Wararka - Kiimikada dhimista H2S. Waxaan ka faa'iidaysanay 3 sifo oo muhiim ah oo ah molecule H2S inta lagu jiro habka yaraynta H2S.
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Kiimikada yaraynta H2S. Waxaan ka faa'iidaysanay 3 sifo oo muhiim ah oo ah molecule H2S inta lagu jiro habka yaraynta H2S.

H2S waa gaas asiidh ah waxayna cusbayn doontaa aminiin badan aminiyam hydrosulphide. Dareen-celinta si kastaba ha ahaatee waa la beddeli karaa oo waxay aasaas u tahay unugga dib-u-warshadaynta amin; milixda oo lagu soo celinayo H2S iyo amin bilaash ah kulaylka. Habkani sidoo kale wuxuu meesha ka saarayaa CO2 maadaama uu sidoo kale yahay gaas acidic ah.

H2S waa wakiil wax-yareeya oo sidaas darteed si diyaar ah ayaa loo oksijiye karaa. Xaaladda valence ee baaruudku waa -2 gudaha H2S waxaana la ogaysiinayaa ilaa 0, baaruud elemental (tusaale alkaline sodium nitrite ama hydrogen peroxide) ama +6, sulfate by chlorine dioxide, hypohalites iwm.

H2S waa nucleophile awood leh oo ay ugu wacan tahay atamka sulfur kaas oo ah saldhigga Lewis jilicsan. Elektaroonadu waxay ku jiraan 3 qolof elektaroonig ah, oo ka sii fog xudunta, dhaqdhaqaaq badan oo si fudud u barakicinaya. Tusaalaha ugu fiican ee tan waa xaqiiqda ah in H2O ay tahay dareere leh barta karkarinta 100 C halka H2S, molecule ka culus, uu yahay gaas leh dhibco karkaraya -60 C. Hantida aasaasiga ah ee Lewis ee atamka oksijiinta waxay sameysaa hydrogen aad u xoogan. bonds, in ka badan H2S, markaa farqiga weyn ee dhibic karkarinta. Awoodda nucleophilic ee atamka sulfur waxaa loo isticmaalaa falcelinta triazine, formaldehyde iyo hemiformal ama formaldehyde sii daaya, acrolein iyo glioxal.


Waqtiga boostada: Agoosto-30-2022