Suppose I'm somewhere where stores don't seem to stock baking soda or baking powder. Are there other names either of those might be sold under? Or are there things I could substitute?

Related:

* [How to make baking soda][2] (but apparently you can't really do it)
* [Substitution for baking soda][1] (but mostly just suggests baking powder)
* [Making baking powder substitute with baking soda and powdered citric acid][3] (but then you need baking soda)


  [1]: http://cooking.stackexchange.com/questions/7821/substitution-for-baking-soda?lq=1
  [2]: http://cooking.stackexchange.com/q/54670/1672
  [3]: http://cooking.stackexchange.com/q/46904/1672