Leej faj dioxide

Sulfur oxide (IV) muaj ib lub npe, kuj officially siv nyob rau hauv cov tshuaj science - leej faj dioxide, nyob rau hauv tas li ntawd, qhov no tshuaj yog tseem hu ua cov leej faj dioxide los yog leej faj dioxide. Sulfur oxide (IV) nyob rau hauv ib txwm tej yam kev mob - qhov no gas muaj tsis muaj xim, nrog ib tug peculiar tsis kaj siab tsw, uas yog reminiscent ntawm tsis hnov tsw ntawm ib tug match thaum lub sij hawm ntawm tiv cav tseb.

Cov pa roj yog liquefied los ntawm nce lub siab, lub kub tej zaum yuav tsis txawv los ntawm ib tug dog dig chav tsev. Cov tshuaj yeeb dej caw yog soluble nyob rau hauv cov dej rau muab tsis ruaj tsis khov sulfurous acid. Lub degree ntawm dej solubility ntawm cov leej faj dioxide yog ib tug kub ntawm 20 C 11,5 grams ntawm neeg sawv cev rau ib 100 grams dej. Interestingly, thaum kub ntawm lub nce, cov theem ntawm solubility ntawm lub compound txo. Dhau li dej, sulfur dioxide yog soluble nyob rau hauv ethanol thiab sulfuric acid. Nyob rau hauv cov xwm, sulfur dioxide, uas nws mis yog SO2, yog ib tug ntawm lub ntsiab constituting volcanic roj.

Cov muaj zus tau tej cov leej faj dioxide raws li qhov ncaj burning ntawm cov leej faj tej zaum kuj yuav npaj los ntawm firing cov roj sulfides, tshwj xeeb tshaj yog xws li pyrite.

Sulfur dioxide yog tau thiab cov kev ua sim. No cov tshuaj tiv thaiv yog nqa tawm nyob rau hauv los ntawm sulfites muaj zog acids. Raws li qhov yooj yim tshuaj siv nyob rau hauv lub chaw soj nstuam thiab hydrosulfites. Xws li ib tug tshuaj tiv thaiv yog muab los ntawm cov kab zauv: Na2SO3 + H2SO4 → Na2SO4 + H2SO3. Cov tshwm sim ntawm cov tshuaj tiv thaiv raws li pom los ntawm cov kab zauv, ib tug sulfurous acid, uas vim nws tsis khov tam sim ntawd decomposes rau leej faj dioxide thiab dej.

Tsawg khoom siv rau ib txoj kev nyob rau hauv uas muaj feem rau ntawm qhov tsawg active co nrog nta sulfuric acid, nyob rau cov tshuaj tiv thaiv yuav tsum mus los ntawm cua sov rau cov ua hauj lwm tov.

Major tshuaj thaj chaw ntawm cov leej faj dioxide.

Sulfur dioxide yog absorbed rau hauv lub ultraviolet khwv ntawm lub spectrum. Nws yog txwv kom muab zais li ib tug acidic oxide. Raws li twb tau sau tseg, cov leej faj dioxide yog soluble nyob rau hauv cov dej nyob rau hauv ib tug reversible tshuaj cov tshuaj tiv thaiv.

Thaum cov kev taw qhia ntawm cov roj rau hauv cov tshuaj tiv thaiv nrog alkali ua sulfites nyob rau hauv Feem ntau, tau hais tias yuav tuab lub reactivity ntawm no gas, nws yuav tsum lees nws yog heev siab heev. Thaum lub sij hawm tshua feem ntau manifested txo thaj chaw ntawm lub substance, thiab cov theem ntawm cov leej faj oxidation thaum lub sij hawm cov tshuaj tiv thaiv, yuav ntau dua.

Oxidation thaj chaw ntawm cov leej faj dioxide manifests thaum lub sij hawm tshua nrog muaj zog reductants. Piv txwv li, nyob rau hauv tus muaj sector rau zus tau tej cov leej faj siv txoj kev warped nyob rau hauv nws restoration carbon oxide (II).

Sulfur oxide (IV) nyob rau hauv lub tshuaj lag luam mas siv rau tsim sulfuric acid. Nyob rau hauv Feem ntau, nws daim ntawv thov yog sab heev thiab tsis meej xwm. Qhov tseeb hais tias leej faj dioxide yog tshuaj lom. Los ntawm nqus tau pa yuav tau txais lom mob mob qa, los ntswg qhov ntswg, hnoos. Nqus tau pa leej faj dioxide kev puas tsuaj coj cov ntau tshaj yog saum toj no rau hauv lub concentration ntawm cov tshuaj yeeb dej caw. Thaum END yuav tshwm sim loj heev txim, mus txog rau txhawm chim, kev hais lus tsiv siab thiab pulmonary edema.

Sulfur oxide (IV) yog siv nyob rau hauv cov zaub mov kev lag luam, nyob rau hauv particular nws yog tam sim no nyob rau hauv slaboalkogolnyh dej haus raws li ib tug preservative. Nyob rau hauv lub textile kev lag luam nws yog siv raws li ib tug constituent caij ntawm txhais tau tias kev tshuaj dawb tso ib tug ntau yam ntawm cov ntaub ntawv uas yuav tsis tau bleached tshuaj tebchaw.

Nyob rau hauv industrial thiab kev kawm lub chaw soj nstuam cov leej faj oxide (IV) ua raws li ib tug hnyav indispensable, tab sis nyob rau hauv cov ntaub ntawv no nws yuav tsum tau nco ntsoov tias twb nyob rau hauv cov roj yuav muaj impurities ntawm dej thiab SO3, uas mogtst cuam tshuam rau kev coj dawb huv thiab qhov tseeb chav kawm ntawm cov tshuaj tiv thaiv nyob rau hauv lub xub ntiag ntawm silica. Yog li ntawd, nyob rau hauv cov neeg mob cov roj yog kev dawb huv los ntawm xeem dhau los ntawm ib lub lim uas muaj concentrated H2SO4, yeej ib txwm nyob rau hauv ib tug kaw nkoj qab thus.

Vim nws kim heev kev siv cov leej faj dioxide ua raws li ib tug ntawm cov loj tej yam ua rau lub ntuj kaaj quas lug. Tshwj xeeb yog txaus ntshai emissions los ntawm combustion ntawm peb li ib txwm zog - thee, natural gas thiab roj. Raws li ib tug txoj cai, feem ntau ntawm cov kev phiv los yog los ntawm los nag, vim hais tias ntawm rainwater - kawg cov khoom no yog tam sim no nyob rau hauv ib tug aerosol daim ntawv.

Tam sim no, lub siab tshaj plaws concentration ntawm no gas lom nyob rau hauv sab qaum teb hemisphere, tshwj xeeb yog nyob rau hauv lub tebchaws United States, Ukraine, Western teb chaws Europe thiab nyob rau hauv lub sab hnub poob cheeb tsam ntawm Russia.