ozi

1. Usoro nnabata:
Were hydrogen sulfide gas na ngwọta alkali sulfide (ma ọ bụ ngwọta soda caustic). N'ihi na gas hydrogen sulfide na-egbu egbu, mmeghachi omume absorption kwesịrị ime n'okpuru nrụgide na-adịghị mma. Iji gbochie mmetọ dị elu nke ikuku site na hydrogen sulfide na gas na-ekpochapụ, a na-arụ ọrụ dị iche iche na-emepụta ihe n'usoro n'ime mmepụta, na ọdịnaya hydrogen sulfide na-ebelata na ọkwa dị ala mgbe ọ gbasasịrị ugboro ugboro. A na-etinye mmiri mmiri mmịnye ahụ iji nweta sodium hydrosulfide. Usoro kemikal ya:
H2S+NaOH→NaHS+H2O
H2S+Na2S→2NaHS

2. Sodium alkoxide na-emeghachi omume na hydrogen sulfide akọrọ iji kwadebe sodium hydrosulfide:
N'ime iko 150mL nke nwere ọkpọkọ alaka, tinye 20mL nke ethanol zuru oke nke ọhụrụ na 2g nke sodium metal nke nwere elu dị larịị na enweghị oyi akwa oxide, wụnye reflux condenser na ọkpọkọ ihicha na flask, ma buru ụzọ mechie ọkpọkọ alaka ahụ. Mgbe sodium alkoxide na-ebuli elu, tinye ihe dịka 40 ml nke ethanol zuru oke na batches ruo mgbe sodium alkoxide gbazere kpamkpam.
Fanye tube iko ozugbo n'ime ala nke ihe ngwọta site na ọkpọkọ alaka ụlọ ọrụ, ma nyefee gas hydrogen sulfide akọrọ (rịba ama na ọ dịghị ikuku nwere ike ịbanye na flask na ọkpọkọ alaka nke mechiri emechi). Mechie ngwọta ahụ. A na-enyocha ihe ngwọta ya ka ọ wepụsịa mmiri ozuzo. A na-echekwa ihe nzacha ahụ na flask conical akọrọ, na 50 ml nke ether zuru oke, na nnukwu ego nke NaHS na-acha ọcha na-agbapụta ozugbo. Ngụkọta ihe dị ka 110 ml nke ether chọrọ. A na-ewepụsị mmiri ozuzo ngwa ngwa, jiri ether zuru oke saa ugboro 2-3, hichaa nkụ, ma tinye ya n'ime igwe na-ekpo ọkụ. Ịdị ọcha nke ngwaahịa ahụ nwere ike iru ịdị ọcha nyocha. Ọ bụrụ na achọrọ NaHS ịdị ọcha dị elu, enwere ike ịgbaze ya na ethanol wee megharịa ya na ether.

3. Sodium hydrosulfide mmiri mmiri:
Gbanyụọ sodium sulfide nonahydrate n'ime mmiri nri amịpụtara ọhụrụ, wee tụgharịa ka ọ bụrụ 13% Na2S (W/V) ngwọta. A na-agbakwunye 14 g nke sodium bicarbonate na ngwọta dị n'elu (100 ml) na mkpali na n'okpuru 20 Celsius C, na-agbaze ozugbo na exothermic. Mgbe nke ahụ gasịrị, a na-etinye 100 ml nke methanol na mkpali na n'okpuru 20 Celsius. N'oge a exotherm bụ ọzọ exothermic na ọ fọrọ nke nta niile nke crystalline sodium carbonate precipitated ozugbo. Mgbe nkeji 0 gachara, a na-asacha ngwakọta ahụ na mmiri ara ma saa ihe fọdụrụ na methanol (50 ml) na akụkụ. Ihe nzacha ahụ nwere ihe na-erughị 9 g nke sodium hydrosulfide na ọ bụghị ihe karịrị 0.6 pasent nke sodium carbonate. Nchịkọta nke abụọ ahụ bụ ihe dịka gram 3.5 na 0.2 grams kwa 100 ml nke ngwọta, n'otu n'otu.

Anyị na-akwadokarị ya site n'itinye hydrogen sulfide na ngwọta sodium hydroxide. Mgbe ọdịnaya (oke nke sodium hydrosulfide) bụ 70%, ọ bụ dihydrate ma dị n'ụdị flakes; ọ bụrụ na ọdịnaya dị ala, ọ bụ ngwaahịa mmiri mmiri, ọ bụ Hydrate atọ.