Electrochemistry Durimet Alloy

[rusty]

How well will this Durimet alloy stand up to dilute sulfuric acid which is in contact with ferric or cupric salts.

 

[goldsilverpro]

How well will this Durimet alloy stand up to dilute sulfuric acid which is in contact with ferric or cupric salts.

Hey, Gill,

Durimet 20 is a stainless steel similar to 18-8 or 316. According to this, Durimet 20 will stand up to nitric or any strength of sulfuric. Note in the chart that it provides poor resistance to any chemical containing chlorides. If the Fe or Cu salts are sulfates or nitrates, I would think it would be OK. However, as an anode, it would definitely dissolve in dilute H2SO4. It would probably work as a cathode.
http://www.crp.co.uk/UserFiles/Documents/Corrosion%20Resistance/Durimet%2020%20%28CN-7M%29.pdf

 

[rusty]

How well will this Durimet alloy stand up to dilute sulfuric acid which is in contact with ferric or cupric salts.

Hey, Gill,

Durimet 20 is a stainless steel similar to 18-8 or 316. According to this, Durimet 20 will stand up to nitric or any strength of sulfuric. Note in the chart that it provides poor resistance to any chemical containing chlorides. If the Fe or Cu salts are sulfates or nitrates, I would think it would be OK. However, as an anode, it would definitely dissolve in dilute H2SO4. It would probably work as a cathode.
http://www.crp.co.uk/UserFiles/Documents/Corrosion%20Resistance/Durimet%2020%20%28CN-7M%29.pdf

Thanks Chris that is exactly what I needed to know, I want something that will stand up in dilute sulfuric as an anode.

Is there anything that your aware of that would work as an anode in dilute sulfuric acid / copper sulfate bath.

Does carbon fiber cloth have a place in the plating industry.

 

[philddreamer]

Would tungsten work?

I did a search & found that ungsten, like lead is resistant to sulphuric acid.

Phil

 

[goldsilverpro]

What about lead?

 

[Geo]

lead is the best bet for a cathode in a sulfuric cell. if your working with concentrated sulfuric and can keep the heat manageable then copper is a close second. as with almost all other metals hot sulfuric will react to copper but not when its cool. concentrated sulfuric acid will react to stainless steel even when cool to a very measurable extent (you can see the reaction with the naked eye) and very much so when heated even slighty.