Author Topic: Home made Ti electrodes  (Read 611 times)

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alchemy_bee

  • Guest
Home made Ti electrodes
« on: April 05, 2002, 03:19:00 PM »
Specialty metal electrodes are WAY the heck up their price wise. Following

https://www.thevespiary.org/rhodium/Rhodium/chemistry/guest.phenylacetone.txt

and choosing an anode for an electrochemical oxidation SWIM would like to use a Ti anode coated with 50-50 mix of Ti and Ru oxide as described.

Would it be practical to perchase a length of scrap Ti billet and have it custom coated by an electroplater? I know one is going to pay up the wazoo for the electroplating, but if an alloy of Ti is selected for the anode would the trace amounts of other elements in the alloy effect the reaction?

SWIM would think not as long as it is going to be coated with Ti-Ru. Also, what would be the smartest way to attach lead wires from the homemade electrode?

Can a bee be visa vis its entity when half a bee philosophically must ipso facto half not be?

callen

  • Guest
Available electrode materials...
« Reply #1 on: April 05, 2002, 06:18:00 PM »
Carbon rods are easy to acquire and work well. ;D

alchemy_bee

  • Guest
Callen: Agreed, but for SWIMS needs if a 5% ...
« Reply #2 on: April 06, 2002, 12:18:00 AM »
Callen: Agreed, but for SWIMS needs if a 5% increase is seen in yield than the extra cost of materials is satisfied. Plus the added perks for putting together a bad-ass set up!

Can a bee be visa vis its entity when half a bee philosophically must ipso facto half not be?

terbium

  • Guest
Electroplating
« Reply #3 on: April 06, 2002, 03:44:00 AM »
I think you will have a hard time finding someone to do the electroplating for you. This is something you will have to do yourself.

Attaching a wire to the electrode is another interesting problem.

Scooby_Doo

  • Guest
Electroplating
« Reply #4 on: April 06, 2002, 03:36:00 PM »
I had a hard enough time finding someone who could plate platinum let alone ruthenium. I agree with terbium you'll have to plate it yourself. Kirk-Othmer Encyclopedia of Chemical Technology is were I would start maybe Vol 9 in the 4 ed under Electroplating.

"A general purpose bath uses 5.3g/L of ruthenium as the sulfamate salt with 8g/L sulfamic acid, and is operated at 25-60 deg C with a pH of 1-2."

The anode is just something that won't react carbon maybe or platinized Ti which you can buy form electroplating supply houses. He didn't give a current density but I would say its say up to 100A/m2 would be safe. (worked on the cathode/the thing your plating/the negative). Keep your electrodes about 20-40 cm away from each other.

However I do suggest you look up my post in the Novel discourse which actually used isosafrole which may or may not be of more use. Plus they used Pt electrodes, hence all you need is the platinized Ti which can be had at any electro supply house since industry uses it as the anode for plating gold.

alchemy_bee

  • Guest
SWIM found that most any mid-sized+ ...
« Reply #5 on: April 06, 2002, 05:25:00 PM »
SWIM found that most any mid-sized+ electroplating company would plate in any metal you wanted, especially if you provide the metal salts which is the biggest hang up if just call up some place and ask them flat out if they can plate in Ru. Definitely get one of the guys who actually does the electroplating on the phone and with a little sweet talk im sure you would have it done.

As far as for attaching leads, another bee PMed me with a great idea - tried and true. One can purchase carbon or graphite rod made for electrodes (that is to say the leads are all ready attached) and plate over that with the desired metals. Since the exposed metal is all that is relevant to the reaction its more practical and entirely effective to use a donor graphite electrode - more so over the cost of a peice of scrap titanium billet

Can a bee be visa vis its entity when half a bee philosophically must ipso facto half not be?

Scooby_Doo

  • Guest
Electroplaters
« Reply #6 on: April 07, 2002, 03:11:00 AM »
That sounds great, all of the companies that I tried were useless.

Try precious metals dealers. They sometimes supply rare metal salts/solutions to platers.