On Sun, 26 Jan 2020 12:33:25 +0000, Chris Hogg wrote:

On Sun, 26 Jan 2020 03:52:27 -0800 (PST), harry
wrote:

On Sunday, 26 January 2020 11:45:56 UTC, Mike Halmarack wrote:
I'm planning to hang a balcony wide board for use as a table or plant
stand. I'd probably find it easiest to cut and shape the hangers from
aluminium. These would hang on the inside of the balcony's balustrade
which is made from galvanised iron or steel.
Would these dissimilar metals suffer any adverse reaction when in long
term contact with each other?
--

Mike

The activity series. The further they are apart, the faster any reaction.

https://en.wikipedia.org/wiki/Reacti... de_potentials

From school chemistry of sixty years ago: Kate Now Can Make All Zebras
File Slowly Past Her Clucking Hens After All

Potassium, Sodium (Na), Calcium, Magnesium, Aluminium, Zinc, Iron
(Fe), Tin (Sn), Lead (Pb), Hydrogen, Copper (Cu), Mercury (Hg), Silver
(Ag), gold (Au).

The earlier ones in the sequence dissolve before the later ones.

It's extraordinary how these meaningless phrases stick in the mind,
even after all this time.

See also
https://en.wikipedia.org/wiki/Galvan...alvanic_series

Education is a wonderful thing.
--

Mike