Sodium Bicarbonate Solution: Sodium Hydrosulfide lei kalnak lam

Ti a ngei lomi sodium hydrosulfide

A cunglei langhtermi bantuk in a fekmi ti a um lomi thil sining tangah timhtuah.

Ti chung NaHS cawhmi

Sodium Sulfide nonahydrate (Na2S·9H2O) cu a thar in thletmi ti ah cawh in13% (w/v) Na2S cawhmi.

Hnawmhnak tang le a tanglei 20°C, 14 g NaHCO3 ah chap a si 100 mL hi cawhmi, a rannak in a rawkmi le exothermic lehrulhnak a chuahter.

100 mL methanol cu ​​an chap (lumnak

Minute 10 hnu ah, cawhmi cu thlet a si, cun a tangmi cu 50 mL methanol in tawl a si.

Filtrate ah ≥9 g NaHS le ≤0.6 g Na2CO3 (~3.5 g NaHS le 0.2 g Na2CO3 per 100 mL) aa tel.

Sodium hydrosulfide phun chuahtu, data a um, man loin zohchunhmi hmuh awkah hika hi hmet.