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Colloidal Gold Production / Re: First batch Colloidal gold purple/brown turbid
« Last post by kephra on February 16, 2018, 06:09:31 PM »
The pH does not sound right.  The sodium in the sodium chloride transforms into sodium hydroxide as the chlorine is used up and the sodium reduces to sodium metal at the cathode, which then reacts with water to make sodium hydroxide.
This should raise the pH of the water.

Also the rule of thumb for gold is to minimize the anode and maximize the cathode (reverse of silver).

Water should almost be boiling.... bubbling on bottom of flask, but bubbles not breaking the surface.
2
Colloidal Gold Production / First batch Colloidal gold purple/brown turbid
« Last post by Burt on February 16, 2018, 05:30:30 PM »
Good day,

Firstly, thank you all who contribute your knowledge and expertise, it's good to learn of alternative therapies, while we are still allowed to use them.

I've been experimenting with the silver and gold colloid recipes.  Unfortunately for me I have turbidity issues with both, unrelated I assume at this time.

I'm hoping that if I can tackle the gold colloid first and if it improves my cognitive function significantly, I will be able to solve the silver colloid turbidity issue on my own :-)  Therefore, let's jump into my experiments with AuNP's:

Initially I'm trying to follow the "low voltage electrolysis colloidal gold method - salt and carbo-gain" (double batch first).

500 ml DW (appears to be good quality, I have an analysis report from the distillery, their process as described is reverse osmosis, distillation, microfiltration, ozonation)
240 mg sodium chloride (lab grade)
500 mg maltodextrin D-glucose polysaccharide 100% (food grade)

Lab glass cleaned with a homemade solution of bleach, sodium hydroxide, sodium bicarbonate, commercial dish detergent and water followed by rinse with tap water then rinse by distilled water and drip dried.

My procedure:

Using a 600 ml beaker fill with DW, drop in 50 mm stir bar, commence stirring at 200 RPM and heating.  Weigh out sodium chloride and add to beaker followed by maltodextrin.  Bring to low boil.  Install gold anode (20g gold bar 9999 fine, 18mm wide at a depth of ~11mm) and silver cathode 14 ga wire 9999 fine to a depth of ~37 mm, spaced 50 mm apart.  DC current limit preset to 300 ma and maintained.

Energize the cell
0 min: 46.9 volts, 300 ma
11 min: 52 volts, initial red hue observed, ambient lighting.
15 min: 54 volts, red deepening
39 min: 50 volts, red/purple when back or side lighting, turbidity is being observed and front lighting has a brown hue, continually replacing water losses.
51 min: de-energize cell, back & side lighting is red/purple and turbid, front lighting is brown.  If I used a mini Secchi Disk, it might be visible between 25 and 50 mm, very rough guess.

At nearly 24 hours, no significantly observed turbidity or color change, small gold particles are floating on the surface.

After reading - Topic: "First Batch Turned Purple" by handyguy, I repeated the experiment with a 250 ml batch size and double the amount of maltodextrin, 250 ma current limit setting, 25 mm stir bar at 120 RPM (to lower liquid turbulence) with the following results:

Energize cell:
0 min: 39 volts, 250 ma, replacing water losses.
6 min: 37 volts, initial red hue observed.
8 min: Brown turbidity observed under ambient lighting.
15 min: De-energized cell, not getting more red, instead more brown and turbid.

As of this writing, I was able to dig up some Hydrion papers 4.5 to 7.5 and tested both samples at between 4.5 & 5.0 pH.  DW lab analysis shows pH tested at 5.8.  Maybe pH is the path, is it the water? :-)  I think I will go down and boil some for a while.

In regards to turbidity pass/fail I see postings with pictures of back lit clear beautiful product, is it assumed that there is no observable turbidity or plasmon resonance when front or side lighted with a white led flashlight?  Seems to be subjective and not quantified, is an observable amount too much?

Please advise and thank you.

