ditaba

1. Mokhoa oa ho monya:
Noa khase ea hydrogen sulfide ka tharollo ea alkali sulfide (kapa caustic soda solution).Hobane khase ea hydrogen sulfide e chefo, karabelo ea ho monya e lokela ho etsoa tlasa khatello e mpe.E le ho thibela tšilafalo e phahameng ea moea ka hydrogen sulfide ka khase ea ho qeta, li-absorber tse 'maloa li sebelisoa letotong la tlhahiso,' me lihlahisoa tsa hydrogen sulfide li fokotsehile ho ea boemong bo tlaase ka mor'a ho kenngoa khafetsa.Mokelikeli o monyang o tsitsitse ho fumana sodium hydrosulfide.Foromo ea eona ea lik'hemik'hale:
H2S+NaOH→NaHS+H2O
H2S+Na2S→2NaHS

2. Sodium alkoxide e sebetsana le hydrogen sulfide e omileng ho lokisa sodium hydrosulfide:
Ka botlolong ea 150mL e nang le phala ea lekala, eketsa 20mL ea ethanol e sa tsoa qhibiliha le 2g ea likotoana tsa tšepe tsa sodium tse nang le bokaholimo bo boreleli le lera la oxide, kenya condenser ea reflux le phala e omisang holim'a flask, 'me u tiise phala ea lekala pele.Ha sodium alkoxide e e-na le metsi, eketsa hoo e ka bang 40 ml ea ethanol e feletseng ka lihlopha ho fihlela alkoxide ea sodium e qhibiliha ka ho feletseng.
Kenya tube ea khalase ka ho toba karolong e ka tlaase ea tharollo ka phala ea lekala, 'me u fete khase e omileng ea hydrogen sulfide (hlokomela hore ha ho moea o ka kenang ka har'a botlolo ka phaepeng ea lekala e tiisitsoeng).Khotsofatsa tharollo.Tharollo e ne e le suction e tlhotliloeng ho tlosa precipitate.Filtrate e ile ea bolokoa ka botlolong e ommeng ea conical, 'me 50 mL ea ether e felletseng e ile ea eketsoa, ​​​​'me palo e kholo ea pula e tšoeu ea NaHS e ile ea na hang-hang.Ho hlokahala palo e ka bang 110 mL ea ether.Sefefo se ile sa hloekisoa kapele, sa hlatsuoa ka makhetlo a 2-3 ka ether e felletseng, ea hlakoloa e omme, 'me ea beoa ka har'a vacuum desiccator.Bohloeki ba sehlahisoa bo ka fihla bohloeki ba ho hlahloba.Haeba ho hlokahala bohloeki bo phahameng ba NaHS, e ka qhibiliha ka ethanol 'me ea tsosolosoa ka ether.

3.Mokelikeli oa sodium hydrosulfide:
Hlakola sodium sulfide nonahydrate ka metsing a sa tsoa chesoa ka mouoane, ebe o hlapolla ho 13% ea tharollo ea Na2S (W/V).14 g ea sodium bicarbonate e ile ea eketsoa ho tharollo e ka holimo (100 mL) ka ho sisinyeha le ka tlase ho 20 ° C, hang-hang e qhibiliha le exothermic.Ka mor'a moo 100 ml ea methanol e ile ea kenngoa ka ho sisinyeha le ka tlase ho 20 ° C.Ka nako ena exotherm e ne e boetse e le exothermic 'me hoo e batlang e le kristale eohle ea sodium carbonate e ile ea theoha hang-hang.Ka mor'a metsotso e 0, motsoako o ne o tlhotliloeng ka ho monya 'me masalla a hlatsuoa ka methanol (50 ml) ka likaroloana.Filtrate e ne e na le e seng ka tlase ho 9 g ea sodium hydrosulfide le e seng ho feta 0.6 lekholong ea sodium carbonate.Likhakanyo tsa tsena tse peli li ka ba ligrama tse 3.5 le ligrama tse 0.2 ka 100 ml ea tharollo, ka ho latellana.

Hangata re e lokisa ka ho monya hydrogen sulfide e nang le sodium hydroxide solution.Ha litaba (karolo ea boima ba sodium hydrosulfide) e le 70%, ke dihydrate mme e le ka sebōpeho sa li-flakes;haeba litaba li le tlase, ke sehlahisoa sa metsi, ke Hydrate e meraro.