![]() While theoretically all boiling points should be constant from source to source, in reality the reported boiling points sometimes vary. The literature boiling point depends on the method and ability of the technician taking the boiling point, and also on the purity of the compound. ![]() Boiling points are listed in various sources of scientific data, as referenced on the page on this website.If you look up the boiling point of a compound in more than one source, you may find that the values reported differ slightly. This is because the liquid can be superheated or contaminated with other substances, and therefore its temperature is not an accurate measurement of the boiling temperature.If you are using the boiling point to identify a solid compound which you have isolated in the lab, you will need to compare its boiling point with that of the true compound. The vapor temperature rather than the pot temperature is measured because if you put a thermometer actually in the boiling liquid mixture, the temperature reading would likely be higher than that of the vapors.
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