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The Bucket Cell - Start to Finish


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#341 WSM

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Posted 20 June 2018 - 12:09 PM

can anyone recommend a ebay seller that I can buy a good mmo anode from ?


I've had good results using MMO from laserred. I don't know what shipping will cost, but you can inquire and request a shipping quote from him.
Good luck.

WSM B)

#342 memo

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Posted 20 June 2018 - 03:05 PM

I've had good results using MMO from laserred. I don't know what shipping will cost, but you can inquire and request a shipping quote from him.
Good luck.

WSM B)

 

can not find him on ebay, do you have a link ?



#343 WSM

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Posted 20 June 2018 - 03:55 PM

can not find him on ebay, do you have a link ?


I just checked. His eBay listings are closed. Sorry about that. Check later and see if he lists them again later on. He might be off on holiday or something.

WSM B)

Edited by WSM, 20 June 2018 - 03:58 PM.


#344 memo

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Posted 20 June 2018 - 05:21 PM

WSM thanks for checking

 

memo



#345 memo

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Posted 24 June 2018 - 03:59 PM

I looked all over ebay and then googled mmo anodes and china is about the only place to get them. takes about 2 weeks to get to florida then 10 more days to get here. what is the best cathode to run with a mmo anode and with lead oxide ?

 

memo


Edited by memo, 24 June 2018 - 04:00 PM.


#346 WSM

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Posted 24 June 2018 - 04:12 PM

I looked all over ebay and then googled mmo anodes and china is about the only place to get them. takes about 2 weeks to get to florida then 10 more days to get here. what is the best cathode to run with a mmo anode and with lead oxide ?
memo



CP (commercially pure) grade titanium is the cathode material I use the most. I've had very good results using it.

Good luck.

WSM B)

Edited by WSM, 28 June 2018 - 10:55 PM.


#347 WSM

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Posted 26 June 2018 - 06:45 AM

Good news!

It looks like laserred has re-listed his MMO mesh. Check eBay item number: 332699421671

He also lists a sheet of CP titanium, grade 1.
 
See if that works for you.
 
WSM B)

Edited by WSM, 28 June 2018 - 10:55 PM.


#348 memo

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Posted 26 June 2018 - 09:09 AM

thanks for the heads up, i was getting to order from china. it now on the way.  have you used the lead oxcide anodes out of china, are they any good ?

 

memo



#349 WSM

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Posted 26 June 2018 - 10:41 AM

have you used the lead oxcide anodes out of china, are they any good ?
memo


Hi Memo,

Yes, in fact all my LD on titanium anodes are of Chinese origin.

Since several posters here mentioned their Chinese LD anodes failing (coming apart in use), I loaded mine gently, running them at lower current levels rather than at maximum.

I had good success running them at 0.1 to 0.2 Amps per square centimeter.

As an added benefit, the ozone generation was minimized as well.

Did you see laserred's listing of CP titanium sheet, also? If you can't find a local source for titanium sheet metal, this may help your efforts. Good luck.

WSM B)

Edited by WSM, 28 June 2018 - 07:22 AM.


#350 memo

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Posted 28 June 2018 - 04:34 PM

i think i figured out my black water problem. I got rid of the titanium tube I used to mount the mmo and I used the second half and gave it a try. also used the uncut end of the mmo in solution. I have 12 hours run time, no black water. hope I have it figured out.

 

memo



#351 Mumbles

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Posted 29 June 2018 - 12:47 AM

What do you think was the issue?


Just so you guys quit asking, here is the link to the old forum. http://www.xsorbit2....forum/index.cgi

The sky is my canvas, and I have 2,113 pounds of powdered paint in the workshop.

#352 memo

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Posted 29 June 2018 - 06:40 AM

i am not sure what the problem was. i cut the mmo with a disk grinder. or the ti tube I used was not as pure as I thought



#353 WSM

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Posted 29 June 2018 - 07:06 AM

i think i figured out my black water problem. I got rid of the titanium tube I used to mount the mmo and I used the second half and gave it a try. also used the uncut end of the mmo in solution. I have 12 hours run time, no black water. hope I have it figured out.

memo

 

Hi Memo,

 

I'm wondering, what grade of titanium is the tubing you used? I ask because alloyed titanium can have metals included which are incompatible with the environment of the cell.

 

Also, what material is the cell container constructed from? One of my first experiments (over ten years ago) used an HDPE container for a cell which started to deteriorate and leave black flakes floating in the cell, as the chlorination progressed.

 

The more details you can share, the more likely we can discover what caused the issue...

 

WSM B)


Edited by WSM, 29 June 2018 - 07:07 AM.


#354 WSM

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Posted 29 June 2018 - 07:41 AM

i am not sure what the problem was. i cut the mmo with a disk grinder. or the ti tube I used was not as pure as I thought


I usually cut my MMO mesh with a hacksaw or some other thin blade metal cutting device. The bare titanium edges don't cause any problems in the running cell because of the nature of CP titanium.

I search carefully for CP grade titanium tubing for use as leads for my electrodes. The thicker walled tubing seems to form very well when heated repeatedly while forging.

WSM B)

Edited by WSM, 29 June 2018 - 07:44 AM.


#355 memo

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Posted 02 July 2018 - 04:40 PM

I have a 93 hours on this run, I tested it with some methaline blue and I did get a violet color. going to run for a couple of more days. first time to get a positive test for perchorate



#356 WSM

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Posted 04 July 2018 - 09:25 PM

Happy Independence Day to all the US members here (A glorious fourth to you all!).

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#357 WSM

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Posted 16 July 2018 - 06:57 AM

I have a 93 hours on this run, I tested it with some methaline blue and I did get a violet color. going to run for a couple of more days. first time to get a positive test for perchorate

 

That's interesting.
 
Is this is a sodium chlorate cell, running with MMO and titanium electrodes? I thought perchlorate production wouldn't happen with MMO due to its lower oxygen potential (as opposed to platinum or lead dioxide). 
 
Please tell us more details when you can. Thanks.
 
WSM B)

Edited by WSM, 19 July 2018 - 08:14 AM.







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