Finally just ordered some crystalline alum (2lbs!).
Great discussion guys, keep up the experiments!!
I may try treating some aluminum with borax to see if I can eliminate corrosion that way.
Happy experimenting all,
PC

I put together six more vitamin C cells last night and added vineagar to them .I did not have an eyedropper to measure out 2 or three drops each.So I ended up putting a capful in each cell.I punched a hole in one cell with a copper electrode so it started leaking vineagar.So I ended up with a mess that I put in another room and closed the door on to keep the smell confined to one room.I did stick each electrode into petro jelly to see if it would protect the metals.I recall that two of the cells were bubbling a little so maybe not enough petro jelly on it or some came off?I did not get a voltage reading.I had so much liquid I was disgusted with the whole thing.




I got ahold of a new AA battery from the store and measured 1.6 volts and for the amps(my meter only measures up to 200 ma) and would get OL(overload).The number that popped up before the OL came on was around 1984 mas.So we have a long ways to go here.

In the asprinin cells the magnesium corrodes to a white color.triffid

I just checked my vinegar/vitamin C cells and got my highest reading of 1.67 volts off of one cell.Thats the highest reading yet.I managed to read lower voltages off of 3 other cells.But the electrode moved on one other cell so its still pretty wet.In one cell the copper and magnesium eletrodes had touched and the magnesium was corroded a brown color once again.On two cells I ended up reinserting the eletrodes.Will look at it again tomorrow.My theory is that the vinegar will have enough water evaporated out of it in two weeks so I can finish building these cells




I still have two LEDS burning since last night off of two different panels.

I know this is off topic but you might be interested to see it.





For a five dollar donation you can help man start mining the moon for water by the year2020.Bill Stone is the man  to do this.
http://www.rockethub.com/projects/3822-shackleton-energy-company-propellant-depots
triffid