
Tanthauzo la Kusungunuka
Kusungunuka kumatanthauza kuchuluka kwa solute komwe kungathe kusungunuka mumtundu wina wa zosungunulira pa kutentha kwapadera ndi kukakamizidwa kuti apange njira yofanana. Nthawi zambiri amawonetsedwa mu magalamu a solute pa 100 milliliters (g/100 mL) ya zosungunulira kapena timadontho-timadontho pa lita imodzi (mol/L).
Kusungunuka kwa Sodium Cyanide m'madzi
Sodium cyanide (NaCN) imasungunuka kwambiri m'madzi. Kutentha kwapakati (pafupifupi 25 ° C), pafupifupi 48 magalamu a Sodium cyanide akhoza kupasuka mu 100 milliliters madzi. Pamene kutentha kumawonjezeka, zake Kutupa m'madzinso amatuluka. Mwachitsanzo, pa 34.7 ° C, kusungunuka kwa Sodium Cyanide m'madzi ndi pafupifupi 82 g/100 mL.
The mkulu solubility wa sodium cyanide m'madzi akhoza kukhala chifukwa cha zinthu zingapo. Sodium cyanide ndi mankhwala a ionic, omwe ali ndi sodium cations (Na⁺) ndi cyanide anions (CN⁻). Madzi ndi molekyu ya polar, yomwe imakhala ndi mphamvu yowonjezera pang'ono pa maatomu a haidrojeni ndi kuwononga pang'ono pa atomu ya okosijeni. Pamene sodium cyanide iwonjezeredwa m'madzi, mamolekyu amadzi a polar amalumikizana ndi ayoni mu sodium cyanide. Malekezero abwino a mamolekyu amadzi amakopeka ndi cyanide anions, ndipo mapeto oipa amakopeka ndi ma sodium cations. Izi amphamvu ion - dipole mogwirizana pakati pa ayoni wa sodium cyanide ndi madzi mamolekyu amalola sodium cyanide kupasuka mosavuta m'madzi.
Komanso, kusungunuka kwa sodium cyanide m'madzi ndi njira yowopsa. Malinga ndi mfundo ya Le Chatelier, pakusungunuka kwamphamvu kwambiri, kuwonjezereka kwa kutentha kumasuntha kufanana kwa momwe kusungunuka kumalowera komwe kuli solute yolimba (yosasungunuka). Komabe, pankhani ya sodium cyanide, kuwonjezeka kwa kutentha kumadzetsabe kusungunuka kwamadzi. Ichi ndi chifukwa kuwonjezeka kutentha kumawonjezera mphamvu kinetic wa mamolekyu madzi ndi ayoni, amene amalimbikitsa dissociation wa sodium cyanide mu ayoni ndi kubalalitsidwa awo m'madzi, kupitirira zotsatira za exothermic chikhalidwe cha kuvunda anachita pa solubility kumlingo wakuti.
Kusungunuka mu Zosungunulira Zina
Kuphatikiza pa madzi, sodium cyanide ili ndi mawonekedwe osiyanasiyana osungunuka muzosungunulira zina:
Ethanol: Sodium cyanide imasungunuka pang'ono mu ethanol. Kusungunuka kwa ethanol ndikotsika kwambiri poyerekeza ndi m'madzi. Izi ndichifukwa choti Mowa ndi chosungunulira chocheperako kuposa madzi. Mbali yopanda polar ya molekyulu ya ethanol (gulu la ethyl) imachepetsa polarity yonse ya zosungunulira. Zotsatira zake, kuyanjana kwa ion-dipole pakati pa ayoni a sodium cyanide ndi mamolekyu a ethanol sikuli kolimba ngati komwe kumakhala ndi mamolekyu amadzi, zomwe zimapangitsa kuti pakhale kusungunuka kwamadzi.
Other organic solvents: Sodium cyanide imakhala ndi kusungunuka kochepa kwambiri mu zosungunulira zopanda polar monga benzene, ether, ndi zina zotero. Popeza mamolekyu omwe si a polar alibe kupatukana kwakukulu, sangathe kukopa ayoni a sodium ndi cyanide kuti athyole zomangira za ayoni mu sodium cyanide ndikumwaza ayoni mu zosungunulira.
Kufunika kwa Solubility
Mapulogalamu a mafakitale
Mu Kukumba golide mafakitale, kusungunuka kwapamwamba kwa sodium cyanide m'madzi ndikofunikira. Golide amapanga chosungunuka chosungunuka ndi sodium cyanide mu njira yamadzi. Golide wosungunuka uyu - cyanide complex ndiye amatha kukonzedwanso kuti atenge golide weniweni. Kusungunuka kwa sodium cyanide m'madzi kumapangitsa kuti golide azituluka bwino kuchokera ku miyala yake.
Kusintha kwa mankhwala
Mu kaphatikizidwe ka mankhwala, kusungunuka kwa sodium cyanide mu zosungunulira zoyenera kumakhudza momwe zimachitikira komanso zokolola. Mwachitsanzo, m'malo ena a nucleophilic substitution reaction pomwe sodium cyanide imagwiritsidwa ntchito ngati nucleophile, kusungunuka kwake mumayendedwe apakati (kawirikawiri chosungunulira polar monga madzi kapena osakaniza mowa - madzi) kumatsimikizira momwe cyanide ion ingachitire ndi gawo lapansi. Ngati solubility ndi yotsika kwambiri, kuchuluka kwa cyanide ion mu yankho kumakhala kochepa, zomwe zingachedwetse zomwe zimachitika kapena kulepheretsa zomwe zimachitika kuti zichitike bwino.
Zolinga zachitetezo ndi chilengedwe
Kumvetsetsa kusungunuka kwa sodium cyanide ndikofunikiranso pachitetezo komanso kuteteza chilengedwe. Chifukwa cha kawopsedwe kake, ngati sodium cyanide itatayika mwangozi, kusungunuka kwake m'madzi kumatanthauza kuti imatha kusungunula ndikuyipitsa magwero amadzi. Soluble sodium cyanide imatha kutulutsa mpweya wapoizoni wa hydrogen cyanide pamaso pa zidulo kapena pansi pazikhalidwe zina. Kudziwa kusungunuka kwake kumathandizira kupanga njira zoyenera zosungira ndi kukonzanso ngati zitatayika.
Pomaliza, sodium cyanide ali mkulu solubility m'madzi, amene amasiyana ndi kutentha, ndi m'munsi kwambiri solubility mu zosungunulira ena monga Mowa ndi otsika kwambiri solubility si - polar solvents. Izi solubility katundu amatenga gawo lalikulu mu zake Mapulogalamu a mafakitale, machitidwe a mankhwala, ndi zokhudzana ndi chitetezo.
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