Kugadzirwa kweSodium Hydrosulfide kuburikidza neNaOH Absorption
Nzira Yekunwa NaOH Yakajairika
Kana huwandu hweNaHS sodium hydrosulfide hwasvika 70%, inogadzira maflakes ane dihydrate.
Kana huwandu hwacho hwakaderera, hunowanikwa se trihydrate yemvura.
Maitiro:
Chirongo chepasi chine mutsipa wetatu chine 1 L chine chinhu chinosanganisa mvura ne reflux condenser (chakabatana nechubhu yekuomesa yeCaCl₂).
Chirongo chinocheneswa nenitrogen yakaoma, chobva chaiswa 200 mL (3.4 mol) ethanol isina mvura.
12 g (0.522 mol) yesimbi yakachena yesodium inowedzerwa muzvidimbu zvidiki kana ichikurunga uye yodzorerwa kusvika yanyungudika zvizere.
Chubhu inopinza gasi inoiswa mumvura, uye H₂S yakaoma (yakaomeswa pamusoro peP₂O₅) inotumbuka mumabubbles mashanu kusvika gumi pasekondi kwemaawa maviri ichikurunga.
Mushure mekutonhodza, 750 mL anhydrous ether inowedzerwa kuti NaHS sodium hydrosulfide iite zvizere.
Kugadzirira:
Musanganiswa uyu unosefetwa nekukurumidza (coarse frit) kudzivirira kunyungudika kwehunyoro.
Chinhu chakaoma chinogezwa 3× ne anhydrous ether, chobva chaomeswa mu vacuum desiccator (CaCl₂) kwemaawa akati wandei.
Goho: 29.4 g ye ≥98% NaHS yakachena.