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1
Colloidal Silver Production / Re: Requesting help.
« Last post by wkp80 on Yesterday at 11:03:58 AM »
Thanks for your help on this issue
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Colloidal Silver Production / Re: Requesting help.
« Last post by wgpeters on January 17, 2019, 09:42:30 PM »
Hi all can anyone point me in the right direction where i can find the diagram for making a constant current regulator that is on this site. I have made one of these before and used it for several years with success. I now want to make one for my friend. Also i can't get onto the store site it is saying forbidden. I have also purchased a silvertron  last year and want another one for a family member.Any help will be appreciated.
Email kephra at ptd dot net.
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Colloidal Silver Production / Re: Requesting help.
« Last post by Dean on January 17, 2019, 09:28:29 PM »
cfnisbet

I have passed links and info to wkp80 via the facebook page. Have explained the situation. re country restrictions.
Hopefully Kephra will pick up and provide up to date position on accessibility.

(I just posted in experts as well regarding this but as it's now picked up here, please ignore that post.)

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Colloidal Silver Production / Re: Requesting help.
« Last post by cfnisbet on January 17, 2019, 07:40:49 PM »
Hi all can anyone point me in the right direction where i can find the diagram for making a constant current regulator that is on this site. I have made one of these before and used it for several years with success. I now want to make one for my friend. Also i can't get onto the store site it is saying forbidden. I have also purchased a silvertron  last year and want another one for a family member.Any help will be appreciated.
We don't post circuit diagrams any more. I suggest you PM Kephra if you can't get into the SilverTron store. Otherwise, it would have to be a Bench PSU from eBay or Amazon.
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Colloidal Silver Production / Re: Requesting help.
« Last post by wkp80 on January 17, 2019, 07:10:11 PM »
Hi all can anyone point me in the right direction where i can find the diagram for making a constant current regulator that is on this site. I have made one of these before and used it for several years with success. I now want to make one for my friend. Also i can't get onto the store site it is saying forbidden. I have also purchased a silvertron  last year and want another one for a family member.Any help will be appreciated.
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Colloidal Silver Production / Re: turning Colloidal to early
« Last post by wgpeters on January 15, 2019, 08:17:25 PM »
Quote
(1) Faster reduction is generally better to keep agglomeration lower,
I have not found that to be true, at least for glucose based reducing agents, which is why I make my 20 ppm at room temp, and then add corn syrup and let the reduction take place at room temperature.

Quote
(2) Most reduction agents work faster in their optimum temperature range
I agree with that; sodium citrate and hydrogen are  good examplesof an agent which works better hot.

I also think that adding the reducing agent after electrolysis is better because glucose based reducing agents might ionize in solution* so in effect, the glucose is also being electrolyzed.  But this seems to be a minor effect.  Of course, for high ppm, it is necessary to have the reducing agent in the solution during electrolysis.

* Whether glucose actually ionizes is a contested matter.  Some say it does, others say it does not. 
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Colloidal Silver Production / Re: turning Colloidal to early
« Last post by FlyingDutchman on January 15, 2019, 07:35:08 PM »
No, for 20 ppm there are more ways.
Electrolyze at room temperature (70F), then  add reducing agent and wait (may take an hour to complete)
Electrolyze at room temperature then add reducing agent and heat
Electrolyze at room temperature with reducing agent from start
Electrolyze hot then add reducing agent.
Electrolyze hot with reducing agent .
This is possible because the ionic silver does not exceed its solubility.

For higher ppms though, the choices are more limited.
Reduction must be faster than generation so solubility is not exceeded.

Yes, of course you are right that all these options are viable, but from a quality (mainly particle size) point of view I had understood the following to be true: (1) Faster reduction is generally better to keep agglomeration lower, (2) Most reduction agents work faster in their optimum temperature range. So, what would be the benefit, for instance, of electrodissolution in heated conditions (other than increasing the saturation threshold a little bit), and then reducing with an agent to speed up the process? It just seems you would lose control of the parameters?
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Colloidal Silver Production / Re: Why is my water cloudy?
« Last post by FlyingDutchman on January 15, 2019, 07:24:28 PM »
When reading scientific papers I always note that the lab assistants are very peculiar about the way they add reagents, drop by drop with second intervals, for example. I have been curious as to how critical this is? Anyway, to avoid problems with different dissolution times, I always prepare the reagents, by dissolving in bi-distilled water, in the case of gelatin, plant extracts, etc., I even heat it up. Is that being overzealous, or is there some sense in that?
Highly unlikely to make the slightest difference.

I suspect that those technicians have been told that processes should be as similar as possible, and that some technicians are marginally autistic. This is a recipe for semi OCD behaviour. It is important to use the same broad process each time, but one can go too far.

Ha, ha, I thought along those lines, but don't tell 'em that!
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Colloidal Silver Production / Re: Why is my water cloudy?
« Last post by cfnisbet on January 15, 2019, 05:00:58 PM »
When reading scientific papers I always note that the lab assistants are very peculiar about the way they add reagents, drop by drop with second intervals, for example. I have been curious as to how critical this is? Anyway, to avoid problems with different dissolution times, I always prepare the reagents, by dissolving in bi-distilled water, in the case of gelatin, plant extracts, etc., I even heat it up. Is that being overzealous, or is there some sense in that?
Highly unlikely to make the slightest difference.

I suspect that those technicians have been told that processes should be as similar as possible, and that some technicians are marginally autistic. This is a recipe for semi OCD behaviour. It is important to use the same broad process each time, but one can go too far.
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Colloidal Silver Production / Re: turning Colloidal to early
« Last post by wgpeters on January 15, 2019, 02:00:46 PM »
No, for 20 ppm there are more ways.
Electrolyze at room temperature (70F), then  add reducing agent and wait (may take an hour to complete)
Electrolyze at room temperature then add reducing agent and heat
Electrolyze at room temperature with reducing agent from start
Electrolyze hot then add reducing agent.
Electrolyze hot with reducing agent .
This is possible because the ionic silver does not exceed its solubility.

For higher ppms though, the choices are more limited.
Reduction must be faster than generation so solubility is not exceeded.



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