Hauv cov nroog uas muaj cov pa luam yeeb ntau, huab cua muaj cov tshuaj sulfur dioxide thiab cov khoom siv (uas suav nrog 30% dej-insoluble residue, 33% combusted roj residue, 20% hlau oxide, thiab 8% dej-soluble sulfates. , thiab lwm yam). Thaum sulfur dioxide dissolves nyob rau hauv dej nag, nws ua acidic heev, ua rau khaus corrosion ntawm zinc txheej. Txawm hais tias cov txheej txheem tiv thaiv zinc oxide, zinc hydroxide, thiab zinc carbonate tau tsim nyob rau saum npoo ntawm zinc txheej, nws tuaj yeem hloov mus rau hauv cov zinc sulfate soluble hauv cov kua qaub acidic aqueous heev thiab raug ntxuav tawm, ua kom lub zog corrosion. Yog li ntawd, tus nqi corrosion ntawm zinc txheej yog yuav luag ncaj qha proportional rau cov sulfur dioxide cov ntsiab lus nyob rau hauv cov huab cua.
Cov khoom siv kuj tuaj yeem ua rau thaj tsam corrosion ntawm cov zinc txheej. Qee qhov ntawm cov khoom no yog hygroscopic, txhais tau tias lawv tuaj yeem nyiam thiab tuav cov dej noo, yaj cov tshuaj sulfur los tsim cov kua qaub, uas tom qab ntawd corrode zinc txheej ntawm cov chaw ntawd. Feem ntau, tus nqi corrosion ntawm zinc txheej hauv cov huab cua uas muaj leej faj yog kwv yees li 420 txog 770 milligrams ib square decimeter ib xyoos twg.
