Author Topic: Sodium Citrate for making Colloidal Silver  (Read 1422 times)

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Offline PeterXXL

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Sodium Citrate for making Colloidal Silver
« on: August 09, 2015, 03:09:01 PM »
Does anyone have any experience with using sodium citrate (tri-sodium citrate-dihydrate) for making colloidal silver?

As I understand it, it can be used both as electrolyte and as stabilizing agent, but probably not as a reducing agent.

My experience so far, is that it works well to add 1 ml 0.1 mol sodium citrate for 1 liter as electrolyte, but glucose (or similar) must be used as reducing agent. And adding additional citrate for stabilizing the nanoparticles only work for lower concentrations.

Offline kephra

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Re: Sodium Citrate for making Colloidal Silver
« Reply #1 on: August 09, 2015, 03:52:21 PM »
I have tried it in the past, and my experience is that it is not very useful.  The solubility of silver citrate is only 1 or 2 ppm better than silver oxide, and using sodium citrate as an electrolyte produces a lot of silver oxide anyways.  So there is no reason to use it.
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