From: Andre Fuhrmann (Andre.Fuhrmann@uni-konstanz.de)
Date: 02/03/00-03:37:19 AM Z
>if you mixed it from dry gum (as many do to adjust the viscosity) you
>would have to add a preservative -- thymol, glyoxal, formaldehyde -- ...
So you could use glyoxal as a preservative?! I have a bottle of glyoxal
sitting on my shelf, waiting to be good for something. How much would you
add, say, to 100ml of a solution of 1:2 (water : gum)? Could you also use
glyoxal as a preservative for vandyke or cyanotype sensitizer to prevent
fungus growth? Would that effect the sensitizer badly?
Andre
This archive was generated by hypermail 2b29 : 04/24/00-04:37:08 PM Z CST