Digital BW, The Print

Kind of sounds like eboni has a small net negative surface charge  and a
relatively large particle size. That would tend to keep the particles in
suspension when fairly concentrated and allow for a more rapid sedimentation
when relatively dilute. One sees the same phenomenon with red cells. The
matrix effect of the suspending liquid can influence the surface charge but
I am too many years away from this kind of chemistry to go much farther...

Roger



From: pr_roark <pr_roark@...>
Reply-To: DigitalBlackandWhiteThePrint
<DigitalBlackandWhiteThePrint@yahoogroups.com>
Date: Sun, 08 Feb 2009 16:15:05 -0000
To: DigitalBlackandWhiteThePrint
<DigitalBlackandWhiteThePrint@yahoogroups.com>
Subject: [Digital BW] Re: Diluting HP PK

 
 



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