
Sodium cyanide (NaCN) yog ib qho tshuaj lom heev uas muaj kev siv hauv kev lag luam loj , tab sis nws kuj muaj kev pheej hmoo loj vim nws muaj tshuaj lom. Kev nkag siab txog nws cov khoom siv lub cev, xws li lub ntsiab lus yaj thiab lub ntsiab lus kub , yog qhov tseem ceeb rau kev tuav pov hwm thiab kev siv kom raug hauv ntau yam txheej txheem kev lag luam. Yog li, lub ntsiab lus yaj thiab lub ntsiab lus kub ntawm sodium cyanide yog dab tsi?
Lub ntsiab lus yaj ntawm Sodium Cyanide yog kwv yees li 563.7 ° C (1.046.7 ° F). Ntawm qhov kub no, cov khoom khov Sodium cyanide hloov mus rau hauv lub xeev kua. Lub ntsiab lus kub ntawm sodium cyanide yog nyob ib puag ncig 1.496 ° C (2.725 ° F). Thaum cua sov rau qhov kub no, cov kua sodium cyanide ua pa thiab hloov mus rau hauv lub xeev gaseous.
Cov ntsiab lus melting thiab boiling tshwj xeeb no yog tshwm sim los ntawm qhov muaj zog ionic bonds hauv sodium cyanide crystal lattice. Sodium cyanide yog ib qho ionic compound tsim los ntawm cov tshuaj tiv thaiv ntawm sodium ions (Na +) thiab cyanide ions (CN-). Lub electrostatic attraction ntawm qhov zoo nqi sodium ions thiab cov tsis zoo them cyanide ions tsim ib tug ruaj khov qauv uas yuav tsum tau ib tug tseem ceeb npaum li cas ntawm lub zog tawg, ua rau cov ntsiab lus kub melting thiab boiling.
Muab nws cov ntsiab lus siab melting thiab boiling, sodium cyanide tseem ruaj khov nyob rau hauv ib txwm ambient tej yam kev mob. Txawm li cas los xij, thaum raug kub hnyiab, tshwj xeeb tshaj yog nyob ze lossis siab dua nws qhov kub thiab txias, nws tuaj yeem tso cov pa roj hydrogen cyanide, uas yog qhov txaus ntshai heev rau tib neeg kev noj qab haus huv thiab ib puag ncig.
Hauv kev lag luam chaw, qhov twg sodium cyanide yog siv rau hauv cov txheej txheem xws li kub thiab nyiaj rho tawm, electroplating, thiab tshuaj synthesis, nruj kev ruaj ntseg raws cai yog nyob rau hauv qhov chaw los tiv thaiv kev huam yuaj thiab tso tawm cov tshuaj lom. Cov neeg ua haujlwm tuav cov tshuaj sodium cyanide yuav tsum tau kawm zoo thiab muaj cov cuab yeej tiv thaiv tus kheej tsim nyog.
Nyob rau hauv xaus, lub melting point ntawm sodium cyanide yog hais txog 563.7 ° C, thiab nws boiling point yog nyob ib ncig ntawm 1.496 ° C. Cov khoom ntawm lub cev no yog qhov tseem ceeb uas yuav tsum paub rau txhua tus neeg ua haujlwm nrog lossis kawm cov khoom siv no kom muaj kev nyab xeeb thiab siv tau zoo.
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