Ukuveliswa kweSodium Hydrosulfide ngeSodium Ethoxide kunye neH2S
Ukulungiswa ngeSodium Ethoxide kunye neDry Hydrogen Sulfide
Useto lweSixhobo:
Iflaski ye-150 mL enengalo esecaleni itshajwe 20 mL ye-distilled entsha I-Anhydrous Ethanol kwaye 2 g yeziqwenga zesinyithi zesodium ezicocekileyo (ezingenazo iileya ze-oxide).
Iflaski ifakwe i-reflux condenser kunye netyhubhu yokomisa, kwaye ingalo esecaleni ivalwe okwethutyana.
Emva kokuba i-sodium ethoxide iqala ukwakheka, enye i-sodium ethoxide I-40 mL ye-ethanol engenamanzi yongezwa kwiinxalenye ide inyibilike ngokupheleleyo.
Impendulo nge-Dry H₂S:
Ityhubhu yeglasi ifakwa ngengalo esecaleni kwisisombululo, kwaye igesi ye-H₂S eyomileyo ingena ngamaqamza (qinisekisa ukuba umoya awungeni kakuhle ukuze kuthintelwe ukungena komoya).
Isisombululo sigcwele i-H₂S, size sihluzwe ukuze kususwe naziphi na izinto ezirhabaxa.
I-filtrate idluliselwa kwiflaski eyomileyo ekhonkrithi, kwaye I-50 mL ye-absolute ether yongezwa, nto leyo ebangela ukuba i-NaHS emhlophe ivele ngokukhawuleza.
I-ether eyongezelelweyo (~110 mL iyonke) yongezwa kwiinxalenye kude kungabikho mvula iphinda ivele.
I-precipitate iyahluzwa ngokukhawuleza, ihlanjwe izihlandlo ezi-2-3 nge-absolute ether, ize yomiswe phantsi kwe-vacuum.
Le mveliso icocekile ngohlalutyo. Ukuze kubekho ubunyulu obuphezulu, kunokwenziwa i-recrystallization evela kwi-ethanol/ether.