Lub salinity ntawm seawater feem ntau yog li ntawm 1% mus rau 25%, feem ntau kwv yees li 3.5% rau kev suav. Cov dej hiav txwv muaj ntau cov pa oxygen, nitrogen, carbon dioxide, thiab lwm yam khoom, uas tuaj yeem ua kom cov zinc txheej txheej. Chloride ions (kwv yees li 55% ntawm tag nrho cov ion suav) cuam tshuam kev tsim cov yeeb yaj kiab tiv thaiv thiab txhim kho corrosion. Hauv qhov sib piv, magnesium thiab calcium ions tau nkag siab nrog zinc txheej los tsim cov ntsev insoluble, txhawb kev tsim cov yeeb yaj kiab tiv thaiv thiab maj mam txo tus nqi corrosion.
Cov khoom siv corrosion ntawm zinc txheej hauv dej hiav txwv muaj xws li carbonates, hydroxides, chlorides, thiab lwm yam. Feem ntau, tus nqi corrosion ntawm zinc txheej hauv dej hiav txwv yog nyob nruab nrab ntawm 50 thiab 650 milligrams ib square decimeter ib xyoos twg.
