Ib acidic pH (hauv qab 7) tuaj yeem ua rau acid corrosion. Demineralization tshem tawm cov ntxhia ions (piv txwv li cov khib nyiab) ntawm dej, tab sis tsis muaj peev xwm tshem tawm cov pa roj. … Thaum CO2 yaj nyob rau hauv cov dej demineralized, tsim carbonic acid, pH ntawm cov dej poob (feem ntau yog li ntawm 5 los yog 6).
Vim li cas dej demineralised corrosive?
Acid Corrosion
Thaum oxygen dissolves hauv dej demineralised , cov tshuaj tiv thaiv oxidation corrodes cov hlau. Tab sis thaum carbon dioxide dissolves, carbonic acid yog tsim. … Lub xub ntiag ntawm carbonic acid ua rau txo qis pH ntawm cov dej los ntawm kev nyeem alkaline mus rau acidic pH ntawm 5.
Puas deionized dej ua rau corrosion?
Deionized dej thaum sib cuag nrog carbon steel tuaj yeem ua rau xeb vim nws cov ntsiab lus tsis tshua muaj zog. … Cov dej deionized uas feem ntau tau npaj thiab khaws cia hauv cov hlau tsis muaj steel, ib yam li cov hlau carbon hlau yuav paug cov dej ntshiab.
YYog dej deionized corrosive rau stainless hlau?
Stainless steel.
Stainless steel yog qhov kev xaiv ntau tshaj plaws vim yog siv keeb kwm thiab vim nws tsis yoojyim rau corrosion los yog leaching thaum siv nrog deionized lossis ntshiab dej. Nyob rau theem siab ntawm purity, stainless hlau yuav leaching dhau sij hawm thiab tuaj yeem corrode yog tias cov dej pH puas dhau los ua kua qaub lossis alkaline.
Puas cov dej distilled tsawg corrosive rau hlau?
Cov dej distilled thiab dej deionized muaj cov ntsiab lus tsawg ntawm cov ntsev yaj. Cov hom dej no muaj cov nyhuv corrosion tsawg heev ntawm cov khoom siv hlau txawm tias cov pa oxygen siab heev.
