(Hive Bee)
07-25-03 00:51
No 449633
(Rated as: excellent)
Relative solvent polarity index and other properties of the many listed solvents -http://home.planet.nl/~skok/techniques/h
I can table it in to Hive-format but it gonna cost ya!
not really.Downloadable spreadsheet of info excel 97
http://home.planet.nl/~skok/techniques/h
The first page also has a link to this page - http://www.raell.demon.co.uk/chem/calcs/
An online calculator relating to Pressure units, solvent properties, buffer solution calculaions, pKa and chemistry relevant log functions among other things...
(Hive Bee)
08-08-03 20:35
No 452490
Is it set in stone that a substance that dissolves in a solvent on this list, will dissolve in a solvent with a higher polarity?
Is it also safe to assume that a substance that doesn't dissolve in a solvent of a specific polarity, won't dissolve in a solvent of an even lower polarity?
If we had an index of the pH's of substances in they're polar and non-polar states would that provide for a fuller picture of understanding?
(Chief Bee)
08-12-03 23:46
No 453179
Is it set in stone that a substance that dissolves in a solvent on this list, will dissolve in a solvent with a higher polarity?
Is it also safe to assume that a substance that doesn't dissolve in a solvent of a specific polarity, won't dissolve in a solvent of an even lower polarity?
Absolutely not, it is not even true the other way around. However, you can be almost sure that a substance which is soluble in a certain solvent is also soluble in a solvent of similar polarity.
(Hive Bee)
08-13-03 18:06
No 453344
Rh, thanks for the time and corrections kind teacher.
What led me to ask the question was that I've commonly seen for example merck entries that might say a substance is soluble in maybee 3 named solvents. So it makes me think that the author is giving me enough solubility information that I should bee able to extrapolate solubility in other solvents. (He is but for the reason you said lastly)
From what you've said, Ill take it as the author giving me the probable solubilities of a substance in a small band of the spectrum of solvent polarities.
Actually, giving 3 solubilities is nice, it probably vaguely describes the centre and upper and lower limits of the band!
And this also probably extends to giving the polarity of the actual substance, unless it's a substance that doesn't follow the "like dissolves like" rule.
sorry for talking so much
bye for now