Worldwide Beekeeping

Beekeeping => Pests and Diseases => Topic started by: Jen on February 10, 2016, 06:56:06 pm

Title: Can Oxalic Acid Lose It's Potency?
Post by: Jen on February 10, 2016, 06:56:06 pm

Time for OA treatments. Looks like this oxalic acid has absorbed some moisture over winter. Is it still usable? Has it lost any potency?

(https://worldwidebeekeeping.com/forum/proxy.php?request=http%3A%2F%2Fs16.postimg.cc%2F3llv3xpa9%2FDSCF8895.jpg&hash=69473d55d871183bb8ef3c5dd273f580aba76c88) (http://postimg.cc/image/3llv3xpa9/)

Title: Re: Can Oxalic Acid Lose It's Potency?
Post by: Perry on February 10, 2016, 07:24:15 pm

Not an expert, but if the jars was sealed it should still be OK.

Title: Re: Can Oxalic Acid Lose It's Potency?
Post by: rwlaw on February 10, 2016, 08:08:59 pm

I don't think it goes stale, but it'll soak up moisture which leads to a longer heat time before it vaporizes. I was reading some problems poeple were having with their homemade vaps and burn times (up to eight minutes) and some of them were because of moist OA. Try some, if it takes longer than usual to vap you'll know what's up.

Title: Re: Can Oxalic Acid Lose It's Potency?
Post by: CBT on February 10, 2016, 08:22:58 pm

You can always do a test burn to get your time.

Title: Re: Can Oxalic Acid Lose It's Potency?
Post by: Jen on February 10, 2016, 08:34:48 pm

Good Idea! Thanks  :) 8)