Author Topic: Results from 1st batch of colloidal gold  (Read 1701 times)

BrettB

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Results from 1st batch of colloidal gold
« on: March 06, 2018, 09:39:55 PM »

It looks like my first batch of chemical reduced colloidal gold was a success using the following procedure:

500 ml cold distilled water
2.5 ml 1% gold chloride solution  (gives 50 ppm)
1 teaspoon maltodextrin.
10 drops 1 Molar sodium carbonate.
Stir, then heat to boiling in the microwave.

After that, I capped it with 20 ml gelatin solution. It's such a deep Ruby red that I had a hard time getting a decent picture but there it is. :D

Offline cfnisbet

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Re: Results from 1st batch of colloidal gold
« Reply #1 on: March 07, 2018, 09:48:12 PM »
Nice!

Offline Neofizz

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Re: Results from 1st batch of colloidal gold
« Reply #2 on: March 08, 2018, 02:06:57 AM »
Looks like you nailed the first time. Gratz!  :)
"Be kinder than necessary, for everyone you meet is fighting some kind of battle."

BrettB

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Re: Results from 1st batch of colloidal gold
« Reply #3 on: March 08, 2018, 02:36:41 PM »
Thank you kindly! I owe it all to cgcsforum. It doesn't get any easier than the above procedure as far as I can tell. However, for the sake of experimentation, I'm thinking of trying one of the electrolysis methods next. I have everything needed except for a gold anode.

Offline Burt

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Re: Results from 1st batch of colloidal gold
« Reply #4 on: November 04, 2018, 12:58:32 AM »
Hi BrettB,  were you successful with the old school method of electrolysis? 

I did the math and it is about half the cost to make it from basic ingredients, just takes a little more effort and equipment.  Personally, I like the challenge as well.