Kupanga Sodium Hydrosulfide kudzera mu NaOH Absorption
Njira Yachizolowezi Yoyamwitsa NaOH
Pamene kuchuluka kwa NaHS sodium hydrosulfide kufika 70%, imapanga ma flakes a dihydrate.
Pakuchepa kwa madzi, imakhala ngati trihydrate yamadzimadzi.
Ndondomeko:
Botolo lozungulira la 1 L lokhala ndi khosi zitatu lili ndi chosakaniza ndi reflux condenser (yolumikizidwa ku chubu chowumitsira cha CaCl₂).
Botololo limatsukidwa ndi nayitrogeni youma, kenako limayikidwa 200 mL (3.4 mol) ethanol yopanda madzi.
12 g (0.522 mol) ya sodium metal yoyera imawonjezedwa m'zidutswa tating'onoting'ono pansi pa kusakaniza ndi kubwezeretsanso mpaka itasungunuka kwathunthu.
Chubu cholowera mpweya chimayikidwa mumadzimadzi, ndipo H₂S youma (youma pa P₂O₅) imathiridwa thovu pa thovu 5–10/sekondi kwa maola awiri mukusakaniza.
Pambuyo poziziritsa, 750 mL anhydrous ether imawonjezedwa kuti ipangitse NaHS sodium hydrosulfide kukhala yolimba.
Kukonzekera:
Chosakanizacho chimasefedwa mwachangu (coarse frit) kuti chisayamwe chinyezi.
Cholimbacho chimatsukidwa ndi 3× ndi anhydrous ether, kenako chimaumitsidwa mu vacuum desiccator (CaCl₂) kwa maola angapo.
Zokolola: 29.4 g ya ≥98% NaHS yoyera.