Qhov sib txawv tseem ceeb ntawm H2S thiab SO2 yog H2S muaj ntxhiab tsw ntawm lub qe lwj, whereas SO2 muaj ntxhiab tsw ntawm qhov sib tw.
Ob qho H2S thiab SO2 yog cov khoom sib xyaw ua ke ntawm chav sov. Cov tshuaj no muaj sulfur atoms. H2S yog hydride ntawm sulfur thaum SO2 yog ib qho oxide ntawm leej faj. Tsis tas li ntawd, ob lub pa roj no muaj ntxhiab tsw ntxhiab.
H2S yog dab tsi?
H2S yog hydrogen sulfide. Nws yog ib qho roj ntawm chav tsev kub, muaj qhov tsw ntawm lub qe lwj. Yog li ntawd, nws muaj ib tug pungent thiab irritating tsw. Cov roj no muaj tshuaj lom heev. Tsis tas li ntawd, nws yog corrosive thiab flammable thiab. Yog li ntawd, peb yuav tsum ua tib zoo saib xyuas nws. Cov molar loj ntawm H2S yog 38.09 g / mol. Nws zoo nkaus li roj tsis muaj xim.
Cov roj H2S yog me ntsis denser dua li huab cua hauv huab cua. Txawm li cas los xij, kev sib xyaw ntawm huab cua thiab H2S tuaj yeem ua rau muaj kev cuam tshuam tawg. Tsis tas li ntawd, cov roj no kub hnyiab hauv huab cua nrog lub nplaim xiav thaum muaj cov pa oxygen. Cov tshuaj tiv thaiv no muab SO2 thiab dej. Feem ntau, H2S roj ua raws li tus neeg sawv cev txo qis vim tias nws tuaj yeem raug oxidation nkaus xwb txij li cov sulfur atom hauv qhov sib xyaw no nyob hauv nws lub xeev oxidation tsawg kawg nkaus (tsis tuaj yeem txo ntxiv).
Daim duab 01: Tus qauv ntawm H2S Gas
Peb tuaj yeem siv H2S kom tau cov tshuaj sulfur. Cov tshuaj tiv thaiv ntawm H2S thiab SO2 nyob rau hauv lub xub ntiag ntawm ib tug catalyst thiab kub kub muab elemental sulfur thiab dej. Qhov no yog ib txoj hauv kev tseem ceeb los pov tseg H2S. Ntxiv mus, H2S yog me ntsis dej-soluble thiab thaum dissolution, nws muaj peev xwm tsim ib tug qaug zog acid.
H2S tuaj yeem cuam tshuam nrog cov hlau thiab ua cov hlau sulfides. Cov hlau sulfides yog cov dej-insoluble compounds uas muaj xim tsaus. Piv txwv li, peb tuaj yeem siv lead (II) acetate daim ntawv siv los kuaj H2S hloov zuj zus los ntawm cov qauv vim tias cov txhuas hauv daim ntawv tuaj yeem ua rau H2S ua cov xim dub txhuas sulfide.
SO2 yog dab tsi?
SO2 yog sulfur dioxide. Nws yog cov pa roj lom uas tsis muaj xim thiab muaj ntxhiab tsw ntawm qhov sib tw. Nyob rau hauv qhov xwm txheej, cov pa roj no hloov zuj zus los ntawm volcanic eruptions. Cov molar loj ntawm cov roj no yog 64.8 g / mol. Nws yog me ntsis dej-soluble thiab thaum dissolution, nws tsim sulfurous acid. Tsis tas li ntawd, cov roj no tuaj yeem ua rau ob qho tib si oxidation thiab txo cov tshuaj tiv thaiv vim hais tias cov sulfur atom hauv cov molecule no nyob nruab nrab ntawm qhov tsawg tshaj plaws thiab siab tshaj plaws oxidation hais tias cov sulfur atom tuaj yeem pom. Yog li, SO2 tuaj yeem ua ob qho tib si txo tus neeg sawv cev thiab ua tus neeg sawv cev oxidizing.
Daim duab 02: Tus qauv ntawm SO2 Gas
Thaum xav txog kev tsim cov SO2, nws feem ntau yog tsim los ntawm sulfuric acid manufacturing. Ntxiv mus, SO2 roj yog cov khoom ntawm cov khoom siv hluav taws xob hluav taws xob (los yog cov khoom siv hluav taws xob uas muaj cov sulfur). Tsis tas li ntawd, cov roj no yog cov khoom siv los ntawm kev tsim cov calcium silicate cement. Peb tuaj yeem tsim SO2 los ntawm cov tshuaj tiv thaiv ntawm aqueous puag nrog SO2.
Qhov txawv ntawm H2S thiab SO2 yog dab tsi?
Ob leeg H2S thiab SO2 yog cov khoom sib xyaw ua ke ntawm chav tsev kub. Qhov sib txawv tseem ceeb ntawm H2S thiab SO2 yog tias H2S muaj qhov tsis hnov tsw ntawm lub qe lwj, qhov SO2 muaj qhov tsw ntawm qhov sib tw hlawv. Yog li ntawd, ob lub gases no muaj ib tug pungent tsw. Dhau li ntawd, peb tuaj yeem tsim H2S los ntawm kev sib cais ntawm cov roj qaub thaum peb tuaj yeem tsim SO2 raws li cov khoom lag luam los ntawm kev tsim cov sulfuric acid.
Thaum xav txog kev siv cov roj no, peb tuaj yeem siv H2S rau kev tsim cov tshuaj sulfur, hauv kev tshuaj xyuas zoo ntawm cov hlau, ua cov khoom ua ntej rau hlau sulfides, thiab lwm yam., whereas SO2 yog pab tau raws li ib tug precursor rau sulfuric acid, raws li ib tug khoom noj additive, raws li ib tug txo tus neeg sawv cev, nyob rau hauv winemaking, thiab lwm yam.
Hauv qab infographic qhia qhov txawv ntawm H2S thiab SO2.
Summary – H2S vs SO2
Ob qho H2S thiab SO2 yog cov khoom sib xyaw ua ke ntawm chav sov. Qhov sib txawv tseem ceeb ntawm H2S thiab SO2 yog tias H2S muaj qhov tsis hnov tsw ntawm lub qe lwj, qhov SO2 muaj qhov tsw ntawm qhov sib tw hlawv.
