Hi,
If you are worried about the perfume, then you can bake baking soda in the oven to get washing soda. Its the Super Washing Soda that I got while I was in the states....maybe that's what the difference was.
Or...forget washing soda and just add baking soda. The effect will be the same (i.e. it will add alk), but the pH will temporarily drift low for a couple of hours (about 0.1 to 0.2...depending how much buffer you added).
- Victor.
|