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Ian Jackson[_9_]

In message ,
writes
On Wednesday, 30 October 2019 02:44:07 UTC, Jake wrote:
I poured caustic soda down my shower hole and it has harderned any leads ?
Im panicking

water dissolves it. Vinegar dissolves it faster, but beware of splash
from caustic, a chemical that can blind you.

Some brands of caustic soda 'harden'. With others, there's a rapid,
heat-producing reaction with the water, and dissolve totally without a
trace. Why is this? Have the former been 'cut' - ie something has added
to bulk it out (such as washing soda)?
--
Ian