Author Topic: Cleaning CG Stained Glass Cup  (Read 102 times)

Offline xozhang3

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Cleaning CG Stained Glass Cup
« on: March 29, 2021, 02:14:15 AM »
One of my small glass cups has been used for quite while for colloidal gold. I was at a loss when I tried to clean it such that the ruby red hue in it's wall disapears. I tried soap, dish washing liquid, and hydroperoxide to no avail.  Finally I tried a few drops of Lugol's solution and it worked!  The only drawback is my index finger got stained with iodine, which dispeared on its own sometime later.

Offline Josie29

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Re: Cleaning CG Stained Glass Cup
« Reply #1 on: March 29, 2021, 08:52:23 PM »
Good find for CG removal!

To get rid of Lugol stains .... dampen powdered Vitamin C (ascorbic acid) and rub onto stain. This works on inanimate objects and will probably work on fingers too!

Offline xozhang3

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Re: Cleaning CG Stained Glass Cup
« Reply #2 on: March 29, 2021, 09:34:19 PM »
Good tip!  We got CG, iodine, and VC, we can supplement while doing the cleaning :D