Sulphur dioxide. Formula, ukuthola, amakhemikhali izakhiwo

Oxide nesibabule (i-sulphur dioxide, i-sulphur dioxide, i-sulphur dioxide) - iyinhlangano igesi kungenambala kokuba ngokuvamile abukhali isici iphunga (iphunga olufana ukufana esikhanyayo). Liquefied ngaphansi kwengcindezi emazingeni okushisa okuvamile. Sulphur dioxide kuyinto oncibilikayo emanzini, kanjalo ukwakha engazinzile sulfuric acid. Futhi, lolu ketshezi sihlakazwa sulfuric acid kanye ethanol. Lena ngenye yezingxenye esemqoka of the ukwakheka igesi mlilo.

Njengoba okulungiselelwe sulphur dioxide

Ukulungiselela SO2 - sulphur dioxide - indlela zezimboni liqukethe lomlilo nesibabule noma yokuwugazinga ka sulfides (pyrite ikakhulukazi esetshenziswa).

4FeS2 (pyrite) + 11O2 = 2Fe2O3 (yensimbi oxide) + 8SO2 (sulphur dioxide).

Ezimweni laboratory, le dioxide sulphur ingatholakala ngenxa yesenzo eqinile acid hydrosulfites futhi sulfites. Ngakho okuholela sulfurous acid ngokushesha ubola emanzini ne-sulfur dioxide. Ngokwesibonelo:

Na2SO3 (i-sodium sulfite) + H2SO4 (sulfuric acid) = Na2SO4 (i-sodium sulphate) + H2SO3 (sulfurous acid).
H2SO3 (sulfurous acid) = H2O (amanzi) + SO2 (sulphur dioxide).

Indlela yesithathu esikhiqiza sulphur dioxide echayeke kanzulu sulfuric acid ngokubeka amalahle kwi izinsimbi kancane esebenzayo. Ngokwesibonelo: Cu (ithusi) + 2H2SO4 (sulfuric acid) = CuSO4 (ithusi sulfate) + SO2 (sulphur dioxide) + 2H2O (amanzi).

izakhiwo Chemical-sulfur dioxide

Ifomula-sulfur dioxide - SO3. Lokhu kwaziswa iphathelene oxides ene-asidi.

1. dioxide sulphur ancibilikisa emanzini, kanjalo ukwakha sulphurous acid. Ngaphansi kwezimo ezivamile, lesi simo esethola.

SO2 (sulphur dioxide) + H2O (amanzi) = H2SO3 (sulfurous acid).

2. alkalis sulphur dioxide ukwakha sulfite. Ngokwesibonelo: 2NaOH (sodium hydroxide) + SO2 (sulphur dioxide) = Na2SO3 (i-sodium sulfite) + H2O (amanzi).

3. Chemical umsebenzi sulphur gas sezingeni eliphezulu. Buphawuleka kakhulu ukunciphisa izakhiwo-sulfur dioxide. Ngo ukusabela okunjalo degree of sulphur namachibi iyakhula. Ngokwesibonelo: 1) SO2 (sulphur dioxide) + Br2 (uxhumano lokudlulisa) + 2H2O (amanzi) = H2SO4 (sulfuric acid) + 2HBr (hydrogen bromide); 2) 2SO2 (sulphur dioxide) + O2 (i-oksijini) = 2SO3 (sulfite); 3) 5SO2 (sulphur dioxide) + 2KMnO4 (potassium permanganate) + 2H2O (amanzi) = 2H2SO4 (sulfuric acid) + 2MnSO4 (manganese sulphate) + K2SO4 (potassium sulfate).

Ukusabela Kugcine - isibonelo impendulo eliphezulu ukuze SO2 futhi SO3. Wenza ashintshe umbala Purple kwenzeka) isixazululo.

4. Ngokuya khona oqinile ekunciphiseni sulphur dioxide kungaba abonise izakhiwo oxidizing. Ngokwesibonelo, ukuze kukhishwe ku Metallurgical umkhakha nesibabule kuvela amagesi flue, usebenzisa Reconstitution-sulfur dioxide ne-carbon monoxide (CO): SO2 (sulphur dioxide) + 2CO (carbon monoxide) = 2CO2 (carbon dioxide) + S (sulphur).

Futhi izakhiwo oxidative yalolu ketshezi isetshenziswa ukuthola ksiloty fosfornovaristoy: PH3 (phosphine) + SO2 (sulphur dioxide) = H3PO2 (fosfornovaristaya acid) + S (sulphur).

Lapho esetshenziswa sulphur dioxide

Ngokuvamile dioxide sulphur isetshenziswa ukukhiqiza sulfuric acid. Futhi-ke isetshenziswa njengophawu uyakulondoloza (E-220) enkulu ekwakhekeni iziphuzo ezibandayo (iwayini nezinye iziphuzo sokwenyusa amanani isigaba). Ngenxa impahla le gesi ukubulala ezihlukahlukene ezincane, base fumigated emafektri nemifino esitolo. Ngaphezu kwalokho, i-sulphur dioxide isetshenziselwa mhlophe uvolo, usilika, utshani (labo izinto esingenakubalwa bleached chlorine). Esikhathini laboratories-sulfur dioxide isetshenziswa njengoba kuphela futhi ukuthola nosawoti ezihlukahlukene sulfurous acid.

imiphumela bokuphila

Sulphur dioxide has a izakhiwo eziqinile anobuthi. Izimpawu ubuthi - ukukhwehlela, amakhala yisisu, hoarseness, ukunambitheka eyinqaba emlonyeni, a ukuhlekisa eqinile emphinjeni. Inhalation-sulfur dioxide at lokuhlala eliphezulu kuphakama ukugwinya kanye choking, inkulumo disorder, isicanucanu nokuhlanza angagcina acute edema yamaphaphu.

MPC-sulfur dioxide:
- endlini - 10 mg / m³;
- Isilinganiso esiphezulu umsebenzi-emoyeni - 0.05 mg / m³.

Ukuzwela sulphur dioxide kubantu ngabanye, izitshalo nezilwane zihlukile. Ngokwesibonelo, phakathi ukumelana kakhulu izihlahla birch kanye oki, futhi okungenani - sonwele and kaphayini.