Sulphur dioxide. Formula, ukufumana, iipropati chemical

Oksayidi sulphur (sulphur dioxide, sulphur dioxide, sulphur dioxide) - yigesi ezingenambala kokuba ivumba ngokuqhelekileyo elibukhali iimpawu (livumba ezifanayo imidlalo olukhanyayo). NeGesi phantsi koxinzelelo kubushushu igumbi. Sulphur dioxide enyibilikayo emanzini, ngaloo ndlela bokwakha sulphuric acid ezingazinzanga. Kwakhona, le nto ithe yapheliswa sulphuric acid kunye ethanol. Le yenye iinkalo eziphambili nokwakheka igesi mlilo.

Njengoko walungisa sulphur dioxide

Amalungiselelo SO2 - sulphur dioxide - indlela kwimizi sikuko umlilo nesulfure okanye kaJohn of sulfides (pyrite kakhulu kusetyenziswa).

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

Xa iimeko elebhu, ngaba sulphur dioxide ingafumaneka sisenzo enamandla asidi hydrosulfites kunye sulfites. Ngaloo ndlela kubangela kabi acid nangoko abole emanzini kunye sulphur dioxide. Umzekelo:

Na2SO3 (sodium sulfite) + H2SO4 (sulphuric acid) = Na2SO4 (sodium sulphate) + H2SO3 (kabi acid).
H2SO3 (kabi acid) = H2O (amanzi) + SO2 (sulphur dioxide).

Indlela yesithathu ukuvelisa sulphur dioxide ubethwa sulphuric acid wamandla ngokufudumeza phezu iintsimbi ngaphantsi esebenzayo. Umzekelo: Cu (ubhedu) + 2H2SO4 (sulphuric acid) = CuSO4 (sulfate yobhedu) + SO2 (sulphur dioxide) + 2H2O (amanzi).

Iipropati lwemichiza sulphur dioxide

Ifomula kwe-sulphur dioxide - SO3. Le nto inxulumene oxides emuncu.

1. I-sulphur dioxide enyibilikayo emanzini, ngaloo ndlela kusenziwa sulphurous acid. Phantsi kweemeko eziqhelekileyo, le ukusabela ingathityazwa.

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

2. alkalis sulphur dioxide bokwakha sulfite. Umzekelo: 2NaOH (Sodium hayidroksayidi) + SO2 (sulphur dioxide) = Na2SO3 (sodium sulfite) + H2O (amanzi).

3. Umsebenzi gas sulphur Chemical liphezulu ngokwaneleyo. Iipropati Ukuncitshiswa kakhulu ndathethayo ngayo sulphur dioxide. Xa ngayo ezinjalo iqondo ukunyuka sulphur igcwala. Umzekelo: 1) SO2 (sulphur dioxide) + Br2 (bromine) + 2H2O (amanzi) = H2SO4 (sulphuric acid) + 2HBr (hydrogen bromide); 2) 2SO2 (sulphur dioxide) + O2 (oksijini) = 2SO3 (sulfite); 3) 5SO2 (sulphur dioxide) + 2KMnO4 (potassium permanganate) + 2H2O (amanzi) = 2H2SO4 (sulphuric acid) + 2MnSO4 (manganese sulphate) + K2SO4 (potassium sulfate).

impendulo Last - umzekelo impendulo ophezulu ezisemgangathweni SO2 kunye SO3. kombala Purple lwenzeka isisombululo).

4. Xa Ngokwemiqathango phambi enamandla ekunciphiseni sulphur dioxide unako ukubonisa iipropati oxidizing. Ngokomzekelo, ukuze ndikhuphe kwi sulphur kushishino metallurgical evela neegesi ulwelo, esebenzisa iphelele sulphur dioxide kunye carbon monoxide (CO): SO2 (sulphur dioxide) + 2Co (carbon monoxide) = 2CO2 (carbon dioxide) + S (nesalfure).

Kwakhona iimpawu oxidative weli isetyenziswa ukufumana ksiloty fosfornovaristoy: PH3 (phosphine) + SO2 (sulphur dioxide) = H3PO2 (fosfornovaristaya acid) + S (nesalfure).

Apho kusetyenziswa sulphur dioxide

Ngokubanzi le sulphur dioxide kusetyenziswa ukuvelisa sulphuric acid. Kwakhona asisetyenziswa njenge ukubola (E-220) ekwenziweni iziselo ezibandayo (iwayini kunye nezinye iziselo avareji ixabiso category). Ngenxa kwipropati le gesi ku dlaya izinto ezincinane, baya zinambuzane izitora ivenkile yemifuno. Ukongeza, sulphur dioxide osetyenziswa mhlophe uboya, isilika, iindiza (ezo izinto ezo ezingenako eyome chlorine). Xa nakwiilebhu sulphur dioxide lisetyenziswa kuphela kunye nokufumana iityuwa ezahlukeneyo kabi acid.

imiphumela bokuphila

Sulphur dioxide uye iipropati enamandla ityhefu. Iimpawu ubuthi - a ukukhohlela, impumlo esihambisayo, hoarseness, incasa abayinqobo emlonyeni, intlantsi yovuyo ngamandla emqaleni. Inhalation kwe-sulphur dioxide kwi zoqhaphelo aphezulu kufika ubunzima yokuginya ukomiwa, nentetho engekho mgaqweni, isicaphucaphu nokugabha lisenokuba nokudumba oyingozi miphungeni.

MPC of sulphur dioxide:
- esendlini - 10 mg / m³;
- avareji eliphezulu umsebenzi-umoya - 0.05 mg / m³.

Ubuntununtunu bokuba sulphur dioxide ngomntu ngamnye, izityalo kunye nezilwanyana ezahlukileyo. Ngokomzekelo, phakathi kakhulu ukumelana imithi ezinde oki, kwaye mncinane - nespruce kunye pine.