Shelf life ?

BUBBA9459 · 01/21/2006, 07:01 PM

I have several unopened bottles of ESV, Magnesium, Strontium, and Iodine.

They are from 1997

Do these chemicals have a shelf life ?

I'm not trying to be cheap, just curious if they are still safe to use.

Thanks

Randy Holmes-Farley · 01/22/2006, 07:38 AM

The magnesium and strontium are fine. The iodine may have oxidized to iodate or I2. That might still be Ok, but it wouldn't be my preference.

BUBBA9459 · 01/22/2006, 08:46 AM

Ok,

Thank You

Randy Holmes-Farley · 01/22/2006, 08:48 AM

You're welcome.

Happy Reefing.

01/21/2006, 07:01 PM	#1
BUBBA9459 Premium Member Join Date: Sep 2003 Location: Cincinnati Posts: 353	Shelf life ? I have several unopened bottles of ESV, Magnesium, Strontium, and Iodine. They are from 1997 Do these chemicals have a shelf life ? I'm not trying to be cheap, just curious if they are still safe to use. Thanks

01/22/2006, 07:38 AM	#2
Randy Holmes-Farley Reef Chemist Join Date: Apr 2001 Location: Arlington, Massachusetts Posts: 86,233	The magnesium and strontium are fine. The iodine may have oxidized to iodate or I2. That might still be Ok, but it wouldn't be my preference. __________________ Randy Holmes-Farley Current Tank Info: 120 mixed reef

01/22/2006, 08:48 AM	#4
Randy Holmes-Farley Reef Chemist Join Date: Apr 2001 Location: Arlington, Massachusetts Posts: 86,233	You're welcome. Happy Reefing. __________________ Randy Holmes-Farley Current Tank Info: 120 mixed reef

01/22/2006, 08:46 AM	#3
BUBBA9459 Premium Member Join Date: Sep 2003 Location: Cincinnati Posts: 353	Ok, Thank You