In a recent post I mentioned some other sources for chemicals and
chemical analysis for electrolysis rust removal--in the event that
others, like myself, had a hard time finding "washing soda".
The other day I bought a 2 lb canister of 100% sodium carbonate for $3
and change at Lowes. Look in the pool section (the one I checked had
it in the covered outdoor section) for Spa-Kem pH Plus.
I have no idea what your point is. If you mean that the Na2CO-3 is the
same in both, it isn't. Arm & Hammer washing soda contains other
ingredients. It's got one of the highest concentrations of Na2CO-3,
which makes it ideal for electrolysis, but it's also got
detergents--which may or may not be helpful in electrolysis. They
probably don't affect it much either way since many have used it
But the pool additive is pure Na2CO-3, and it's cheap, AND (the point
of my post) it is more readily available.
Availability, Han, that's the issue I was trying to cover.
See my earlier post at:
Also, I just ran across a site detailing how to make (fairly pure)
Na2CO-3 from Baking Soda (Sodium *Bi*carbonate) at:
firstname.lastname@example.org (Hylourgos) wrote in
I'm sorry, if I irked you. My only point was that Na2CO-3 is Na2CO-3,
whatever you call it. Whether or not the detergents in A&H would help, I
can't tell for sure. My guess is that they would help a little, but I
have no experience whatsoever trying any of this myself.
Not at all--your short post was just enigmatic, and I didn't
understand what you were getting at.
I, and many others, have done electryolysis with plain old Arm&Hammer
Sodium BI-Carbonate, and it seems to work OK. From what I've read and
from what little experience I've had (haven't actually tested them
side-by-side) though, Sodium Carbonate is more effective, the purer
the better. So...I'd always been in search of a cheap and easy source.
When I found it, I wanted to share it.
But I completely understand if someone has tried regular Baking Soda,
it worked for them and they have no desire to try anything else to see
if it works better.
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