So2 Standard For Hanna Titrator
Posted 26 September 2010 - 11:28 PM
Posted 15 May 2011 - 11:09 AM
That day. You should make it up in a 0.1% citric acid solution to liberate the SO2, ie. 1g citric in 1000mL H2O. Deionized is better and usually Purified Water from the store works fine.
I had a question about lifespan of SO2 in water. I found out I can save $$ by making my own Standard solution of 100 ppm. But if I put the powder into water, how long will the solution maintain it's 100 ppm ? IfIs distilled or de-ionized water preferable?
Posted 06 July 2011 - 07:52 AM
Yeah, I was a little late showing up.
just saw the note. Interesting. Thanks Reverend!
Posted 06 July 2011 - 09:21 AM
I understood water which are not free of dissolved oxygen may creat an error.
Posted 12 July 2011 - 07:53 PM
Oh, I'll try to work out the error in a couple months. My free time for math has taken a turn towards the non-existent.
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