Sulfur dioxide. Formula, samun, sinadaran Properties

Oxide sulfur (sulfur dioxide, sulfur dioxide, sulfur dioxide) - shi ne mai colorless iskar gas da ciwon kullum kaifi halayyar wari (wari kama da wani hasken ashana). Liquefied karkashin matsin a dakin da zazzabi. Sulfur dioxide ne mai narkewa a cikin ruwa, sa'an nan ya kafa m sulfuric acid. Har ila yau, wannan abu ne da narkar da a sulfuric acid da kuma ethanol. Wannan shi ne daya daga cikin babban aka gyara daga cikin abun da ke ciki na volcanic gas.

Kamar yadda shirya sulfur dioxide

Shiri SO2 - sulfur dioxide - masana'antu Hanyar kunshi a kona sulfur ko roasting na sulfides (pyrite ne, yafi amfani).

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

A awon yanayi, da sulfur dioxide da za a iya samu ta hanyar da mataki na karfi acid hydrosulfites da sulfites. Kamar wancan ne sakamakon sulfurous acid nan da nan decomposes zuwa ruwa da sulfur dioxide. Ga misali:

Na2SO3 (sodium sulfite) + H2SO4 (sulfuric acid) = Na2SO4 (sodium sulphate) + H2SO3 (sulfurous acid).
H2SO3 (sulfurous acid) = H2O (ruwa) + SO2 (sulfur dioxide).

The uku Hanyar samar da sulfur dioxide da aka fallasa su mayar da hankali sulfuric acid ta gasa a kan wani m aiki karafa. Ga misali: Cu (jan) + 2H2SO4 (sulfuric acid) = CuSO4 (jan sulfate) + SO2 (sulfur dioxide) + 2H2O (ruwa).

Chemical Properties na sulfur dioxide

Da dabara na sulfur dioxide - SO3. Wannan abu da dangantaka da acidic oxides.

1. The sulfur dioxide dissolves a ruwa, sa'an nan ya kafa sulphurous acid. Karkashin al'ada yanayi, wannan dauki reversible.

SO2 (sulfur dioxide) + H2O (ruwa) = H2SO3 (sulfurous acid).

2. alkalis sulfur dioxide kafa sulfite. Ga misali: 2NaOH (sodium hydroxide) + SO2 (sulfur dioxide) = Na2SO3 (sodium sulfite) + H2O (ruwa).

3. Chemical sulfur gas aiki ne isasshe high. A mafi furta rage Properties na sulfur dioxide. A irin halayen da mataki na sulfur hadawan abu da iskar shaka ƙaruwa. Ga misali: 1) SO2 (sulfur dioxide) + Br2 (bromine) + 2H2O (ruwa) = H2SO4 (sulfuric acid) + 2HBr (hydrogen bromide). 2) 2SO2 (sulfur dioxide) + O2 (oxygen) = 2SO3 (sulfite). 3) 5SO2 (sulfur dioxide) + 2KMnO4 (potassium permanganate) + 2H2O (ruwa) = 2H2SO4 (sulfuric acid) + 2MnSO4 (manganese sulphate) + K2SO4 (potassium sulfate).

Last martani - wani misali da wani high quality-martani ga SO2 da SO3. Purple discoloration auku) bayani.

4. A cikin sharuddan gaban karfi rage sulfur dioxide iya nuna oxidizing Properties. Alal misali, domin cire a cikin metallurgical masana'antu sulfur daga flue iskar, ta amfani da reconstitution na sulfur dioxide da carbon monoxide (CO): SO2 (sulfur dioxide) + 2Kor (carbon monoxide) = 2CO2 (carbon dioxide) + S (sulfur).

Har ila yau oxidative Properties na wannan abu da ake amfani da su samu fosfornovaristoy ksiloty: PH3 (phosphine) + SO2 (sulfur dioxide) = H3PO2 (fosfornovaristaya acid) + S (sulfur).

Ina amfani da sulfur dioxide

Kullum da sulfur dioxide da aka yi amfani da, don samar da sulfuric acid. Har ila yau, shi ne amfani da wata hana aifuwa na maza (E-220) a cikin yi da m yanã shã (ruwan inabi, da sauran drinks talakawan farashin category). Saboda da dukiya da wannan gas ya kashe wani iri-iri na kananan kwayoyin halitta, da suka fumigated warehouses da kuma kayan lambu store. Bugu da kari, sulfur dioxide da ake amfani da bleaching ulu, siliki, karmami (wadanda kayan da ba za a iya bleached da chlorine). A cikin dakunan gwaje-gwaje na sulfur dioxide da aka yi amfani da matsayin sauran ƙarfi kuma su sami daban-daban salts na sulfurous acid.

physiological effects

Sulfur dioxide yana da karfi da mai guba Properties. Bayyanar cututtuka na guba - tari, runny hanci, hoarseness, musaman iyawa a bakin, wani karfi cakulkuli a makogwaro. Inhalation na sulfur dioxide a high yawa taso wahala hadiya da hushi, jawabin cuta, tashin zuciya da kuma amai iya ci gaba m huhu edema.

MPC da sulfur dioxide:
- a ɗaka - 10 MG / m³.
- talakawan iyakar aiki-a iska - 0.05 MG / m³.

Ƙima zuwa sulfur dioxide a cikin mutum mutane, shuke-shuke da dabbobi suna daban-daban. Alal misali, daga cikin mafi resistant itatuwa Birch da kuma itacen oak, da kuma akalla - spruce kuma Pine.