Isixazululo se-Sodium Bicarbonate: Indlela eya ku-Sodium Hydrosulfide
Okunganamanzi isodiyamu ye-hydrosulfide
Ilungiselelwe njengombana kuchaziwe ngehla ngaphasi kwemibandela eqinileko enganawo umswakama.
Isisombululo se-NaHS esinamanzi
I-Sodium Sulfide i-nonahydrate (Na2S·9H2O) ihlanjululwa emanzini asanda kuhlanzwa ukwenza13% (w/v) isisombululo se-Na2S.
Ngaphasi kokuvuselela begodu ngaphasi 20°C, 14 g NaHCO3 ifakwe ku 100 mL yesixazululo lesi, okubangela ukuncibilika kwamsinyana nokusabela kwe-exothermic.
I-100 mL ye-methanol ifakwa (kugcinwa amazinga womtjhiso angaphasi kwama-20°C), okwenza bona kube namakristalu we-Na2CO3.
Ngemva kwemizuzu eli-10, ingxube iyahlungwa, bese kuthi okuseleko kuhlanzwe nge-50 mL ye-methanol.
I-filtrate ine-≥9 g ye-NaHS kanye ne-≤0.6 g ye-Na2CO3 (~3.5 g ye-NaHS kanye ne-0.2 g ye-Na2CO3 nge-100 mL).