I-oxidation yenzeka njani?
I-oxidation yensimbi yenzeka xa i-ionic chemical reaction isenzeka kwintsimbi xa i-oxygen ikhona. Iifowuni zihamba ukusuka kwinyithi ukuya kwiamolekyu zomoya-moya ngeli xesha. I-oksijeni ye-oxygen engenziyo ize ivelise kwaye ifake isinyithi. Oku kukhokelela ekudalweni komphezulu we-oxide. Ukuxutywa kwindlela yokutshatyalaliswa kwesinyithi.
Xa Ukuxhaswa Kwenzeni?
Le nkqubo yeekhemikhali iyakwenzeka okanye emoyeni okanye emva kokuba isinyithi ibonakaliswe kumanzi okanye kwi-acids.
Umzekelo oqhelekileyo ukonakaliswa kwensimbi , eyinguqulelo yee-molecule zensimbi kwi-steel surface ibe yi-oxides ye-iron, ngokuqhelekileyo i-Fe 2 O 3 ne-Fe 3 O 4 .
I-website ye-Nobel Prize website ichaza inkqubo: "Njengoko uhla lwe-oxide lukhula, izinga lokutshintsha kwe-electron liyehla, i-corrosion iyayeka kwaye isinyithi iyaba yinto engabonakaliyo. okanye ukungcola kwintsimbi okanye ukuba isiseko se-oxide sichithwa. "
Ukuba uke wambona imoto endala, inqatyisiweyo okanye iziqwenga zetsimbi, usibonile ukuxutywa komsebenzi.
Ziziphi iiMetali eziMelana nokuXhoxiswa?
Izitye ezintle, ezifana neplatinum okanye igolide , xhathisa i-oxidation kwimeko yawo yendalo. Ezinye izinyithi ezinjalo ziquka i-ruthenium, i-rhodium, i-palladium, isilivere, i-osmium kunye ne-iridium. Uninzi lwama-alloy-resistant alloys lwakhiwa ngumntu, njengamaxabiso angenasipuni kunye nobhedu .
Ngethuba umntu wayecinga ukuba zonke izitye ezinqamle ukuxutywa kweemveliso ziza kuthathwa njengezinyithi ezintle, akunjalo. I-Titanium, niobium, kunye ne-tantalum yonke inxamnye nokulwa nokubola, kodwa ayinakuhlukaniswa njengezinto ezinobuncwane. Enyanisweni, akusiwo onke amasebe enzululwazi avumelana nentsingiselo yezitye ezintle. I-Chemistry inikezela ngokucacileyo nencazelo yayo yeensimbi ezinobungcali kune-physics, eneenkcazelo engancinci.
Iimpawu ezixhathisa i-oxidation zichasene nezitye ezixhomekeke kuyo, ezaziwa njengeziseko zetsimbi. Imizekelo yesiseko sezinto ziquka ubhedu, ukukhokela, i-tin, i-aluminium, i-nickel, i-zinc, isinyithi, isinyithi, i-molybdenum, i-tungsten kunye nezinye izitishi zenguqu. I-Brass kunye nebhesi, ii-alloys zale zinyithi, nazo zikwahlulelwa njengeziseko zetsimbi.
Iimiphumo zoKhuhlane
Ukukhusela i-corrosion kuye kwaba yinkampani enenzuzo. Akukho mntu ufuna ukuqhubela imoto enqabileyo ukuba abanokukunceda. Kodwa ukubola kunokugqithiseleyo nje. Ukuchithwa kunokuba yingozi xa kuthintela iziseko ezifana nezakhiwo, amabhuloho, iibhobho zokuthuthwa kwamanzi, ukuhambisa amanzi, iinqanawa nezinye iinqanawa. Ulwalamano lunokubangela ukuba izibonelelo zenze buthathaka, zibeke ubomi engozini. Ngoko ke, ngelixa ukukhutshwa kwe-corrosion kungabi neendleko, kuyafuneka ngokuqinisekileyo.
Inkathazo ephakamileyo ephezulu ngamanzi okusela ePlint, eMichigan, yaqala ngo-2014 ibe ngumzekelo wendlela ukubola kungabangela ngayo imiphumo emibi ebomini babantu. I-Centre yoPhando lweManzi inikezela ngempawu esilumkiso yokuba amanzi akho ayenokuchaphazeleka ngokuqhwala kwizinga elithile. Ukuba ufumanisa ukuba kufuneka usebenzise amanzi akho ixesha elincinci lokuphelisa i-discoloration okanye ukunambitheka okukrakra, mhlawumbi umba kunye nokutshabalalisa kwimibhobho yakho.
Izibonda ezihlaza okomhlaza ohlaza okwesibhakabhaka kwimibhobho okanye kunye namacandelo okubhobhoza ngobhedu nenye into ebonisa ukubola.