My guess is that either your 70% wasn't made up properly and was a higher concentration or it's been so long since you've changed the solution that the water is fully saturated with the formalin salts. If it becomes a regular problem, you might consider reducing your first alcohol's concentration to 60% or even 50%. Good luck!
Drew On Mon, Aug 9, 2010 at 12:00, Adrienne Aperghis Kavanagh < aaperg...@uspath.com> wrote: > Hello Everyone, > > Has anyone ever seen a (salt?) precipitate in their alcohols following > formalin? While changing the processor this morning, I noticed a > precipitate in the 80% alcohol and 95% alcohol (NOT in the 70% alcohol). It > is white and grainy. The alcohols were otherwise unaffected. > > We are using a 10% NBF containing: > Formaldehyde > Water > Sodium Phosphate, monobasic > Sodium Phosphate, dibasic > Methanol > > And our alcohols are all reagent grade. > > Any help would be very much appreciated! Thank you in advance! > > > Adrienne Aperghis Kavanagh > US PATH > 30 W. Century Road > Suite 255 > Paramus NJ 07652 > > > _______________________________________________ > Histonet mailing list > Histonet@lists.utsouthwestern.edu > http://lists.utsouthwestern.edu/mailman/listinfo/histonet > _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet
