fishbait
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Precise B.P. of Ethanol
The CRC Handbook of Chem & Phys. gives a value of 78.5 degrees C. for the b.p. of ethanol at atmospheric press.
I would like to know to how many significant figures the value for ethanol has been determined experimentally. Where can I find the reference for:P
this work?
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solo
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Boiling Point 78.2 deg C EXP
source,
http://chem2.sis.nlm.nih.gov/chemidplus/jsp/common/ChemFull....
It's better to die on your feet, than live on your knees....Emiliano Zapata.
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jack-sparrow
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Boiling point varies with the atmospheric pressure. It will not be the same at 99 kPa or at 102 kPa. The purity of ethanol is an important factor
too. It has to be anhydrous and free of other 'denaturant' like toluene. The calibration of your thermometer is also important so you can mesure the
'decimals' accurately.
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fishbait
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Experimental b.p. for Abs. Ethanol
Some time back (about two weeks) I posted a query asking about the b.p. of ethanol, but in that post I am afraid I assumed too much. Here is a more
accurate statement of my query:
What is the best value ever published on the precise boiling point of asbsolute ethanol under standard conditions at 760 torr.
As a little background--I understand this work was carried out in the mid 1930's by the thermochemistry laboratory of the old National Bureau of
Standards in Washing ton,D.C. As I recall they reported an experimental value for the b.p. at that time with over five significant figures.
Does anyone have a record of that work, or can point me in the direction to find it?
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unionised
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Why the new thread?
Anyway, you might do better asking the NBS rather than posting here. Do you have any particular need for the data or are you just interested?
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Texium
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Thread Moved
19-11-2023 at 11:08 |
Texium
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Threads Merged
19-11-2023 at 11:10 |
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