Sciencemadness Discussion Board

A place to buy platinum plated titanium anodes ?

jhonn - 24-12-2012 at 07:33

I would like someone to indicate me a place that sells platinum plated titanium anodes to individuals, and ships worldwide.I want the small ones, maybe 5 to 15 square inches.

hissingnoise - 24-12-2012 at 10:00

Check out these rod anodes . . .
They're a London based company!



hyfalcon - 24-12-2012 at 10:47

Here's where I bought my first one:

http://www.ebay.com/itm/Platinized-Titanium-Anode-2x3-/12072...

jhonn - 31-12-2012 at 05:19

Quote: Originally posted by hyfalcon  
Here's where I bought my first one:

http://www.ebay.com/itm/Platinized-Titanium-Anode-2x3-/12072...

Good.But it is listed as an anode for jewelry plating, will it work in a perchlorate cell ? Also, do you know what is the maximum current density this anode can take ?

hyfalcon - 1-1-2013 at 02:03

I was pushing 10-15 amps with a car battery charger through it with no problem. Yes it will make perchlorate. I abused my anode by going all the way from Chloride to Perchlorate with it so it does work.

Funkerman23 - 1-2-2014 at 23:29

Pardon "zombying" the thread but since you posted this how have the electrodes held up to chloride to perchlorate cell runs? Having a heck of a time finding a starting point on this kinda thing. Dann2's site is a no show for some time now as well so I can't ask him.
Quote: Originally posted by hyfalcon  
I was pushing 10-15 amps with a car battery charger through it with no problem. Yes it will make perchlorate. I abused my anode by going all the way from Chloride to Perchlorate with it so it does work.


[Edited on 2-2-2014 by Funkerman23]

Antiswat - 2-2-2014 at 06:35

http://109.108.129.70/index.php/titanium-anodes-electrodes/platinised-ti-anode-electrode/1-2/1mm-thick-titanium-platinised-anode-mesh.html

anybody seeing profit in me buying 5 of those 50 x 50 mm??
i could potentially drag price down to 70 euro each 50 x 50 mesh if anybody would be interested without having too much of a profit myself.. (:
im located in EU, if anybody would be interested in 70 euro for a 50 x 50 mesh platinized titanium i could order a decent amount to get discount, PM me..

hissingnoise - 2-2-2014 at 07:23

Quote:
From TS:─

TiPTA-25-RD-010-02-01 Titanium PT Anode Rod 2.5micron 1mm Dia x 200mm Long 1
£56.00

TiPTA-25-RD-010-02-02 Titanium PT Anode Rod 2.5micron 1mm Dia x 200mm Long 2
£79.00

Interesting pricing?

Using them as cathode and anode (and periodically reversing polarity) can significantly prolong their working life . . .


Antiswat - 2-2-2014 at 07:38

entirely sure about that?? very interesting idea..

it could be done simply by shifting - and + per each run making a decently equal reverse

hissingnoise - 2-2-2014 at 08:07

Yes, Pt lost from the anode will plate the cathode fairly uniformly so that only the very minimum Pt is lost in soln..
That's the theory, anyhoo . . . ?

hyfalcon - 2-2-2014 at 08:58

Quote: Originally posted by Funkerman23  
Pardon "zombying" the thread but since you posted this how have the electrodes held up to chloride to perchlorate cell runs? Having a heck of a time finding a starting point on this kinda thing. Dann2's site is a no show for some time now as well so I can't ask him.
[Edited on 2-2-2014 by Funkerman23]


I have since switched off to MMO mesh for my chlorate production. Only when I have purified chlorate do I switch it to my platinum anodes. Wish I had a scrap platinum crucible to cut up.

hyfalcon - 2-2-2014 at 09:10

Quote: Originally posted by hissingnoise  
Yes, Pt lost from the anode will plate the cathode fairly uniformly so that only the very minimum Pt is lost in soln..
That's the theory, anyhoo . . . ?


In my experience, what it will do is de-laminate from the titanium substrate leaving particles in the bottom of your reaction vessel.

Varmint - 2-2-2014 at 12:52

Why do you specify titanium base? The highest quality platinum clad electrodes use niobium as a base for better bonding with the platinum.

You can contact Anomet at anometproducts.com

DAS

Zyklon-A - 2-2-2014 at 12:59

Anomet is a good place to get anodes.

hissingnoise - 2-2-2014 at 13:04

Delamination occurs when a plated Ti anode becomes exposed to the action of the electrolyte ─ the oxide layer which forms displaces the Pt layer at the anode surface!

Xenoid - 2-2-2014 at 14:46

I bought my first Pt clad Ti anode from a wholesale jewelry-making equipment supplier in Australia, they no longer sell them however.

After a quick check of the web, this place came up!

http://www.jewelerstoystore.com/Platinum_Clad_Anode_p/p60-5....

They have a 6" x 1" for $109 and a 4" x 1" for $80.

Only use the anode in pure chlorate solution to make perchlorate if you desire it to last.

Funkerman23 - 3-2-2014 at 21:01

Since I can't edit my other post: I didn't mean to start the anode wars again. I asked as MMO is a pain in the butt to find( thank god sbbspartan runs a site with mmo mesh in stock)and I was giving thought to a straight chloride to perchlorate cell but I didn't know how bad the platinum erosion was doing that assuming the Pt on Ti mesh for the anode and a titanium cathode. Yes I know look in Technochemistry for more but still: didn't mean to start the war again.

hyfalcon - 4-2-2014 at 02:19

He doesn't have any now, but ALL my MMO that I have I bought is from laserred on ebay. I've got quit a bit, pm me if you need some.

[Edited on 4-2-2014 by hyfalcon]

testimento - 9-2-2014 at 11:46

Could one coat own electrodes with platinum? This would save great amounts of money, by my calculations the cost of readily sold electrodes are 10-50 fold the actual cost of Ti+Pt metal required, thus rendering them effectively unobtainable for amateurs. I'd believe it should be first turned into chloroplatinic acid and then maybe ammonium platinate and electrolyzed as common coating baths. Anyone got experience playing with this?

hyfalcon - 9-2-2014 at 12:08

@testimento

http://www.sciencemadness.org/talk/viewthread.php?tid=8768

Fleaker - 13-2-2014 at 04:35

Can't get low stress coatings from acid Pt(IV) baths.

10fingers2eyes - 30-6-2016 at 20:12

Quote: Originally posted by hyfalcon  
I was pushing 10-15 amps with a car battery charger through it with no problem. Yes it will make perchlorate. I abused my anode by going all the way from Chloride to Perchlorate with it so it does work.


Interesting, I bought this same anode and was not able to get any perchlorate production even after two weeks of run time on 3 liters of solution at 5.1V ...made chlorate by the ton though.

hyfalcon - 1-7-2016 at 02:38

What was your conditions in your reaction vessel? Needs 70C or so.

10fingers2eyes - 1-7-2016 at 14:19

70C really? Never saw that in literature I read, but I was running between 45-50 C pH about 8 in a sodium based solution. The anode just has what appears to be powdered platinum sintered onto the surface of the Ti base. Very corrosion proof but never got a positive on the methylene blue test. :(

hyfalcon - 1-7-2016 at 16:18

I always use potassium salt. No problem seeing where you are with it.