Register a free account today to become a member! Once signed in, you'll be able to participate on this site by adding your own topics and posts, as well as connect with other members through your own private inbox!
Sacrificial Protection, one metal more reactive than the other,thus supplying ions to protect the least active metal. Used in North sea oil pipelines by bolting on lumps of more active ie zinc to less active iron to protect pipes.
Used for years
from most reactive to least reactive in the electro-potential series
K, Na, Ca, Mg, Al, Zn, Fe, Sn, Pb, Cu, Hg, Ag, Au.