Chemgineer
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Potassium Bromate Cell
I've just started a Potassium Bromate cell with saturated Potassium Bromide solution. I've got a Platinum Anode and a Titanium Cathode. The colours
are quite nice!
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Chemgineer
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5.8v @ 5amps
You can see the temperature is holding at 52 deg C.
ps. My phone has a Flir thermal imaging camera which is really useful.
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Chemgineer
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Ok so I might have to swap the anode to a carbon one... there is a hole through the platinum plating to the titanium underneath at the very tip. I'm
guessing this was a fault in the plating surface that it has got into. I've dabbed the damaged area with epoxy for now but have a carbon rod the same
diameter if it gets worse.
#Update, switched to the carbon electrode, just means I may have to recrystallise the product so I can filter out the carbon.
[Edited on 4-7-2021 by Chemgineer]
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mysteriusbhoice
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Mood: Became chemistry catboy Vtuber Nyaa
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UHHH u know that you should never use a titanium substrate anode in bromate cells as bromide can etch Ti like fluoride can!!
Use graphite or a thick PbO2 anode only.
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Fantasma4500
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Mood: dangerously practical
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if you do this, use a tall container
i lost my MMO to this many years ago haha
no point in using platinum for this, you need fluorine gas to make perbromate
but hey im down to sell you some nifty platinum anodes cheap
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