa bwino ndi zizindikiro zochenjeza, ndipo mwayi wofikira uyenera kuperekedwa kwa anthu ovomerezeka okha.

thiransipoti

Ponyamula sodium cyanide, malamulo okhwima ayenera kutsatiridwa. Amatchulidwa ngati zinthu zowopsa, ndipo kayendedwe kake kamakhala pansi pa malamulo a kayendetsedwe ka mayiko ndi mayiko. Zotengera zomwe zimagwiritsidwa ntchito poyendetsa ziyenera kukwaniritsa zofunikira za kapangidwe kake ndi zomangamanga kuti zipewe kutayikira. Panthawi yoyendetsa, zinthuzo ziyenera kutetezedwa ku kuwonongeka kwa thupi, kutentha kwambiri, ndi kukhudzana ndi zinthu zina zosagwirizana. Mapulani oyankha mwadzidzidzi ndi zida zotayira ziyenera kupezeka panthawi yamayendedwe pakachitika ngozi.

Kusamalira Njira Zodzitetezera

• Zipangizo Zodzitetezera Payekha (PPE) : Ogwira ntchito omwe amagwiritsa ntchito sodium cyanide ayenera kuvala PPE yoyenera, kuphatikizapo magolovesi osagwiritsa ntchito mankhwala, magalasi oteteza nkhope kapena zishango, zovala zodzitetezera, ndi zodzitetezera kupuma. Zipangizo zopumira zokha (SCBA) ziyenera kugwiritsidwa ntchito ngati pangakhale vuto lalikulu, monga panthawi yothira madzi kapena m'malo opanda mpweya wabwino.

• Kuwongolera Uinjiniya : Malo ogwirira ntchito omwe sodium cyanide imagwiritsidwa ntchito ayenera kukhala ndi njira zoyenera zopumira mpweya kuti aletse kusonkhana kwa mpweya wa hydrogen cyanide. Mpweya wotuluka m'malo otayira mpweya uyenera kuyikidwa pamalo pomwe sodium cyanide imayendetsedwa kapena kukonzedwa kuti igwire mpweya uliwonse wotulutsidwa. Zipangizo zonse zomwe zimagwiritsidwa ntchito pogwira sodium cyanide ziyenera kupangidwa kuti zichepetse kutayikira ndi kutayikira kwa mpweya.

• Maphunziro ndi Kuyankha Mwadzidzidzi : Ogwira ntchito omwe amagwiritsa ntchito sodium cyanide ayenera kulandira maphunziro okwanira okhudza makhalidwe ake, zoopsa zake, njira zotetezera zogwirira ntchito, komanso momwe angayankhire mwadzidzidzi. Mapulani oyankha mwadzidzidzi ayenera kukhalapo, ndipo ogwira ntchito ayenera kuphunzitsidwa njira zothanirana ndi poizoni wa cyanide, kuphatikizapo kupereka mankhwala oletsa poizoni ngati alipo. Ngati zinthu zatayikira kapena zatulutsidwa, njira zoyenera zotetezera ndi kuyeretsa ziyenera kutsatiridwa nthawi yomweyo kuti zisafalikire poizoniyo.

Kutsiliza

Sodium cyanide, ngakhale imagwira ntchito m'mafakitale osiyanasiyana, ndi chinthu choopsa kwambiri chifukwa cha kawopsedwe kake. Kumvetsetsa katundu wake, ntchito, ndi zoopsa zomwe zingakhalepo ndizofunikira kwambiri powonetsetsa chitetezo cha ogwira ntchito ndi chilengedwe. Pogwiritsa ntchito njira zotetezera ndi kusamalira, kuopsa kwa sodium cyanide kumatha kuchepetsedwa, kulola kuti apitirize kugwiritsidwa ntchito m'mafakitale omwe amagwira ntchito yofunika kwambiri. Komabe, kukhala tcheru kosalekeza ndikutsata ndondomeko zachitetezo ndikofunikira kuti tipewe ngozi komanso kuteteza thanzi la anthu.