Solubility of metals as a function of pH

[FishScreener]

Not sure if this is the right group to ask, but I think you will know either the answer or who to ask:

One of the hydrologists working on a mine tailings environmental study just walked in and asked if I had a table that shows the solubility of various metals as a function of the pH.

I found a graph that shows it. But, she would like a table.

Does anyone know of one on line?

 

[EdStainless]

Which metals in which acids?
I would assume that an extractive metallurgy text would be the best source.

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Plymouth Tube

 

[strider6]

As a general rule the lower the pH the higher the corrosion of a metal. the solubility is a function of pH and temperature also.

have a look at this book on google books, maybe is the graph that you already have:

Geoenvironmental engineering: principles and applications

http://books.google.com/books?id=r-...v=onepage&q=metal oxide solubility pH&f=false

A practical guide for determining the solubility of metal hydroxides and oxides in water

http://www3.interscience.wiley.com/journal/112735810/abstract?CRETRY=1&SRETRY=0

hope this help u

S

Corrosion Prevention & Corrosion Control

 

[robsalv]

Interestingly I just had a manager ask the same question. I said that directionally, lower pH's mean more corrosion, but it's also a function of temperature and oxidising strength of the acid.

In our case we have a hydrocarbon process stream into which a range of organic acids condense as the stream loses temperature.


We sample daily and have history which shows repeated pH readings down in the 3- 4 range... but the piping thickness seems to be ok. Still, I wouldn't mind a rule of thumb regarding CS's corrosivity v's pH.



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