Author Topic: Requesting help.  (Read 22733 times)

Offline cosanostra

  • Participant
  • **
  • Posts: 50
  • Likes: -16
Re: Requesting help.
« Reply #180 on: April 29, 2020, 02:56:04 PM »
This is my first question on this forum and I am newbie so pardon if my question is silly.
I wanted to do 320ppm AgNP but since I am pure vegetarian I would not be able to use Gelatin for capping. The question is that can I use Agar Agar(vegetarian gelatin substitute) instead?
Agar-agar will not work, but Orange pectin is a strong vegan capping agent. The only drawback is the bitter taste.
I'm using apple pectin and it's good enough
β€œIt is my view that the vegetarian manner of living, by its purely physical effect on the human temperament, would most beneficially influence the lot of mankind.”
― Albert Einstein

Offline Patnuck

  • Participant
  • **
  • Posts: 7
  • Likes: 0
Re: Requesting help.
« Reply #181 on: July 18, 2020, 01:00:51 AM »
When trying to dilute 40 ppm colloidal silver using tap water 50/50 the resulting solution turned pinkish purple colour, tried again with filtered water from the fridge with same result. Finally diluted with steam distilled water with good results. Can someone please explain what could be the problem with the tap water. Thanks

Offline cfnisbet

  • Administrator
  • Participant
  • *****
  • Posts: 2011
  • Likes: 115
Re: Requesting help.
« Reply #182 on: July 18, 2020, 01:52:40 PM »
This colour change is due to the pH of the water, or (less likely) the minerals within it.

If your water is very acid, then it's going to damage the colloid. Likewise if there are any oxidisers in the water. Some types of tap or bottled water can be mixed without any issue; I saw a person try to turn Ionic Silver Oxide into silver chloride (a white cloud as the silver oxide reduces to silver chloride) under the effect of the chlorine in tap water, and he used bottled water. His demonstration failed, showing that all potable waters may be very different.

If you are unlucky enough to have very reactive tap water, then this can happen.

Offline Barra

  • Participant
  • **
  • Posts: 1
  • Likes: 0
Need Help Measuring and Optimizing mA and Volts Across Electrodes in adjustable Lab Power Supply Setup

Problem: I am having trouble measuring my volts/mA across my electrodes in my Lab power supply setup and was wondering if someone could help.

The goal: To run 5mA with a constant current (CC) from the PS and to adjust the voltage by adjusting the depth of the copper until I get between 10 to 15 volts. To be able to do this, I want to use my multimeter to check both voltage and mA and to adjust using my Lab PS dial and by adjusting my copper diode depth in relation to the silver.

My starting point: With a liter of water, and a 10 gauge silver anode, I am looking to achieve 5mA with 15 volts for 60 minutes to produce 20 PPM ionic silver. I start by maximizing the PS to 30 volts, insert my copper 1/2 inch, silver 1.5 inches for a 3x ratio, and keep the electrodes 1.5 inches apart. This was pulled from the forum, so please correct me if I am wrong.

I have:

Wired running multimeter in series:
+PS to MM V+ (to measure volts or A+ to measure mA), MM COM to silver + anode, copper diode- to PS-

  • Wiring Setup: Is this the correct wiring (series) to be able to measure and adjust voltage or mA?
    • Measuring Voltage: When setting the PS to 30v, I get 30v on the MM without any drop - what am I doing wrong? How do I see the actual voltage across the electrodes rather than PS generated voltage?
    • Measuring mA: When I switch the MM from V+ to A+ to try measuring amperage, I am getting no amps registered - what am I doing wrong?
    • Lab PS Setting: What should I be setting my PS to volts or to mA as it offers either or with only one showing at a time? Should this be set to 5mA constant current then just adjust the copper to achieve 10 to 15 volts across the electrodes?

    BTW, is there any way to post an image as it would be much easier to show my lab diagram?
« Last Edit: July 20, 2020, 08:20:36 PM by Barra »

Offline gkar

  • Participant
  • **
  • Posts: 46
  • Likes: 1
Re: Requesting help.
« Reply #184 on: July 21, 2020, 10:42:46 AM »
Welcome to the forum, you're at the right place to learn. I'll see if I can help, from one rookie, to another:

If you haven't already, have a good read on the 'Articles' Forum, as well cfnisbet's excellent threads on Colloidal Silver production:

The multimeter (MM) is connected properly, according to your description.

Does your power supply (PS) have a CC indicator light? If so, is it coming on?
The process is governed by the amperage, not the voltage. I just set my PS to maximum voltage -30VDC is fine, & the amperage to about 4-5mA {the voltage will be what it is}. Power supplies aren't designed to operate accurately at such low amperages, that's why you use a multimeter, connected in series. As long as the CC light remains constantly on, & the VDC doesn't drop below 10VDC, then you will be OK.

I leave my PS display set to maximum voltage (about 24VDC), & ignore the PS amperage rating, as mine is usually out by up to 1-2A. eg. my PS will show a 4mA rating, whereas the MM will indicate 530-570mAs. So it's always best to refer to the MM.

It is recommended to initially switch on the PS, for about 3 seconds, to gauge the mA, adjust if necessary, to attain about 5mA. Quickly retest, then do the calculation {your calculation is good}, & switch on for the Colloidal Silver production run. If you have 0mAs, then something is going on, that shouldn't.

Have you added the electrolyte? I forgot once, & had zero mA, as distilled water has virtually no impurities, it will struggle to generate a current.

Are you sure the MM hasn't blown the mA fuse? Try setting the MM to the 10A, & see you have a reading there. It will work, just be less accurate -show 0.005mA, as opposed to 500mA, when the MM is set to the mA rating.

To add an image, click on the 'Attachments and other options' below the dialogue box. You can add images, photos, etc. on your local PC, from there.

See how you go. Seems your basics are sound. If any of the forum's experts note any inconsistencies, then please correct me.
3 years ago: the wrong side of 55 -now, heading towards good health!