sergio caetano
Member
Sodium carbonate as alkali in the composition and carbon dioxide released during stop bath with acetic acid.
I have used sodium metaborate instead of sodium carbonate. My stock of sodium metaborate has finished and due to difficulty to find it in the market I have used water as stop bath.
If I use sodium metabisulfite or sodium bisulfite ( 1% ph 4.6 ) may I avoid this phenomenon ? Bath with acetic acid has ph 2.9 .
Thanks a lot
I have used sodium metaborate instead of sodium carbonate. My stock of sodium metaborate has finished and due to difficulty to find it in the market I have used water as stop bath.
If I use sodium metabisulfite or sodium bisulfite ( 1% ph 4.6 ) may I avoid this phenomenon ? Bath with acetic acid has ph 2.9 .
Thanks a lot