Sodium Hydrosulfide ƒe wɔwɔ to NaOH ƒe xɔxlɔ̃ dzi
NaOH Xɔxɔ ƒe Mɔnu si wozãna ɖaa
Ne NaHS sodium hydrosulfide ƒe agbɔsɔsɔ ɖo 70% ., ewɔa dihydrate flakes.
Ne eƒe agbɔsɔsɔme le sue wu la, enɔa anyi abe tsi trihydrate ene.
Afᴐɖeɖe:
Wotsɔa ʋuʋudedi kple reflux condenser (si wotsɔ do ka kple CaCl2 drying tube) dea 1 L kɔ etɔ̃ ƒe nugoe si le ete la me.
Wotsɔa nitrogen ƒuƒu kɔa nugoe me, emegbe wotsɔa dzo dea eme 200 mL (3.4 mol) ethanol si me tsi mele o.
Wotsɔa sodium ga dzadzɛ g 12 (0.522 mol) dea eme le kakɛ suewo me le ʋuʋu me eye wogbugbɔa tsi ƒua gbe vaseɖe esime wòƒu keŋkeŋ.
Wotsɔa gas-geƒe ƒe mɔ̃ dea tsi la me, eye wotsɔa H2S ƒuƒu (si woƒu ɖe P2O5 dzi) ƒoa ɖi le 5–10 bubbles/sec me hena gaƒoƒo 2 le ʋuʋu me.
Ne efa vɔ la, wotsɔa ether si me tsi mele o 750 mL dea eme be wòana NaHS sodium hydrosulfide natsi keŋkeŋ.
Dɔwɔwɔ:
Woɖea atike si wotsɔ tsakae la kabakaba (coarse frit) be tsi nagaxɔe o.
Wotsɔa ether si me tsi mele o klɔa nu sesẽa 3×, emegbe wotsɔa tsi ƒua gbe le vacuum desiccator (CaCl2) me gaƒoƒo geɖe.
Nusiwo wokpɔna: 29.4 g ƒe ≥98% NaHS dzadzɛ.