The density of zinc is 7.14g/cm3, the open circuit potential is -1.03V, and the current efficiency in the soil is greater than 65%△E=0.2V
It is usually used in water with a resistivity of less than 500ΩNaN. Zinc anodes can also be used in soils with soil resistivity less than 15 ω.m.
High purity zinc is usually used to make extruded strip anodes or as a fixed reference electrode for grounded batteries.
Zinc can also be made into a bracelet type anode, mainly used in underwater and submarine pipelines, one is made into a block and then welded on the steel bracket to form a circle, and the other is directly made into a semi-ring, directly connected to the pipeline.
Size: 25.4×28.5mm 15.8×22.2mm 12.7×14.2mm 8.7×11.9mm Phi 3.9mm
Zinc ground battery with zinc strip without filling
Special uses: zinc grounding electrode, reference electrode, grounding battery, anti-AC interference (" cathodic Protection Engineering Manual "78 page)
The density of aluminum is 2.7g/cm3, the open circuit potential is about -1.05V, the current efficiency is greater than 70%, and △E=0.25V
Usually applied in water with resistivity less than 150ΩNaN, aluminum anodes are not usually used in soil
