Yub me Sodium Hydrosulfide ki NaOH Absorption

2025-08-14

Yo me kwanyo NaOH macon

Ka NaHS sodium hydrosulfide concentration oo 70%, en yubu dihydrate flakes.

I rwom ma piny, en bedo calo pii ma ki lwongo ni trihydrate.

Kit me:

Gin ma ki lwongo ni 1 L three-necked round-bottom flask tye ki gin ma ki lwongo ni stirrer ki reflux condenser (ma ki keto i CaCl2 drying tube).

Ki lwoko flask ni ki nitrogen ma otwo, ki dong ki keto iye 200 mL (3.4 mol) anhydrous ethanol.

12 g (0.522 mol) me jami ma ki lwongo ni sodium metal ki medo i dul ma nok ma ki lwongo ni reflux ki reflux nio ka otum woko.

Ki keto gin ma ki lwongo ni gas inlet tube i pii ni, ki H2S ma otwo (ma otwo i kom P2O5) ki keto i 5-10 bubbles/sec pi 2 h ma ki tye ka buru ne.

Iyonge ngiic, 750 mL anhydrous ether ki medo me juku NaHS sodium hydrosulfide weny.

Tic:

Gin ma ki rubu ni ki yubu oyot (coarse frit) me gengo pii me donyo iye.

Gin ma ki lwongo ni solid ni ki lwoko 3× ki anhydrous ether, ki dong ki juku ne i vacuum desiccator (CaCl₂) pi cawa mogo.

Gin ma ki nongo: 29.4 g me ≥98% NaHS maleng.