Kupanga Sodium Hydrosulfide kwiinda mukunywa NaOH
Nzila Yachiindi Yakunywa NaOH
Eelyo NaHS sodium hydrosulfide niyasika 70%, ilapanga zibeela zya dihydrate.
Aawo mpozili munsi, zilajanika mbuli trihydrate yamaanzi.
Nzila yakutobelezya:
I 1 L ya flask iijisi nsingo zyotatwe iizungulukide ilijisi chintu chakuzungaanya antoomwe a reflux condenser (chakaswaangene a CaCl₂ drying tube).
Ifulasiki ilasanzyigwa a nitrogen, mpawo yakabikkwa 200 mL (3.4 mol) anhydrous ethanol.
12 g (0.522 mol) ya nsimbi ya sodium iisalala ilabikkwa muzibeela ziche kakuli kuzungaanizyigwa akujokezyegwa kusikila yamana.
Insinga yakunjizya muya ilabikkwa mumaanzi, mpawo H₂S (yakayumide atala a P₂O₅) ilabumbuluka a 5-10 bubbles/sec kwamahola obile kakuzungaanizyigwa.
Nikwakamana kutontola, 750 mL ya ether iitakwe maanzi yakabikkwa kuti ibweze NaHS sodium hydrosulfide yoonse.
Kubeleka:
Musanganisyo ulafwambana kusefwa (frit mpati) kuchitila kuti utanjili maanzi.
Ichintu chiyumu chisanzyigwa 3× a anhydrous ether, mpawo chiyuminizyigwa mu vacuum desiccator (CaCl₂) kwamahola miingi.
Kuzyala: 29.4 g ya ≥98% NaHS iisalala.