Sodium Cyanide: Katundu, Zowopsa, ndi Njira Zachitetezo

Introduction

Sodium cyanide (NaCN) ndi gulu lachilengedwe lomwe limagwira ntchito zazikulu m'mafakitale osiyanasiyana. Komabe, chikhalidwe chake chapoizoni kwambiri chimafuna kuchitidwa mwamphamvu komanso chitetezo. Nkhaniyi ikufotokoza za katundu, ntchito, ndi zoopsa zomwe zingagwirizane nazo Sodium cyanide.

Zida zamakono ndi zakuthupi

Chemical Formula ndi Kapangidwe

Sodium cyanide ili ndi formula ya mankhwala 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. Carbon Atomu mu gulu la cyanide imapanga mgwirizano watatu ndi atomu ya nayitrogeni, zomwe zimapatsa CN⁻ ion mphamvu yake yochitira zinthu.

Zizindikiro za thupi

• Maonekedwe: Sodium cyanide nthawi zambiri imawoneka ngati yoyera, yolimba ya crystalline kapena ufa.

• Zovuta: Pouma, nthawi zambiri imakhala yopanda fungo. Komabe, ikakumana ndi chinyezi mumlengalenga kapena m'madzi, imatha kutulutsa mpweya wa hydrogen cyanide (HCN), womwe umakhala ndi fungo losamveka, la amondi - ngati fungo. Ndikofunika kuzindikira kuti si aliyense amene angazindikire kununkhira kwa hydrogen cyanide, chifukwa mphamvu yochitira zimenezi imatsimikiziridwa ndi majini.

• Kusungunuka ndi Kuwira: Ili ndi malo osungunuka kwambiri a 563.7 °C ndi malo otentha a 1496 °C.

• Kutupa: Sodium cyanide imasungunuka kwambiri m'madzi. M'malo mwake, 38.9 magalamu a NaCN amatha kusungunuka mu mamililita 100 amadzi pa 20 ° C. Amasungunukanso mu zosungunulira za polar monga ammonia, ethanol, ndi methanol.

Chemical Reactivity

• Kutulutsa madzi: Sodium cyanide ndi mchere wa asidi ofooka, hydrogen cyanide (HCN). Ikakumana ndi madzi, imalowa mu hydrolysis, kupanga mpweya wa hydrogen cyanide. Chemical equation pakuchita izi ndi: NaCN + H₂O ⇌ NaOH + HCN. Izi zitha kuchitika ngakhale ndi chinyezi chamlengalenga, kupanga cholimba Sodium Cyanide gwero lotha kutulutsa mpweya wapoizoni.

• Zochita za Acid: Imachita mwachangu ndi zidulo. Mwachitsanzo, pamene sodium cyanide imakhudzidwa ndi sulfuric acid (H₂SO₄), zotsatirazi zimachitika: 2NaCN + H₂SO₄ → Na₂SO₄ + 2HCN. Kutulutsa mpweya wa hydrogen cyanide muzochitika zotere ndizowopsa chifukwa cha kawopsedwe wake wambiri.

• Mapangidwe a Metal Complex: Sodium cyanide ili ndi mgwirizano wamphamvu wazitsulo. Pamaso pa mpweya ndi madzi, imatha kusungunula zitsulo zamtengo wapatali monga golide ndi siliva. Kwa golide, zomwe zimachitika ndi izi: 4Au + 8NaCN + O₂ + 2H₂O → 4Na[Au(CN)₂] + 4NaOH. Katunduyu amagwiritsiridwa ntchito kwambiri m'mafakitale amigodi pofuna kuchotsa 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 mwazinthu zofunikira kwambiri za sodium cyanide ndikuchotsa golide ndi zitsulo zina zamtengo wapatali kuchokera ku ore. Njirayi, yotchedwa Cyanidation, kumaphatikizapo kugwiritsa ntchito mankhwala a sodium cyanide kusungunula golidi ndi siliva kuchokera ku miyala yawo. Zitsulo zosungunukazo zimabwezeretsedwanso kudzera m'njira zingapo zamankhwala. Njira imeneyi imagwiritsidwa ntchito kwambiri chifukwa cha mphamvu zake 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

• Kusakaniza: Kumwa sodium cyanide kungayambitse zizindikiro zofulumira. Zizindikiro zoyamba zingaphatikizepo kutentha m'kamwa ndi mmero, kenako ndi nseru, kusanza, kupweteka m'mimba, ndi kutsekula m'mimba. Pamene poizoniyo akuwonjezereka, pangakhale vuto la kupuma, kugunda kwa mtima mofulumira kapena kosalongosoka, chizungulire, mutu, ndi chisokonezo. Milandu yoopsa imatha kukomoka, kukomoka, ndi kufa mkati mwa mphindi kapena maola angapo.

• Kutsegula: Kukoka mpweya wa hydrogen cyanide, womwe umatha kutulutsidwa ku sodium cyanide pamaso pa chinyezi kapena zidulo, ndikowopsanso kwambiri. Zizindikiro za kupuma movutikira zingaphatikizepo kupsa mtima, kutsokomola, kupuma movutikira, kukhala pachifuwa, komanso kumva kukomoka. Kukoka mpweya wambiri kumatha kupangitsa kuti kupuma kumangidwe komanso kufa.

• Kukhudzana ndi Khungu ndi Diso: Kukhudzana mwachindunji ndi sodium cyanide kungayambitse kuyabwa ndi kuyaka pakhungu ndi maso. Kulumikizana kwa khungu kwa nthawi yayitali kapena kwakukulu kungapangitsenso kuti cyanide ilowe m'magazi, zomwe zimapangitsa kuti pakhale poizoni.

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

• Zida Zodzitetezera (PPE): Ogwira ntchito ya sodium cyanide ayenera kuvala PPE yoyenera, kuphatikiza magolovesi osamva mankhwala, magalasi oteteza maso kapena zishango zakumaso, zovala zodzitchinjiriza, komanso zoteteza kupuma. Zida zopumira zokha zokha (SCBA) ziyenera kugwiritsidwa ntchito ngati zitha kukhala zowonekera kwambiri, monga nthawi yotaya madzi kapena m'malo opanda mpweya wabwino.

• Ulamuliro Waumisiri: Malo ogwirira ntchito omwe sodium cyanide amagwiritsidwa ntchito ayenera kukhala ndi mpweya wabwino kuti asatengere mpweya wa hydrogen cyanide. Mpweya wotuluka m'deralo uyenera kuyikidwa pamalo pomwe sodium cyanide imagwiridwa kapena kukonzedwa kuti igwire mpweya uliwonse wotuluka. Zida zonse zomwe zimagwiritsidwa ntchito posamalira sodium cyanide ziyenera kupangidwa kuti zichepetse kutayikira komanso kutayikira.

• Maphunziro ndi Kuyankha Mwadzidzidzi: Ogwira ntchito omwe amagwiritsa ntchito sodium cyanide ayenera kuphunzitsidwa mozama za katundu wake, zoopsa, njira zoyendetsera bwino, ndi kuyankha mwadzidzidzi. Zolinga zoyankhira mwadzidzidzi ziyenera kukhalapo, ndipo ogwira ntchito ayenera kuphunzitsidwa njira zothandizira poyizoni wa cyanide, kuphatikizapo kupereka mankhwala oletsa antidote ngati alipo. Pakatayikira kapena kutulutsa, njira zoyenera zosungira ndi kuyeretsa ziyenera kutsatiridwa nthawi yomweyo kuti poyizoniyo isafalikire.

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.