Iindaba

1. Indlela yokufunxa:
I-Abdrogen igesi ye-hydrogen igesi kunye nesisombululo se-alkali sulfiide (okanye isisombululo se-caustic). Kuba igesi ye-hydrogen irhasi iyityhefu, ukusabela okufundwayo kufuneka kwenziwe phantsi koxinzelelo olungalunganga. Ukwenzela ukuthintela ungcoliseko oluphezulu lomoya nge-Hydrogen kwirhasi yokuphelisa, i-Abssing Abysin isebenza kulo mbandela kwimveliso, kwaye umxholo we-hydrogen sulfide uncitshisiwe kwinqanaba eliphantsi. Ulwelo lwe-abserption lugxile ekufumaneni i-sodiumfrosulfide. Ifomula yekhemikhali:
H2S + Hayi Hayi → Nahs + h2o
H2S + na2s → i-2NAHS

I-2. I-Sodium Alkoxide iphinda iphinde isebenze nge-hydrogen ye-hydrogen ilungisa i-sodium hydrosulfide:
Kwiflask ye-150ml enombhobho wesebe, yongeza i-20ml ye-ethanol ye-ethanol entsha kunye ne-2G yeziqwenga zentsimbi, faka umbhobho wowomisayo kwiflash, kwaye uyitywine umbhobho wesebe kuqala. Xa i-sodium ye-sodium icacisiwe, yongeza malunga ne-40 ml ye-ethanol ye-ethanol kwiibatch de i-sodium ayichithwa ngokupheleleyo.
Faka ityhubhu yeglasi ngqo emazantsi esisombululo ngombhobho wesebe, kwaye udlulise igesi eyomileyo ye-hydrogen ye-hydrogen (inqaku lokuba akukho moya ungangena kwifleshi kwi-flask kwi-pipe yesebe etywiniweyo). Gqiba isisombululo. Isisombululo yayikukuqhekezwa ukuba isuse i-facipteate. I-filling igcinwe kwiflask eyomileyo, kwaye i-50 ml yongezwa, kwaye isixa esikhulu se-nahs shipiate sacaciwe ngokukhawuleza. Iyonke i-110 ml ye-ether efunekayo. I-COCCIPIPUL ikhutshelwe ngokukhawuleza, ihlanjwe izihlandlo ezingama-2-3 nge-ether epheleleyo, eyomileyo ye-ETRE, yabekwa kwi-vacuumcator. Ukucoceka kwemveliso kunokufikelela ukucoceka kohlalutyo. Ukuba ukuqina okuphezulu kuyafuneka, kunokuchithwa e-Ethanol kwaye iphinde yenziwe i-ether.

3.suldium hydrosulfide ulwelo:
Dibanisa i-sodium ye-sodium sulfide i-notydrate kumanzi asandul 'ukutsha, kwaye emva koko uye kwi-13% na2s (W / V) isisombululo. I-14 g ye-sodium bicarbonate yongezwa kwisisombululo esingasentla (i-100 ml) ngokuvuselela nangaphantsi kwe-20 ° C, inyibilikisi kwaye inyibilike kwaye inyibilike kwaye inyibilike kwaye inyibilike. Emva koko i-100 ml ye-methanol yongezwa ngokuvuselela nangaphantsi kwe-20 ° C. Ngeli xesha i-exotherm yaphinda yakhupha kwaye phantse yonke i-crystalline sodium ye-carbonate yaqala kwangoko. Emva kwemizuzu eyi-0, umxube waxhuzulwa nge-suction kunye nentsalela yahlanjwa nge-methanol (50 ml) kwizahlulo. I-fallingtretterete iqulathe ingaphantsi kwe-9 g ye-sodiumfrosulffide kwaye ingabi ngaphezu kwe-06 pesenti ye-sodium ye-sodium carbonate. Ukugxininiswa kwezi zimbini malunga ne-3.5 yeegram kunye ne-0,2 iigram kwi-100 ml yesisombululo, ngokulandelelana.

Ngokwesiqhelo siyilungisa ngokufumana i-hydrogen sulfide ngesisombululo sesodium hydroxide. Xa umxholo (iqhezu le-Sodium hydrosulfide) ngama-70%, yi-dihydrate kwaye ikwimo yefleki; Ukuba umxholo usezantsi, yimveliso engamanzi, yi-hydrate emithathu.