MAGNESIUM ANODE

 

GENERAL

 

Magnesium anodes are available in high potential alloy (nominal corrosion potential of -1.75V w.r.t. Cu/CuSO4 reference electrode) and low potential alloy (nominal corrosion potential of -1.55V w.r.t. Cu/CuSO4 reference electrode).

 

Magnesium anodes are extensively used when high driving potential is desirable, e.g. soils, fresh water, and brackish water. The corrosion products produced by magnesium alloys are non-toxic and therefore suitable for use in potable water.

 

PRE-PACKAGED MAGNESIUM ANODES

 

 

 

 

 

 

 

 

 

 

 

Magnesium anode is casted from high-purity magnesium and installed in a backfill of 75 % gypsum, 20 % Bentonite and 5 % sodium sulfate. This type of anode produces an open circuit potential of 1.65 - 1.70 volts, which is 20 - 30 % greater than conventional magnesium anodes. This high driving voltage means greater protection can be delivered from fewer anodes.

 

Pre-packaged magnesium anodes are available in the following weight:

-          2.3kg

-          4.1kg

-          7.7kg

-          14.5kg

 

All anodes come in permeable cotton bag with backfill and with standard 10mm² XLPE/PVC tail cable.

 

CHEMICAL COMPOSITION

 

 

 

Standard chemical composition. Other compositions are also available upon request.

 

            Electrochemical Capacity      : 1100 to 1230 Amp.hr/Kg (ambient temperature)

            Closed Circuit Potential         : -1.65V to -1.75V w.r.t Cu/CuSO₄ Reference Electrode

            Anode Efficiency                    : 50% to 85%

 

BACKFILL COMPOSITION

 

 

ORDERING INFORMATION

 

Specify the following details upon ordering:

 

1.      Anode weight

2.      Anode quantity