Ukukhiqizwa kwe-Sodium Hydrosulfide ngokusebenzisa i-NaOH Absorption
Indlela ejayelekileko yokumuncwa kwe-NaOH
Lokha i-NaHS sodium hydrosulfide nayifinyelela 70%, yakha ama-dihydrate flakes.
Ebujameni obuphasi, ikhona njenge-trihydrate ewuketshezi.
Ikambiso:
Iflaski eyi-1 L eneentamo ezintathu enephasi eliyindilinga ifakwe isivundisi kanye ne-reflux condenser (ehlanganiswe netjhubhu yokomisa i-CaCl₂).
Iflaski ihlanjululwa nge-nitrogen eyomileko, bese itjhajiswa nge- 200 mL (3.4 mol) i-ethanol engenamanzi.
12 g (0.522 mol) yensimbi ehlanzekileko ye-sodium ifakwa ngeengcezu ezincani ngaphasi kokuvuselela nokubuyiselwa emuva bekube kulapho incibilika ngokupheleleko.
Itjhubhu yokungenisa igesi ifakwa ngaphakathi kwe-liquid, bese i-H2S eyomileko (eyomiswe phezu kwe-P2O5) ibubble ngamabhamuza ama-5-10/sec isikhathi esingaba ma-awa ama-2 ngaphasi kokuvuselela.
Ngemva kokupholisa, i-750 mL ye-ether enganamanzi ifakwa ukobana i-NaHS sodium hydrosulfide ibe lula ngokupheleleko.
Ukusebenza:
Umxube uyahlungwa msinyana (i-frit ekulu) ukukhandela ukumuncwa komswakama.
Into eqinileko ihlanzwa ka-3× nge-ether enganamanzi, bese yomiswa nge-vacuum desiccator (CaCl₂) ama-awa ambalwa.
Isivuno: 29.4 g ye-≥98% ye-NaHS emsulwa.