Salud!
any instant coffee will do the trick, I used store brands (as long as it is 100% coffee)
Arm&Hammer is sodium carbonate, in the Netherlands is DrieHoek Soda, in Germany is also sold in any supermarket as soda. There should be some in Romania (it seems to be a large exporter). DO NOT confuse it with Caustic Soda thouhg (NaOH)
Another alternative brand is pH+ in pool-supplies section of hardsware stores which is mostly carbonate.
In the worst case get some bicarbonate in the pharmacy/supermarket, put it in a pan/pyrex in an overn at ~150 C for a couple of hours and you should have converted the bicarbonate into carbonate.
PLEASE read the followng website, Donald is a great guy and he did a lot of work in 2004-2005, testing, refining and documenting.
http://silent1.home.netcom.com/Photography/Dilutions%20and%20Times.html Originally posted by ftpaddict Just spotted a bit of a problem:
No Arm&Hammer or Folger's Coffee Crystals available here!
Can anyone suggest any alternatives?
Last edited by titrisol; 08-06-2008 at 02:11 AM.