Re: Colloidal silver generator?

I read in sci.electronics.design that Mike Monett <no@xxxxxxxx> wrote (in <42594C06.4B41@xxxxxxxx>) about 'Colloidal silver generator?', on Sun, 10 Apr 2005:

There are very few OH(-) ions in distilled water.

Nevertheless, the vast majority of anions present in an aqueous solution containing a low concentration of Ag+ are OH-. 

 I don't know why silver nitrate is not as effective as  plain Ag(+),
 but it may have something to do with how strongly the silver nitrate
 dissociates in solution. Many substances dissociate completely, such
 as salt (NaCl). Other ions like to stick together, such as CO2.

Once again, your unique chemistry is exhibited. CO2 is a covalent compound and does not ionize in water. 

 The standard  method of preventing eye infection in newborns  was to
 put a  couple  of  drops of 1% silver nitrate  in  their  eyes. This
 turned them black, which made it easy for doctors to see  which ones
 had been treated and which ones were missed.

 The damage  caused by the silver nitrate prompted  health  groups to
 recommend alternative antibiotics, such as erythromycin:

   "Because of  the  significance   of  neonatal  conjunctivitis, all
   hospitals (most  required  by   State  law)  routinely  use silver
   nitrate or  antibiotic   drops,   such   as  erythromycin,  in the
   newborn's eyes  to  prevent disease. Silver nitrate  is  no longer
   commonly used  and  has  been mostly  replaced  by  antibiotic eye
   drops."

   http://www.shands.org/health/information/article/001606.htm

 If 10 ppm silver nitrate would do the job, they would use it instead
 of 1% and avoid the tissue damage problem.

But ordinary 10ppm ionic cs will easily kill eye infections.

That is simply impossible. It's the silver that causes the blackening, not the NO3-. IIRC, the 1% AgNO3 was effective against STDs. 

 > Similarly, a very dilute solution of silver citrate is unlikely to
 > undergo bacterial  degradation unless the original  water  had the
 > bacterial concentration of an African swamp.

 You are  really confusing different topics. First, it  is impossible
 to make good cs in anything less than the highest  quality distilled
 water. The  silver  ion is captured by the  anions  in  poor quality
 water and  is  not   available   biologically.  I  am  speaking from
 experience - I tried and it doesn't work.

I have never suggested otherwise about 'good cs', whatever that really is. I commented on bacterial attack on very dilute solutions. 

 Second, the bacteria was found growing in MSP (Mild  Silver Protein)
 products, not the silver citrate product.

OK, that no big deal. 

 Third, the  example of silver citrate was included to show  the very
 poor time/kill results:

   http://www.earthbornproducts.com/product.htm

 I included  these  products to show that silver  compounds  are much
 less effective than plain silver ions.

Again, this is simply nonsense. You CAN'T have Ag+ without the corresponding anions. There are no such thing as 'plain silver ions' without the anions. Except in silver vapour, of course. Think 2000+ degrees C.
--
Regards, John Woodgate, OOO - Own Opinions Only.
There are two sides to every question, except
'What is a Moebius strip?'
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk
.

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