Hi Paul,

I decided to add the folder "radiochemistry" I never suspected so much feedbacks for this OT comment hi

Thanks for sharing your gardeb experiences and the link: will add to the "to read" list but it is very appealing ;-) just seen the very first pictures :-)

About the reaction between Al and NaOH I remember some years ago a guy here in the company who wanted to degrease Al stamped parts, and I suggested him a soda bath.

Unfortunately he used concentated solution just to be sure to have very clean parts.

He plunged the parts in the bath and then because it was lunch time had his break. After a couple of hours he asked me if I had take the parts ......

73, Marco