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Author: Subject: Mineral oil with density of 0.9 instead of 0.8?
metalresearcher
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[*] posted on 13-1-2012 at 13:13
Mineral oil with density of 0.9 instead of 0.8?


For potassium separation I am searching for an oil slightly heavier than K metal which has a density of 0.86.
Which oil can I use for this? Most oils are 0.8.
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zoombafu
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[*] posted on 13-1-2012 at 14:06


You could use canola oil, it has a density of .92 g/mL.



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unionised
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[*] posted on 13-1-2012 at 16:15


"You could use canola oil"
briefly
http://en.wikipedia.org/wiki/Acyloin_condensation
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entropy51
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[*] posted on 13-1-2012 at 17:02


This would have been a good question for the short questions thread.:)
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Mr. Wizard
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[*] posted on 13-1-2012 at 18:23


More double bonded carbons, and longer chain length equals more density in general, as the ratio of C to H goes up.
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metalresearcher
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[*] posted on 14-1-2012 at 00:04


Quote: Originally posted by Mr. Wizard  
More double bonded carbons, and longer chain length equals more density in general, as the ratio of C to H goes up.

So, candle wax (i.e. paraffin)?
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Dr.Bob
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[*] posted on 14-1-2012 at 09:33


The only thing that will make the density heavier than 0.9 would be more heteroatoms, like oxygen, sulfer or halogens, and most of them will react with K in a violet manner. You will be hard pressed to find an oil that dense that in only a hydrocarbon, and I am sure that there is something that would work, that does not react with K, but it might be pricey. Maybe a Dowtherm oil or some silicon based oil, but make sure they are stable to K before using.
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