Re: Sodium Carbonate (was Seeking Information on 2 problems with Gumprocess)
On Wed, 30 Apr 2008, Jeremy Moore wrote: Sodium bicarbonate is not a chemical replacement for sodium carbonate, but I have no idea what it will do in regards to cyanotype bleaching. Arm & Hammer does make a Washing Soda that is sodium carbonate. If you call the 1-800 on any of their boxes they can tell you the locations in your zip code who stock the Washing Soda. Actually, the 3 remaining supermarkets in my touristed-up neighborhood still carry "washing soda" in the laundry section and my husband buys it to actually put in the wash, on the theory that it's a booster for laundry soap. I haven't done a variables test. J.
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