Clarification on beads, KL and SAP

jledou · 10-13-2009, 03:30 PM

I am not 100% on the chemistry but PG has a high solubility for water but does not actively absorb the moisture from the air. I believe the motive here is that when it forms into solution it acts as a common fluid i.e. it evaporates evenly. It may reach equilibrium around 70% RH for a 50/50 mixture but if it actively absorbed or there was desorption of the water as with the RH beads then PG would be left behind or become diluted changing the RH constantly. Someone hit me over the head but I am just trying to think this out logically without 100% of the chemistry.

10-13-2009, 03:30 PM	#1
jledou Have My Own Room Join Date: Oct 2008 First Name: Jay Location: Kansas Posts: 2,254 Trading: (27)	Re: Clarification on beads, KL and SAP I am not 100% on the chemistry but PG has a high solubility for water but does not actively absorb the moisture from the air. I believe the motive here is that when it forms into solution it acts as a common fluid i.e. it evaporates evenly. It may reach equilibrium around 70% RH for a 50/50 mixture but if it actively absorbed or there was desorption of the water as with the RH beads then PG would be left behind or become diluted changing the RH constantly. Someone hit me over the head but I am just trying to think this out logically without 100% of the chemistry.