Video: Ua li cas hlau corrode?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
xeb daim ntawv thaum hlau thiab oxygen react nyob rau hauv lub xub ntiag ntawm dej los yog noo noo nyob rau hauv cov huab cua. xeb tshwm sim thaum hlau los yog nws cov alloys, xws li steel, corrode . Qhov saum npoo ntawm ib daim ntawm hlau yuav corrode ua ntej nyob rau hauv lub xub ntiag ntawm oxygen thiab dej. Muab sijhawm txaus, txhua daim hlau yuav hloov tag nrho rau hauv xeb thiab tawg.
Tsuas yog li ntawd, ua li cas corrosion tshwm sim hauv hlau?
Corrosion tshwm sim nyob rau hauv lub xub ntiag ntawm noo noo. Piv txwv li thaum hlau Nws raug rau huab cua noo, nws reacts nrog oxygen rau daim ntawv xeb , Tus nqi ntawm cov dej complexed nrog lub hlau (III) oxide (ferric oxide) sib txawv raws li tsab ntawv "X". Ob qho dej thiab cov pa oxygen yuav tsum tau ua rau cov kev tshwm sim tom ntej.
Ib sab saum toj no, xeb cuam tshuam rau hlau li cas? Hlau muaj hlau , xws li ntau hom hlau , yuav xeb thaum raug huab cua thiab dej. Kev xeb muaj ntau yam cuam tshuam rau hlau khoom. Nws ua rau lawv zoo li txiv kab ntxwv thiab ntxhib. Nws ua rau lawv qaug zog, los ntawm kev hloov cov muaj zog hlau los yog hlau nrog flaky hmoov.
Ua raws li qhov no, nws siv sijhawm ntev npaum li cas rau hlau kom xeb?
Cia cov testtubes mus xeb rau ob lub lis piam.
Vim li cas dej thiaj ua rau xeb?
Tsis yog txhua yam hlau xeb . Ntawm qhov tod tes, hlau xeb vim nws tsim hydrated hlau oxide thaum nws los rau hauv kev sib cuag nrog dej (los yog ya raws hauv huab cua) thiab oxygen. Kev xeb tsis tuaj yeem tshwm sim tsis muaj ob qho tib si dej thiab oxygen. Dej pab hlau react nrog oxygen los ntawm kev rhuav tshem cov pa molecule.
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