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Posted by David Sherman [216.18.131.232] on Tuesday, November 10, 2009 at 20:27:08 :
In Reply to: Re: Looking for Arm & Hammer washing soda posted by Dave Royal [75.81.205.43] on Tuesday, November 10, 2009 at 18:38:01 :
Borax is completely different. Washing soda is sodium carbonate, and borax is sodium tetraborate. I would have to ask my chemist friend, but I'm pretty sure borax is a very weak alkali, if it's alkaline at all. The proof would be in trying it, though. I would try it on something I didn't care about first, because if it's not alkaline enough, the process may end up eating the work piece.