Magnesium Soil Anode by NCL---ready made "Earth Battery"???
@All
I found this product that is made for corrosion protection on things like tanks and pipes burried in the ground. It is called a "soil anode" and there are a number of companies who make them. Norton Corrosion Limited (NCL) sells a small 1 lb. anode for $14. What caught my attention was that the magnesium anode is in a cloth bag filled with 75% hydrated gypsum,20% bentonite, and 5% sodium sulphate. Those chemicals are in there to increase the output of the anode. The bagged anode and "backfill" has a 10 ft. wire already attached to it and you would simply bury the bag in the ground next to the cathode (copper, graphite, or whatever). The output is 1.50 to 1.75 volts. The specs rate this device at 500-580Amp/Hrs. per lb.
Here is the link to the product:
Norton Corrosion: Prepackaged Magnesium Soil Anodes - 1 lb with 10' or #12 AWG RHW-2 solid wire
The company is based near Seattle Washington and the shipping cost (shipping weight is 10 lbs.) is $8 to Sounthern California.
I didn't order one yet but this seems like a very simply way to make an "Earth Battery". If we opened up the bag and mixed the chemicals with cement then it might make an interesting crystal type cell using copper or graphite as the cathode. Maybe just put the bag in a plastic bucket of beach sand with a piece of copper pipe and see what happens. With 500 Amp/Hrs. you can run an LED oscillator a long long time.
@Chuck H.
My semiconductor copper cell has a problem with a black deposit forming on the marine zinc and stopping the galvanic action. I have tried several different electrolytes and insulators but the result is always the same. Some element in the marine zinc alloy breaks down and forms that insulating layer. I may try magnesium and see what happens.
@All
I found this product that is made for corrosion protection on things like tanks and pipes burried in the ground. It is called a "soil anode" and there are a number of companies who make them. Norton Corrosion Limited (NCL) sells a small 1 lb. anode for $14. What caught my attention was that the magnesium anode is in a cloth bag filled with 75% hydrated gypsum,20% bentonite, and 5% sodium sulphate. Those chemicals are in there to increase the output of the anode. The bagged anode and "backfill" has a 10 ft. wire already attached to it and you would simply bury the bag in the ground next to the cathode (copper, graphite, or whatever). The output is 1.50 to 1.75 volts. The specs rate this device at 500-580Amp/Hrs. per lb.
Here is the link to the product:
Norton Corrosion: Prepackaged Magnesium Soil Anodes - 1 lb with 10' or #12 AWG RHW-2 solid wire
The company is based near Seattle Washington and the shipping cost (shipping weight is 10 lbs.) is $8 to Sounthern California.
I didn't order one yet but this seems like a very simply way to make an "Earth Battery". If we opened up the bag and mixed the chemicals with cement then it might make an interesting crystal type cell using copper or graphite as the cathode. Maybe just put the bag in a plastic bucket of beach sand with a piece of copper pipe and see what happens. With 500 Amp/Hrs. you can run an LED oscillator a long long time.
@Chuck H.
My semiconductor copper cell has a problem with a black deposit forming on the marine zinc and stopping the galvanic action. I have tried several different electrolytes and insulators but the result is always the same. Some element in the marine zinc alloy breaks down and forms that insulating layer. I may try magnesium and see what happens.
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