h****u
发帖数: 2 | 1 LUDOX® AS-30 colloidal silica, 30 wt. % suspension in water
it is said it is stablized by ammonium counter ion. Does that mean it is
positively charged? Thanks |
b**s
发帖数: 589 | 2
If colloidal silica is positively charged, do you wanna add ammonium to
neutrilize it?
【在 h****u 的大作中提到】
: LUDOX® AS-30 colloidal silica, 30 wt. % suspension in water
: it is said it is stablized by ammonium counter ion. Does that mean it is
: positively charged? Thanks
|
c*s
发帖数: 2145 | 3
shuld be , y not run a zeta potential
【在 b**s 的大作中提到】
:
: If colloidal silica is positively charged, do you wanna add ammonium to
: neutrilize it?
|
b**s
发帖数: 589 | 4
Hydrogen ions from the surface of colloidal silica tend to dissociate in
aqueous solution, yielding a high negative charge.
http://www4.ncsu.edu/~hubbe/CSIL.htm
【在 c*s 的大作中提到】
:
: shuld be , y not run a zeta potential
|
c*******n
发帖数: 1648 | 5 Actually I guess that most of us couldn't understand your question. Got some
idea from a seminar given by air force people this afternoon. Now I think that
you were asking if ammonium counter ion is positively charged.
Air force people used a series of short peptides with side chain containing |
