
sodium cyanide (NaCN) yog ib qho tshuaj lom neeg tsis muaj tshuaj lom neeg muaj npe nrov rau nws qhov ua rau tuag taus thiab sib txawv. Tshuaj lom neeg. Kab lus no delves rau hauv lub cev thiab tshuaj yam ntxwv ntawm Sodium cyanide thiab tshawb nrhiav nws ntau yam kev siv, thaum tseem qhia txog qhov tseem ceeb ntawm kev nyab xeeb thiab kev tswj hwm kev tswj hwm.
Lub cev lub cev thiab tshuaj
Sodium cyanide yog ib yam khoom dawb, crystalline uas zoo li ntsev hauv rooj. Nws yaj tau zoo heev hauv dej, yooj yim tsim cov tshuaj ntshiab, tsis muaj xim. Qhov kev yaj no ua rau nws kis tau sai hauv cov dej, uas ua rau nws muaj peev xwm lom ntau dua. Nrog rau qhov chaw yaj ntawm 563.7 ° C thiab qhov chaw npau ntawm 1496 ° C, Sodium Cyanide muaj kev ruaj khov thermal siab nyob rau hauv cov xwm txheej ib txwm muaj.
Hauv kev tshuaj lom neeg, sodium cyanide muaj zog heev. Nws sib cais hauv dej kom tso tawm cov cyanide ions (CN-), uas yog lub luag haujlwm rau nws cov tshuaj lom. Thaum kov cov kua qaub, sodium cyanide reacts heev los tsim hydrogen cyanide (HCN), uas yog cov pa roj volatile heev thiab lom heev. Qhov kev tshuaj tiv thaiv no ua rau muaj kev pheej hmoo loj, vim tias txawm tias cov kua qaub me me tuaj yeem ua rau muaj kev tso tawm ntawm hydrogen cyanide uas tuag taus. Tsis tas li ntawd, sodium cyanide tuaj yeem ua rau muaj ntau yam hlau los tsim cov hlau cyanide ruaj khov, ib yam khoom uas siv rau hauv ntau yam txheej txheem kev lag luam.
muaj daim ntaub ntawv
Txawm hais tias nws cov tshuaj lom heev, sodium cyanide plays lub luag haujlwm tseem ceeb hauv ntau yam kev lag luam. Ib qho ntawm cov kev siv tseem ceeb tshaj plaws ntawm sodium cyanide yog nyob rau hauv kev lag luam mining, tshwj xeeb hauv kev rho nyiaj kub thiab nyiaj. Cov txheej txheem, hu ua cyanidation, cuam tshuam cov hlau muaj nuj nqis los ntawm lawv cov ores siv cov tshuaj dilute ntawm sodium cyanide. Cov cyanide ions tsim cov txheej txheem soluble nrog kub thiab nyiaj, ua rau lawv sib cais los ntawm ore matrix. Txoj kev no yog qhov ua tau zoo thiab siv dav vim nws muaj peev xwm rho tawm cov hlau los ntawm qib qis ore, ua rau nws muaj txiaj ntsig zoo rau kev lag luam mining loj.
Sodium cyanide kuj pom daim ntawv thov hauv kev lag luam electroplating. Nws yog siv los ua tus neeg sawv cev ua kom ruaj khov rau cov hlau ions hauv electroplating da dej. Los ntawm kev tsim cov complexes ruaj khov nrog cov hlau ions, sodium cyanide ua kom lub cev tsis sib xws thiab cov hlau tso rau ntawm lub substrate, uas ua rau cov khoom zoo electroplated. Daim ntawv thov no yog qhov tseem ceeb tshwj xeeb hauv kev tsim cov hniav nyiaj hniav kub, cov khoom siv tsheb, thiab cov khoom siv hluav taws xob, qhov twg yuav tsum muaj cov hlau du thiab ruaj khov.
Hauv kev lag luam tshuaj, sodium cyanide ua haujlwm tseem ceeb raw khoom rau kev sib txuas ntawm ntau yam organic thiab inorganic tebchaw. Nws yog siv rau hauv kev tsim tshuaj, tshuaj tua kab, dyes, thiab lwm yam tshuaj. Piv txwv li, sodium cyanide yog siv nyob rau hauv lub synthesis ntawm cyanohydrins, uas yog ib qho tseem ceeb intermediates nyob rau hauv zus tau tej cov tshuaj thiab agrochemicals. Txawm li cas los xij, vim nws muaj toxicity, cov txheej txheem kev nyab xeeb nruj thiab cov txheej txheem tuav yuav tsum tau ua raws li thaum siv sodium cyanide hauv tshuaj synthesis.
Kev nyab xeeb thiab kev tswj xyuas
Muab nws cov tshuaj lom neeg heev, sodium cyanide raug tswj hwm nruj hauv ntau lub tebchaws. Kev tuav, khaws cia, thiab kev thauj mus los ntawm sodium cyanide yog nruj tswj hwm kom tsis txhob muaj kev sib tsoo thiab kev sib kis ntawm ib puag ncig. Cov neeg ua haujlwm tuav cov tshuaj sodium cyanide yuav tsum tau txais kev cob qhia tshwj xeeb thiab hnav cov khoom tiv thaiv tus kheej tsim nyog (PPE), suav nrog hnab looj tes, tsom iav, thiab lub tshuab ua pa. Thaum muaj kev nchuav los yog tso tawm, kev ntsuas tam sim thiab tsim nyog yuav tsum tau ua kom txo qis kev pheej hmoo ntawm kev raug mob thiab ib puag ncig kev puas tsuaj.
Hauv kev xaus, sodium cyanide yog ib qho tshuaj lom heev tab sis muaj kev lag luam tseem ceeb nrog lub cev thiab tshuaj lom neeg tshwj xeeb. Nws cov ntawv thov hauv mining, electroplating, thiab tshuaj synthesis qhia nws qhov tseem ceeb hauv ntau qhov kev lag luam. Txawm li cas los xij, qhov muaj kuab lom heev ntawm sodium cyanide yuav tsum muaj kev nyab xeeb nruj thiab kev tswj hwm kev tswj hwm kom muaj kev tiv thaiv tib neeg kev noj qab haus huv thiab ib puag ncig. Raws li kev lag luam txuas ntxiv tso siab rau sodium cyanide, kev tshawb fawb thiab kev txhim kho txuas ntxiv yog tsom rau kev nrhiav kev nyab xeeb dua thiab txhim kho cov txheej txheem kev nyab xeeb kom txo tau cov kev pheej hmoo cuam tshuam nrog kev siv.
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