As long as you don't add something like a complexing  agent to the KIO3 solution
you will be ok.


Sent from my Samsung device
-------- Original message --------From: Gianmario Scotti
 Date: 3/24/18  1:43 AM  (GMT-07:00) To: General
MEMS discussion  Subject: Re: [mems-talk] Potassium
iodate effect on gold?
Thanks William. If you're sure KIO3 doesn't affect gold in any way, that's
good enough for me.

I am not talking about Lugol's solution, I3K, obtained by dissolving
elemental iodine in an aqueous solution of potassium iodide, KI. I am
talking about potassium iodate, KIO3. I am also very aware that you can use
Lugol's solution to etch gold.

I know that some think materials scientists are only 50% chemists, but
still, maybe assume that I did not mix up iodates with iodides?




On Fri, Mar 23, 2018 at 8:05 PM, William H Lytle  wrote:

> Potassium iodate (KIO3) does not affect gold in any way.
> What you appear to be referring to is a mixture of potassium iodide (KI)
> and elemental iodine (I2) which forms the triodide anion (I3-). This does
> react with gold forming a water soluble complex, essentially dissolving
> gold. Yes Bob, we did call that mixture "turkey blood" and it will react
> with some photoresists but usually not in the time necessary to dissolve
> thin films of gold.
>
> -----Original Message-----
> From: Gianmario Scotti 
> Sent: Thursday, March 15, 2018 3:32 AM
> To: General MEMS discussion 
> Subject: [mems-talk] Potassium iodate effect on gold?
>
> Hello all,
>
>
> I have what might sound as an odd question, but hear me out nonetheless:
> what effect does potassium iodate have on pure gold (let's say,
> evaporated)? Or does the gold perhaps reduce the iodate?
>
>
> Thanks in advance,
>
>
> mario
>
>
> --
> Gianmario Scotti
>
> Researcher
> Leibniz-Institut für Ostseeforschung Warnemünde Seestraße 15
> 18119 Rostock
> Germany
>
> Visiting researcher
> Aalto University, School of Electrical Engineering
> http://elec.aalto.fi/en/ 
>
> Micronova, Tietotie 3
> 02150 Espoo
> Finland
> _______________________________________________
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--
Gianmario Scotti

Researcher
Leibniz-Institut für Ostseeforschung Warnemünde
Seestraße 15
18119 Rostock
Germany

Visiting researcher
Aalto University, School of Electrical Engineering
http://elec.aalto.fi/en/ 

Micronova, Tietotie 3
02150 Espoo
Finland
_______________________________________________
Hosted by the MEMS and Nanotechnology Exchange, the country's leading
provider of MEMS and Nanotechnology design and fabrication services.
Visit us at http://www.mems-exchange.org

Want to advertise to this community?  See http://www.memsnet.org

To unsubscribe:
http://mail.mems-exchange.org/mailman/listinfo/mems-talk
_______________________________________________
Hosted by the MEMS and Nanotechnology Exchange, the country's leading
provider of MEMS and Nanotechnology design and fabrication services.
Visit us at http://www.mems-exchange.org

Want to advertise to this community?  See http://www.memsnet.org

To unsubscribe:
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