Sodium Hydroxide or Caustic soda as you've said normally comes in a granualated form.
Once mixed with water and used for a job, and if you are connected to the sewer, it can be thrown down the sink or toilet........this is what they make drain cleaner out of !!!!!!!!!

Matter of fact, that is the cheapest and easiest way to purchase small amounts of it.....drain cleaner from the local Hardware store, pure Sodium Hydroxide.

Otherwise it can be poured on the ground and it will neutralize as it dries or simply water down over time.
It is not a poisionous chemical....but very nasty to skin tissue when hot and activated.

One last thing Denny.......we use a Molasses/water mix to the same effect for metal stripping.
Is this the same as Lye?

Last edited by doc bob; 07/22/2008 5:15 PM.

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