Lub salinity ntawm seawater feem ntau yog li ntawm 1% mus rau 25%, nrog rau 3.5% feem ntau siv rau kev suav. Cov dej hiav txwv muaj ntau cov pa oxygen, nitrogen, carbon dioxide, thiab lwm yam khoom uas ua rau cov txheej txheem zinc. 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, thaum magnesium thiab calcium ions 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 uas tshwm sim los ntawm corrosion ntawm zinc txheej hauv dej hiav txwv muaj xws li carbonates, hydroxides, chlorides, thiab lwm yam. Tus nqi corrosion ntawm zinc txheej hauv dej hiav txwv feem ntau yog li ntawm 50 txog 650 milligrams ib square decimeter ib xyoos twg.
