Papyrus Anastasi I [SEP] material used
Papyrus Anastasi I
Papyrus Anastasi I (officially designated papyrus British Museum 10247) is an ancient Egyptian papyrus containing a satirical text used for the training of scribes during the Ramesside Period (i.e. Nineteenth and Twentieth dynasties). One scribe, an army scribe, Hori, writes to his fellow scribe, Amenemope, in such a way as to ridicule the irresponsible and second-rate nature of Amenemope's work. The papyrus was originally purchased from Giovanni Anastasi in 1839.
Content and importance to modern scholarship.
The letter
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