Proper material for electrolytic cell?

In summary, the group is discussing the best material for the cathode/anode in the electrolysis of waste fix solution from photo labs on campus. Stainless steel is suggested as a good option, but there is also consideration for using silver, which could be more expensive and harder to find.
  • #1
mesa
Gold Member
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We are considering recovering the silver out of our waste fix solution from the photo labs on campus.

What is the best (reasonably acquired) material (as in non-platinum) for the cathode/anode?
 
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  • #2
For electrolysis of water stainless steel is very good, but I don't know about recovering silver.
 
  • #3
kevin_tee said:
For electrolysis of water stainless steel is very good, but I don't know about recovering silver.

Stainless seems to be the best bang for the buck for this as well. Anyone else have something to add or does this seem like the most reasonable choice?
 
  • #4
I wonder if silver itself would not do the trick. It is inert enough for many applications, and in case it dissolves it will just reappear on the cathode.
 
  • #5
Borek said:
I wonder if silver itself would not do the trick. It is inert enough for many applications, and in case it dissolves it will just reappear on the cathode.

Silver would probably work and we could reverse the cathode/anode configuration to keep the plates 'even' but the material is expensive and could be difficult to find in plates, as in it is likely not available on campus in on of our scrap piles :)
 

1. What materials are suitable for constructing an electrolytic cell?

The materials used to construct an electrolytic cell depend on the type of electrolyte being used. Generally, materials that are resistant to corrosion and can withstand high temperatures and electrical currents are preferred. Some common materials include platinum, titanium, stainless steel, and graphite.

2. Can common household materials be used in an electrolytic cell?

It is not recommended to use common household materials in an electrolytic cell as they may not be resistant to the corrosive effects of the electrolyte or may not be able to withstand the high temperatures and electrical currents. It is best to use materials specifically designed for use in electrolytic cells.

3. Is there a specific material that is best for all types of electrolytes?

No, the best material for an electrolytic cell depends on the specific electrolyte being used. Some electrolytes may require a more resistant material, while others may not be as corrosive and can use a less expensive material.

4. Are there any safety considerations when choosing materials for an electrolytic cell?

Yes, safety should always be considered when choosing materials for an electrolytic cell. It is important to use materials that are non-toxic and do not react with the electrolyte. Care should also be taken to prevent any potential hazards such as leaks or short circuits.

5. Can the materials used in an electrolytic cell affect the efficiency of the process?

Yes, the materials used can have an impact on the efficiency of the electrolytic process. Materials that are more conductive and have a larger surface area can improve the efficiency of the cell. It is important to choose materials that are suitable for the specific electrolyte and can help maximize the efficiency of the process.

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