Acetic acid nruab nrab: Nws yog ib qho ntawm cov khoom uas muaj zog corrosiveness hauv cov organic acids. Ordinary steel yuav raug corroded hnyav nyob rau hauv tag nrho cov concentrations thiab kub. Stainless hlau yog zoo heev acetic acid-resistant khoom. 316 stainless hlau uas muaj molybdenum tuaj yeem tsim nyog rau qhov kub thiab txias thiab dilute acetic acid chav. Thaum kub thiab siab-concentrated acetic acid los yog lwm yam corrosive media, siab alloy stainless hlau los yog fluoroplastic twj tuaj yeem xaiv.
Alkali (sodium hydroxide): Khoom noj txom ncauj tau dav siv hauv qab 80 degree C, sodium hydroxide tov nyob rau hauv 30 feem pua concentration, thiab ntau lub tuam txhab petrochemical tseem siv cov hlau zoo tib yam ntawm 100 degree C thiab 75 feem pua. Kev sib deev zoo. Kev tiv thaiv corrosion ntawm cov hlau tsis zoo tib yam rau cov tshuaj alkali tsis muaj qhov pom tseeb zoo piv nrog cov cam khwb cia hlau. Tsuav yog ib qho me me ntawm cov hlau sib xyaw hauv nruab nrab, nws tsis pom zoo kom siv cov hlau tsis huv. Rau siab kub alkali, titanium thiab titanium alloy los yog siab alloy stainless hlau feem ntau yog siv.
