Khase e futhumetseng. Mokhoa, tlhahiso, lik'hemik'hale

Sulfur oxide (sebabole dioxide, sebabole dioxide, sebabole dioxide anhydride) ke khase e se nang mmala e nang le maemo a tloaelehileng a monko o monate (o tšoanang le monko oa mollo o khanyang). E khanyetsa tlas'a khatello mocheso oa kamore. Sulfure dioxide e qhibiliha ka metsing, 'me asiti e sa tsitsang ea sulfuric e thehoa. Ntho ena e boetse e qhibiliha ka sulfuric acid le ethanol. Ena ke e 'ngoe ea likarolo tse ka sehloohong tse etsang likhase tsa volcanic.

Kamoo u ka fumanang khase e bolila kateng

Ho hlahisa SO2 - sebabole dioxide - ka tsela ea indasteri e kentse ho chesa sulfure kapa ho chesa sulphide (haholo-holo pyrite e sebelisoa).

4FeS2 (pyrite) + 11O2 = 2Fe2O3 (oxide ea tšepe) + 8SO2 (sulfurous gas).

Tlas'a maemo a laboratori, sebabole dioxide se ka fumanoa ka ketso ea li-acid tse matla li-hydrosulfites le sulfite. Ka nako e tsoanang, sebabole dioxide se bakoang hang-hang se oela ka metsing le sebabole dioxide. Ka mohlala:

Na2SO3 (sodium sulphite) + H2SO4 (sulfuric acid) = Na2SO4 (sodium sulfate) + H2SO3 (sulfuric acid).
H2SO3 (sulfuric acid) = H2O (metsi) + SO2 (sulfur dioxide).

Mokhoa oa boraro oa ho fumana sulfurous anhydride e kenyelletsa ketso ea concentrated acid e sulfuric ka ho futhumatsa ho ea tlase-mafolofolo tšepe. Ka mohlala: Cu (koporo) + 2H2SO4 (sulfuric acid) = CuSO4 (koporo sulfate) + SO2 (sulfur dioxide) + 2H2O (metsi).

Mefuta ea Lik'hemik'hale ea Sebabole Dioxide

Morero oa sulfur dioxide ke SO3. Ntho ena e bua ka liksijene tse nang le acidic.

1. Sulfure dioxide e qhibiliha ka metsing, ka sebopeho sa sulfuric acid. Maemong a tloaelehileng, karabelo ena e ts'oaroa.

SO2 (sebabole dioxide) + H2O (metsi) = H2SO3 (sulfuric acid).

2. Ka alkalis, sebabole dioxide ke li-sulphite. Mohlala: 2NaOH (sodium hydroxide) + SO2 (khase e bolila) = Na2SO3 (sulfite ea sodium) + H2O (metsi).

3. Mokhoa oa lik'hemik'hale oa sebabole dioxide ke o phahameng haholo. Lintho tse fokolang tsa sulfurous anhydride li tsejoa haholo. Ka liketso tse joalo, tekanyo ea sulfuri khothalletso e eketseha. Mohlala: 1) SO2 (sulfur dioxide) + Br2 (bromine) + 2H2O (metsi) = H2SO4 (sulfuric acid) + 2HBr (hydrobromide); 2) 2SO2 (sebabole dioxide) + O2 (oksijene) = 2SO3 (sulfite); 3) 5SO2 (sulfur dioxide) + 2KMnO4 (potassium permanganate) + 2H2O (metsi) = 2H2SO4 (sulfuric acid) + 2MnSO4 (manganese sulfate) + K2SO4 (potassium sulfate).

Sepheo sa ho qetela ke mohlala oa ts'ebetso ea boleng ba SO2 le SO3. Ho na le ho senyeha ha tharollo ea 'mala oa violet).

4. Ka pel'a mahlahana a matla a sulfu, sulfurous anhydride e ka hlahisa lisebelisoa tsa oxidizing. Ho etsa mohlala, ho hlaphoheloa sebabole ho tswa ho likhase tsa ho tlosa likhahla indastering ea metallurgic, ho fokotseha ha sulfur dioxide le carbon monoxide (CO): SO2 (sulfur dioxide) + 2CO (carbon monoxide) = 2CO2 (carbon dioxide) + S (sebabole).

Hape, metsoako ea oxidizing ea ntho ena e sebelisetsoa ho hlahisa phosphorus-rich xylitol: PH3 (phosphine) + SO2 (sulfurous gas) = H3PO2 (phosphoric acid) + S (sebabole).

Moo sulfur dioxide e sebelisoang teng

Ha e le hantle, sulfur dioxide e sebelisoa ho hlahisa acid e sulfuric. E boetse e sebelisoa e le mokhoa oa ho sireletsa (E-220) ho hlahisa lino tse tahang tse nyenyane (veine le lino tse ling tsa sehlopha sa theko e bohareng). Ka lebaka la thepa ea khase ena, ho bolaea mefuta e sa tšoaneng ea microorganisms, ba fumigate mehaho ea polokelo le limela tsa meroho. Ho phaella moo, sulfur oxide e sebelisoa bakeng sa ho phalla boea, silika, joang (thepa e ke keng ea qojoa ka chlorine). Libakeng tsa laboratori, sebabole dioxide se sebelisoa e le solvent le ho fumana letsoai le sa tšoaneng la sulfuric acid.

Liphello tsa tlhaho

Khase ea sulfure e na le thepa e matla ea chefo. Matšoao a chefo - khohlela, khohlo e bohloko, lentsoe la ho utloahala, mofuta oa tatso molomong, ts'oaetso e matla molaleng. Ha sebabole dioxide se phunyeletsoa haholo, ho ba thata ho metsa le ho tsuba, ho ferekanya puo, ho nyefoloha le ho hlatsa, mohlomong ho ntlafatsoa ha edema e matla.

MPC ea sebabole dioxide:
- ka tlung - 10 mg / m³;
- Ka karolelano letsatsi le leng le le leng ka nako e ngata moeeng o ka hare ke 0,05 mg / m³.

Ho ba le kutloisiso ho sulfur dioxide ka bomong, limela le liphoofolo li fapane. Ka mohlala, har'a lifate, oak le birch ke tsona tse tsitsitseng ka ho fetisisa, le tse nyenyane-tse nang le phaene le phaene.