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31
Colloidal Silver Production / Re: Colloidal Silver : Is this color usual ?
« Last post by Gene on April 08, 2024, 10:00:28 PM »
Um? You put a voltmeter across the anode and cathode of the cell while its running and read the voltage (wink).

To measure current you have to insert the meter probes in series with the cell which means lifting the anode wire off and installing the meter between the limiter and the anode (which if you have a limiter you really don't have to do other than at the beginning of the run to make sure you're getting the current you expect to).

The only variable you can change to change the cell voltage given a fixed current is the depth the cathode is submerged.  Submerged farther would lower the cell resistance which would cause the cell voltage to drop and conversely, submerging it less would raise the cell resistance which at a fixed current would cause the cell voltage to rise. Yeah, its this simple.
32
Colloidal Silver Production / Re: Help!!!!!!
« Last post by Gene on April 08, 2024, 09:30:09 PM »
To elaborate on this a bit more.  There really isn't ANY power supply unit you can buy where the constant current circuit operates well at very low milliamps because these limiter circuits are in there for protection most times - you're debugging something thats NOT working and you want to limit the current to something safe so you don't fry the thing while you poke at it. That is usually the main reason for the constant current circuit in a power supply to exist.

Our needs are much more precision and at a rather low current (1- maybe 20ma tops - unless you're making swimming pools full of Colloidal Silver - wink).

You really can't buy anything in this current range but building an LM317 limiter is all of 2 or 3 parts depending on whether you want to go with one fixed, non-changeable current (LM317 and a resistor) or you want to make it adjustable (add a 25 turn trimmer potentiometer so now 3 parts).  It really is this simple and it works well and its VERY inexpensive too. Yeah, you have to build it but that shouldn't be too daunting a task hooking a couple parts together.
33
Colloidal Silver Production / Re: Musings on using premix vs. powdered gelatine for high strength Colloidal Silver
« Last post by Gene on April 08, 2024, 09:23:58 PM »
Unless you make a lot of gelcapped Colloidal Silver, there really isn't a good reason to make a premix. You just add the room temp distilled water to the jar, add the correct amount of powdered gelatine, let it sit floating on the surface until it all blooms (about 5 minutes).

You'll know because it'll puff up, get clearish gelatine color and some of it will start sinking towards the bottom.  Now just heat the cell to the 140-150F, wait a few minutes for the gelatine to almost completely dissolve and then give it a stir with something non-metallic (because metal utensils are COLD (room temp) and it would cause some gelatine to stick to it otherwise).

I just use a wooden or plastic chopstick or if you prefer a disposable plastic knife or something similar would work fine.

Add electrolyte, reducer, electrode assembly and proceed as normal.

Doing it this way adds maybe not even 10 minutes elapsed time to the setup.

Just saying. Do whatever makes the most sense to you.
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Colloidal Silver Production / Re: Musings on using premix vs. powdered gelatine for high strength Colloidal Silver
« Last post by aquataur on April 08, 2024, 02:52:14 PM »
I found a site that sells gelatin, 250 bloom. I had never heared of such. Admitted, I have never thought about gelatine. And most of you here probably never thought about this too.
Anyway, its an indicator of how gelatin gels. It might be an approach to standardize the variations household products have and help to reduce the uncertainty when adding gelatin for capping.

Gelatin Bloom Strength Types and Uses (This explains the term)
Gelatin Usage Chart (Identifies several types)
What does Bloom mean in relation to gelatine? (This explains how to modify the dosage across different types)

Knox is a silver gelatin and has a bloom factor of 170, which is average.
edit: this site states that
Quote
Knox gelatin, for example, has a bloom of 225, while Dr. Oetker gelatin has a bloom of 250
Well... ::)
Know thy gelatin.
35
Colloidal Gold Production / Re: Question on Gold Electrolysis III Method
« Last post by kephra on April 08, 2024, 02:20:04 PM »
Yes, you need heat and stirring for gold electrolysis.
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Colloidal Silver Production / Re: Help!!!!!!
« Last post by Pemf silver on April 08, 2024, 01:21:36 PM »
That will not work , need the LM317 Circuit
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Colloidal Gold Production / Question on Gold Electrolysis III Method
« Last post by aquataur on April 08, 2024, 12:57:59 PM »
I just noticed that Methods I and II explicitly ask for "constant stirring and heat", whereas Method III does not.
Does this mean that this method does not need this? I made several searches but did not find the answer for that.
Thanks.
38
Colloidal Silver Production / Help!!!!!!
« Last post by The-Silver-Secret on April 08, 2024, 06:13:42 AM »
Will a Zk-4kx step down work for the generator or do I need the lm317?  Plleease help!!!
39
Colloidal Silver Production / Re: Colloidal Silver : Is this color usual ?
« Last post by The-Silver-Secret on April 08, 2024, 05:56:16 AM »
How do you know the voltage is going up after a time?
40
Colloidal Silver Production / Interesting Phenomenon: Colloidal Silver contacts semi-precious gem and changes colour
« Last post by aquataur on April 07, 2024, 08:00:07 PM »
I gave a bottle of my now perfect 20 ppm colloidal silver to a friend. She poured the liquid into a small glass, and her cat was very much interested in it and licked out of it. That was considered not normal.
She is very cat-o-phil and thought her cat needs some to she puts a little into the cat´s water bowl, where she keeps a shungite (semi precious stone), for reasons I did not question.

The next day it was firery red. Shungites are said to radiate something, rumour has it that the Russians have their underground bases´s walls tiled with shungite to screen something or other. I did not question the kind of "red".

Interesting in any event.
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