Aluminium vs alkaline

Will alkaline cause AL to corrode. If so why do they keep selling part
washers and recommend alkaline cleaners, I know it's primarily because of
the soils to be removed be if there is a chance that it will cause corrosion
and most a/c part are made of it why take the chance. What would be a safe
ph level, since most are mixed with water and we know water will evaporate
in these heated part cleaners that do not recommend doing a ph check prior
to putting parts in them. Is there a list of what type of cleaner should be
used with what metal because I don't think the label safe for all metals
really is correct, there to many metals that react differently to different
chemicals for that to apply to all metals
Thanks
Reply to
tfagan
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