Burt



3
Colloidal Silver Production / Re: Silver anode size
« Last post by caneman on February 12, 2018, 11:30:17 AM »
I use a 5 ounce silver bar, cost me $90 a few years ago, have not regretted it!  Easy to clean, and gives me a wide range of current to use...
4
Colloidal Silver Production / Re: Possible 40ppm cold
« Last post by nano-silver on February 10, 2018, 09:08:25 PM »
I know it is an old topic but I don't quite get it with this colour change, must be missing something

40 ppm IS reduced -> 40 ppm colloidal silver then add saline -> instant colour change  (electro static repulsion destroyed, bigger particles -> change in colour)

20 ppm colloidal silver then add saline -> hardly any noticeable colour change

As I understand the 40 ppm colloidal silver there is very noticeable colour change, but with half concentration hardly colour change. Is that less agglomeration, I am thinking half concentration perhaps expect "half noticeable' colour change?

20 ppm IS add saline -> instant silver cloride coming out of solution, white fog in beaker or settle on bottom?  But whichever should that not be readily noticeable.

5
Colloidal Silver Production / Re: WebMD colloidal silver
« Last post by kephra on February 09, 2018, 09:32:42 AM »
I think also that WebMd does not know the difference between ionic and metallic.  This is a big source of confusion when people talk about 'colloidal silver'. 
6
Colloidal Silver Production / Re: WebMD colloidal silver
« Last post by Josie29 on February 08, 2018, 11:42:56 PM »
WebMD is a 'sell-out' much like the Pharmaceutical industry and the FDA.

Go to the WebMD site and check out the reviews. The Vast majority of the 178 reviews on the website - from presumably everyday, normal people - are 5 of 5 stars for each category of Effectiveness, Ease of Use, and Satisfaction. Read some of the comments left by some of the reviewers ... in total opposition to what WebMD has written on their site about the efficacy of colloidal silver.
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Colloidal Silver Production / Re: distilled water quality-ppm reading
« Last post by alex79 on February 07, 2018, 12:10:23 PM »
alex79
From the picture it appears that the collecting vessel is made of plastic. I think that you would be better off with a container made of glass due to the possibility of chemicals leaching from the interaction of plastic and warm water from the distiller even if the manufacturers claim the vessel is BPA free.
cfnisbet
my distiller uses .625Kw/hr . It is always going to be cheaper to produce your own DW even if you bought in bulk quantities from your supplier who i am familiar with-- their postage costs with delivery firm APC are very high and me driving from London all the way to i think Manchester to collect is silly. By the way 1 liter costs me less than 11p to produce. That includes electricity ,depreciation of distiller and cost of metered water. That is cheaper than you buying the DW even in one of those IBC tanks which i think contains 1000liters.

yes, you are right about the plastic vessel, the picture is from the internet, my distiller has a glass vessel.
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Colloidal Silver Production / WebMD colloidal silver
« Last post by Aquariusbutafly on February 06, 2018, 06:05:49 PM »
WebMD has lots of misinformation on colloidal silver (I feel). There are many scholarly articles that support the efficacy of nano silver.

https://www.webmd.com/vitamins-supplements/ingredientmono-779-colloidal%20silver.aspx?activeingredientid=779
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Colloidal Silver Production / Re: 320 ppm larger than 250ml
« Last post by ali on February 06, 2018, 11:47:05 AM »
Currently cleaning electrodes every 30 minutes. Goal was to not have to "babysit" the electrodes.  Thank you and I apologize for not thinking of that myself.
10
Colloidal Silver Production / Re: 320 ppm larger than 250ml
« Last post by kephra on February 06, 2018, 10:56:55 AM »
Scale time, electrolyte, reducing agent water.
So for 1 Liter vs 250ml, 4 times longer, 4 times electrolyte, 4 times reducing agent. 
Same current.

But, because of the time involved, why not just make 4 250ml batches?  That way, if something goes wrong, less is lost.
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