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recipes

Posted: 17 Feb 2012, 10:33
by mazza
Hi
Has anyone the recipe for saturated Potassim Nitrate
I need to prepare 200mls of a saturated sonl'n
Thanks

Re: recipes

Posted: 17 Feb 2012, 10:39
by rae
The solubility of KNO3 is 38g/100ml. So if you start with 76g in 200ml of water. I usually heat the solution gently not to boiling and then add extra KNO3 for good measure.

Re: recipes

Posted: 17 Feb 2012, 10:57
by mazza
Hi Rae,

Thanks for the info,
Mazza

Re: recipes

Posted: 17 Feb 2012, 10:59
by mazza
Hi again,

Does anyone have a solubility table???

Re: recipes

Posted: 17 Feb 2012, 11:07
by rae
I get mine out of the SI Chemical Data book. Th Laboratory By B Dungey has tables on pps 11- 25.

Re: recipes

Posted: 20 Feb 2012, 08:07
by mazza
Thanks, I looked in the Laboratory but didn't see that it contined on the
same page ie. page 21