[ RadSafe ] KI Shelf-Life Extension Data Potassium iodate instead of KI

[parthasarathy k s]

Dear Mike,

In India, we had difficulty in maintaining potassium iodide tablets, primarily I thought because it is hygroscopic. We switched over to potassium iodate. I was told it works fine.

Regards,
Parthasarathy




________________________________
 From: "Brennan, Mike (DOH)" <Mike.Brennan at DOH.WA.GOV>
To: The International Radiation Protection (Health Physics) MailingList <radsafe at health.phys.iit.edu> 
Sent: Saturday, 8 June 2013, 2:58
Subject: Re: [ RadSafe ] KI Shelf-Life Extension Data
 

I have always been a little fuzzy on what exactly goes bad with KI in
order to limit its shelf life.  I guess if it is in an unsealed
container, subject to high temperatures, high humidity, and maybe
something else, there could be some chemical changes.  But in a sealed
container that doesn't react with K and/or I, let alone the salt, it
seems to me that what you get out is what was put in.

-----Original Message-----
From: radsafe-bounces at health.phys.iit.edu
[mailto:radsafe-bounces at health.phys.iit.edu] On Behalf Of Iannaccone,
Mario (DPH)
Sent: Friday, June 07, 2013 2:15 PM
To: The International Radiation Protection (Health Physics) Mailing List
Subject: [ RadSafe ] KI Shelf-Life Extension Data

Radsafe members:

On behalf of my interim director I pose the query below:

"Please send a Note out to Rad Safe on the issue of other states with
non-EPZ KI distribution and whether any states have requested a shelf
life extension at any time." 

I realize that this is primarily, a regulatory issue and may not be
applicable for this forum; however the crux of the question is centered
on extension of KI shelf-life (stability testing). Any input would be
appreciated.

MIannaccone, RCO
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