Bennosäule [SEP] material used
Bennosäule
Bennosäule is a stone pillar and bronze statue located in Maxvorstadt, Munich, Bavaria, Germany. It was created by German Bestelmeyer and George Albert Hofer, cast by Ferdinand von Miller, and erected in 1910.
The base is high and is made of red porphyry. On the base is a high bronze figure of Benno in full regalia.
to cathodically protect metals that are exposed to sea water. A zinc disc attached to a ship's iron rudder will slowly corrode while the rudder stays intact. Similarly, a zinc plug attached to a propeller or the metal protective guard for the keel of the ship provides temporary protection.
With a standard electrode potential (SEP) of −0.76 volts, zinc is used as an anode material for batteries. (More reactive lithium (SEP −3.04 V) is used for anodes in lithium batteries ). Powdered zinc is used in