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Author: Subject: Solubility at low temperatures
Squall
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[*] posted on 24-9-2008 at 17:51
Solubility at low temperatures


I have been looking for the solubility of KNO3 at temperatures below zero, but i have had no luck finding such information. Can anyone point me to a source either a book or a site. I would greatly appreciate the help. thanks
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Squall
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[*] posted on 24-9-2008 at 19:23


my problem is i have a solution of KNO3 and NaCl since the dissolved NaCl lowers freezing temp. i would like to know how much more KNO3 can be precipitated by cooling down to say -10 degrees Celsius.
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[*] posted on 24-9-2008 at 19:53


How about precipitating out the Sodium chloride when the solution is boiling away, when it is really hot?

http://homepage.mac.com/dtrapp/PSgraphics.f/solubilities.gif

Seems like NaCl would be the first to come out of solution as the water left. but maybe Potassium Chloride.. though i highly doubt this. Unless of course some funky thing happens forming Sodium Nitrate and Potassium Chloride.
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