Author Topic: Making Colloidal Gold with GC  (Read 5442 times)

Aureum

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Making Colloidal Gold with GC
« on: January 24, 2013, 08:48:59 PM »
When making colloidal gold using your recipe you say:

Quote
    7)  Reheat to boiling again.
      Allow to stand until color change to ruby red is complete.  If you have a stirrer, use it.  Expect 5 to 10 minutes for completion.


Should we cut the heat when it reaches boiling and let it cool while stiring for another 5, 10 or so minutes?

Being somewhat color blind I am not sure when "change to ruby read is complete" but I can tell when it is getting darker.

Is it easy to boil it for too long?

Thanks

Aureum

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Re: Making Colloidal Gold with GC
« Reply #1 on: January 24, 2013, 09:21:23 PM »
OK

The one on the left I made a few days ago and continued boiling for 10 minutes or so.

The one on the right I just made less than an hour ago and cut the heat shorly after it started boiling but kept stiring for some time.

I beleive I mixed the ingredients the same (I hope so anyway) yet the first one is quite a bit darker. Could I be doing something wrong?

Offline kephra

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Re: Making Colloidal Gold with GC
« Reply #2 on: January 24, 2013, 09:26:38 PM »
The one on the left looks correct.  The one on the right looks weak, and/or it doesn't have enough reducing agent.

I suggest adding a few more drops of sodium carbonate and some more maltodextrin to see if it darkens.

I heat mine to the boiling point in the microwave and turn it off as soon as it starts boiling.  The reaction is always done by that time.
Colloidal Silver is only a bargain if you make it yourself.

Aureum

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Re: Making Colloidal Gold with GC
« Reply #3 on: January 24, 2013, 09:28:35 PM »
Should I heat it to boiling again also?

Offline kephra

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Re: Making Colloidal Gold with GC
« Reply #4 on: January 24, 2013, 09:47:08 PM »
Yes
Colloidal Silver is only a bargain if you make it yourself.

Aureum

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Re: Making Colloidal Gold with GC
« Reply #5 on: January 24, 2013, 09:59:04 PM »
Oops, I see you said that :-[


Doing too many things at once.

Thanks

Aureum

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Re: Making Colloidal Gold with GC
« Reply #6 on: January 24, 2013, 10:32:27 PM »
That seems to have done it. They are both about the same now. So, I guess that answers my first question. I should allow it to continue to boil until it darkens. Too much boiling does not seem to be a concern.

Thanks. :)

samiam

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Re: Making Colloidal Gold with GC
« Reply #7 on: February 21, 2013, 03:38:39 PM »
Are there any concerns in microwaving colloidal solutions filled with metalllic(silver/gold) particles?.. I've done it before but just started wondering if it does anything to those precious metal particles.. Probably non-issue for 'nano' particles but Just curious.. Thanks!

Offline kephra

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Re: Making Colloidal Gold with GC
« Reply #8 on: February 21, 2013, 05:35:14 PM »
There is no problem with using microwaves to heat your solutions.  The frequency of the microwaves is not resonant with nanoparticles.

Colloidal Silver is only a bargain if you make it yourself.

mrb123

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Re: Making Colloidal Gold with GC
« Reply #9 on: December 18, 2014, 04:21:00 AM »
I just made my first batch of colloidal gold using the gold chloride method. Nice dark ruby red; I followed the basic recipe.
Sorry but for some reason I am having trouble uploading a pic.

Offline kephra

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Re: Making Colloidal Gold with GC
« Reply #10 on: December 18, 2014, 03:33:35 PM »
Colloidal Silver is only a bargain if you make it yourself.

mrb123

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Re: Making Colloidal Gold with GC
« Reply #11 on: December 18, 2014, 05:17:09 PM »


This is the message I get:
Cannot connect to the website

Please make sure:

- You have entered the correct URL.
- You are connected to the Internet.
- Your firewall is properly configured.
- The website is not encountering any technical problem at the moment.

Error code 124 (net::ERR_WINSOCK_UNEXPECTED_WRITTEN_BYTES)

Offline kephra

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Re: Making Colloidal Gold with GC
« Reply #12 on: December 18, 2014, 06:45:06 PM »
Well you can obviously connect to this website, and i have never seen that error message before, so I suspect the error is outside the scope of the forum.
Colloidal Silver is only a bargain if you make it yourself.

mrb123

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Re: Making Colloidal Gold with GC
« Reply #13 on: December 18, 2014, 06:47:29 PM »
Perhaps it's my browser (Mozilla) I will try another one later. Thanks

Prince Angel

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Re: Making Colloidal Gold with GC
« Reply #14 on: December 18, 2014, 08:04:23 PM »
The one on the left looks correct.  The one on the right looks weak, and/or it doesn't have enough reducing agent.

I suggest adding a few more drops of sodium carbonate and some more maltodextrin to see if it darkens.

mine looks like the one on the right ("weak") and you stated to add "a few more drops of sodium carbonate".... I'm using the electrolysis method, would you still recomend using s carbonate and how much if making 500 ml batches? i use S. citrate, salt, and corn syrup, or do i have to add anymore of the 3 i just mentioned to make it darker?