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Topic: corrected / uncorrected melting points?  (Read 18660 times)

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Offline taurean

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corrected / uncorrected melting points?
« on: June 27, 2010, 01:15:53 PM »
What are corrected and uncorrected melting points?

Offline taurean

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Re: corrected / uncorrected melting points?
« Reply #1 on: June 29, 2010, 04:24:38 PM »
No one likes to reply?  ??? :( >:( ???

What are corrected and uncorrected melting points?

Offline MOTOBALL

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Re: corrected / uncorrected melting points?
« Reply #2 on: July 04, 2010, 10:27:59 AM »
Measure the m.pt. using any thermometer taken at random---this is UNCORRECTED

Measure the m. pt. using a calibrated thermometer---this is CORRECTED.

Offline OC pro

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Re: corrected / uncorrected melting points?
« Reply #3 on: July 04, 2010, 03:51:03 PM »
Most melting points you see in papers nowadays are uncorrected. A corrected melting point can be obtained by using a reference substance with a known melting point. If one measures the melting point of this reference compound on any apparatus available (remember the melting point is known, let it be y) one will obtain a certain melting point x. If x=y no correction has to be done. But if it differs, all melting points of samples with unknown melting points have to be corrected by the factor z (difference between x and y).

Offline taurean

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Re: corrected / uncorrected melting points?
« Reply #4 on: July 05, 2010, 08:19:31 AM »
Thank you OC Pro and Motoball.

OC Pro, it was a very good and clear explanation, appreciate it!

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