wheelman@nac.net wrote:
> Now aluminum does react with bases and sodium hydroxide in particular will
> actively eat away at aluminum and not touch steel.
That's probably why ammonia is recommended.
> I know that not many
> people have sodium hydroxide just laying around the house but you may have
> something very close to it.
Many toilet bowl cleaners and drain openers are sodium hydroxide based -- read the label to be sure.
--
John (john@os2.dhs.org)
Appleton WI USA