is it normal to have a precipitate at the bottom when approching 8.5ph? I use the "better titration" approach.
What sort of precipitate? And how many ml of 0.1% NaOH solution had you added by then? How are you measuring the pH?
Best Keith _______________________________________________ Biofuel mailing list [EMAIL PROTECTED] http://wwia.org/mailman/listinfo.cgi/biofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuel archives at Infoarchive.net (searchable): http://infoarchive.net/sgroup/biofuel/
