YUXI‘s’ packaged zinc anode is mainly composed of a cast zinc anode centrally packed in a permeable cotton bag or
cardboard tube with highly hygroscopic backfill mixture. This type of zinc anodes are recommended for use in soils
with resistivities below 1000 ohm-cm. Because zinc anodes have a lower driving potential than magnesium, our pre-packaged zinc anodes are the most effective method of mitigating corrosion on well coated metallic structures requiring minimal current output.
They are popularly used as grounding cells on electrical equipment (such as power stations, transmission line towers, etc.) and across insulators on pipelines to limit high voltages.
CHEMICAL COMPOSITION
Our zinc anodes are made from 99.99% pure special high grade zinc alloy, which strictly conforms to ASTM - B418
Type II stardard.
|
Element |
Content (%) |
|
Aluminum (Al) |
0.005 max. |
|
Lead (Pb) |
0.003 max. |
|
Iron (Fe) |
0.0014 max. |
|
Copper (Cu) |
0.002 max. |
|
Cadmium (Cd) |
0.003 max. |
|
Other Impurities |
0.100 max. |
|
Zinc (Zn) |
Remainder |
ELECTROCHEMICAL PROPERTIES
|
Technical Measurement |
Performance |
| Open Circuit Voltage (min.) |
-1.10 Volts |
|
Closed Circuit Voltage (min.) |
-1.05 Volts |
|
Current Capacity |
740 A.h/kg(335 A.h/lbs) |
|
Current Efficiency (min.) |
90% |
|
Consumption Rate |
11.9 kg/A.y(26.2 lbs/A.y) |
* The open/closed circuit voltage is with respect to a copper sulfate reference electrode.
