Vuhumelerisi bya Sodium Hydrosulfide hiku tirhisa NaOH Absorption
Ndlela ya ntolovelo yo amukela NaOH
Loko nhlayo ya NaHS sodium hydrosulfide yi fika 70% ., yi vumba swiphepherhele swa dihydrate.
Eka nhlayo yale hansi, yikona tani hi liquid trihydrate.
Humelerisa:
Flask ya 1 L ya tinhamu tinharhu ya xirhendzevutani yale hansi yi hlomisiwile hi stirrer na reflux condenser (leyi hlanganisiweke na CaCl2 drying tube).
Flask yi basisiwa hi nitrogen leyi omeke, kutani yi chajiwa hi 200 mL (3.4 mol) ya ethanol leyi nga riki na mati.
12 g (0.522 mol) ya nsimbi yo basa ya sodium yi cheriwa hi swiphemu leswintsongo ehansi ka ku hlanganisiwa na ku tlheriseriwa endzhaku kufikela yi khuluka hiku hetiseka.
Tube yo nghenisa gasi yi nghenisiwa eka mati, naswona H2S yo oma (leyi omisiweke ehenhla ka P2O5) yi bubbled eka 5–10 bubbles/sec kuringana 2 h ehansi ka ku hlanganisiwa.
Endzhaku ko hola, 750 mL ya anhydrous ether ya cheriwa kuva yi khulukisa NaHS sodium hydrosulfide hiku hetiseka.
Ntirho: .
Nkatsakanyo lowu wu hatla wu sefiwa (coarse frit) ku sivela ku amukeriwa ka ndzhongho.
Xiphemu lexi tiyeke xi hlantswiwa 3× hi anhydrous ether, kutani xi omisiwa eka vacuum desiccator (CaCl2) kuringana tiawara to hlaya.
Mbuyelo: 29.4 g ya ≥98% ya NaHS yo basa.