pH indicating plates
Posted 11 March 2002 - 01:57 PM
Posted 18 April 2002 - 09:15 PM
Posted 26 May 2003 - 09:18 AM
as far as i know you can use nearly every pH-indicatorsubstance as long as its concentration is in a more or less non-toxic range, let's say 0,001.0,005%(w/v) as far as i know. The choice of indicator is then a function of your acid or base turnover.