SS's - potassium iodide
SS's - potassium iodide
(OP)
Hi, mates:
The limitations of SS's in aqueous chloride solutions is very known. Many threads have been written on this issue, some of them recently.
But, what are the differences with other halides solutions? The chemistry of all halides should be similar, but...
I've a case with a vessel, piping and pumps to handle a solution of potassium iodide at 1%wt. No other salts are present (demin water is used, at ambient temperature), but the use of the system will be intermittent (95% of the time the fluid will be stagnant). Is SS304 adequate?
Doing a search in this forum, I’ve found a couple of threads: Thread124-59118 and Thread338-89685
From the second one, it was suggested to use the following Cole-Parmer website http://www.coleparmer.com/techinfo/ChemComp.asp
From there, the first conclusion is that 304 should be fine. My concern now is related to the stagnant conditions, as it was discussed in this forum, about chlorides.
Is there anything that would be added, colleagues?
J.Alvarez
The limitations of SS's in aqueous chloride solutions is very known. Many threads have been written on this issue, some of them recently.
But, what are the differences with other halides solutions? The chemistry of all halides should be similar, but...
I've a case with a vessel, piping and pumps to handle a solution of potassium iodide at 1%wt. No other salts are present (demin water is used, at ambient temperature), but the use of the system will be intermittent (95% of the time the fluid will be stagnant). Is SS304 adequate?
Doing a search in this forum, I’ve found a couple of threads: Thread124-59118 and Thread338-89685
From the second one, it was suggested to use the following Cole-Parmer website http://www.coleparmer.com/techinfo/ChemComp.asp
From there, the first conclusion is that 304 should be fine. My concern now is related to the stagnant conditions, as it was discussed in this forum, about chlorides.
Is there anything that would be added, colleagues?
J.Alvarez





RE: SS's - potassium iodide
We have an extensive 304/304L piping system with all types of nook and crannies along with intermittent service that has been inservice moving both NaI and KI in all concentrations for many years. We use all welded pipe and require code welds.
RE: SS's - potassium iodide
= = = = = = = = = = = = = = = = = = = =
Corrosion never sleeps, but it can be managed.
http://www.trenttube.com/Trent/tech_form.htm