Sodium cyanide (NaCN) yog ib yam tshuaj lom neeg uas muaj kev siv rau hauv kev lag luam tab sis kuj muaj tshuaj lom heev. Thaum xav txog nws lub cev nqaij daim tawv ntawm qhov kub thiab txias (feem ntau txhais tias yog kwv yees li 20 - 25 ° C), Sodium cyanide muaj nyob ua khoom khov.
Physical Properties Indicating Solid State
Lub Sijhawm Yaj thiab Lub Sijhawm Kub : Sodium cyanide muaj lub sijhawm yaj siab txog li 563.7°C txog 564°C. Nws lub sijhawm kub dua, nyob ib puag ncig 1496°C. Vim tias qhov kub hauv chav tsev qis dua nws lub sijhawm yaj, nws tseem nyob hauv daim ntawv khov kho. Hauv lub xeev khov kho, cov sodium (Na⁺) thiab cyanide (CN⁻) ions raug tuav ua ke hauv cov qauv lattice los ntawm cov ionic bonds muaj zog.
Tsos : Feem ntau, Sodium Cyanide zoo li cov khoom dawb crystalline, uas kuj tuaj yeem ua tiav rau hauv cov hmoov lossis cov khoom ua pob. Qhov tsos pom no yog tus yam ntxwv ntawm cov khoom khov ntawm chav tsev kub.
Qhov tshwm sim ntawm Liquid Sodium Cyanide
Txawm hais tias sodium cyanide yog cov khoom khov kho thaum sov li chav tsev, nws tuaj yeem muaj nyob rau hauv daim ntawv kua hauv qab qee yam mob. Piv txwv li, hauv kev lag luam, thaum sodium cyanide yaj rau hauv cov kuab tshuaj kom tsim cov kua, nws tuaj yeem nyob rau hauv lub xeev zoo li kua rau ntau yam txheej txheem tshuaj. Tsis tas li ntawd, yog tias qhov kub siab dua nws qhov melting point, nws yuav hloov mus ua kua. Tab sis cov no tsis yog cov mob ntawm chav tsev kub.
Hauv kev xaus, nyob rau hauv ib qho chaw txias txias, sodium cyanide yog cov khoom. Vim nws cov toxicity heev, ib qho kev tuav ntawm sodium cyanide, txawm nyob rau hauv cov khoom siv los yog kua, yuav tsum tau ua nrog kev saib xyuas zoo tshaj plaws, ua raws li cov txheej txheem kev nyab xeeb nruj kom tsis txhob muaj kev puas tsuaj rau tib neeg kev noj qab haus huv thiab ib puag ncig.
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