Author Topic: Reducing agent Dextrose dosage problem  (Read 89 times)

Offline Marco_1

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Reducing agent Dextrose dosage problem
« on: May 31, 2020, 08:34:49 PM »
I want to use dextrose as reducing agent i need 0.02gram (to get 20ppm colloid silver a liter) .
However, my scale can hardly weigh that.
How do you add this reducing agent if it is so difficult to weigh?

I was thinking to do that in liquid (as is also told with Karo) and then dripping but how much dextrose / water do I have to add to fill a 100ml bottle?
And how many drops do I have to drop to get that 0.02 gram.

Offline SaltyCornflakes

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Re: Reducing agent Dextrose dosage problem
« Reply #1 on: May 31, 2020, 09:49:13 PM »
Look at it from the other way around:

At this dosage, it does not matter if you use 0,02g or 0,1g. The amount used will be minimal and a decade's supply can be had for pennies. Use a little more and don't weigh it. Reducing agent does not have to be exact.

But I will say that for making colloids, a jeweler's scale will come in handy sooner or later.

Offline wgpeters

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Re: Reducing agent Dextrose dosage problem
« Reply #2 on: May 31, 2020, 10:10:09 PM »
The best thing for you to do is add 1/4 tsp.  It will not harm the colloid.  It will reduce faster.  There is no danger then of not having enough.  The things most important to measure correctly are time, current, and electrolyte.  Reducing agent is best to have in excess. 
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Offline Marco_1

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Re: Reducing agent Dextrose dosage problem
« Reply #3 on: June 01, 2020, 12:00:50 AM »
Thanks for the answers to my question, I can continue with this.