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The normal boiling point (also called the atmospheric boiling point) of a liquid is the special case in which the vapor pressure of the liquid equals 101.325 kilopascals (kPa). [3][4]
Normal Boiling Points for Organic Compounds: Correlation and Prediction by a Quantitative Structure-Property Relationship. Victor Lobanov Mati Karelson. 1998, Journal of Chemical Information and Modeling. See full PDF. download Download PDF. Correlation of Boiling Points with Molecular Structure. 1.
There are two ways in which a pressure nomograph can be used (i) to determine the boiling point at atmospheric pressure (760 mm Hg) given the boiling point at a lower pressure and (ii) to determine the boiling point at a lower pressure given the boiling point at atmospheric pressure.
15 Ιουλ 2023 · If this pressure is the standard pressure of 1 atm (101.3 kPa), then the temperature at which the liquid boils is referred to as its normal boiling point. This is the boiling point which is usually quoted in chemical literature.
21 Σεπ 2022 · The normal boiling point is the temperature at which the vapor pressure of the liquid is equal to standard pressure. Because atmospheric pressure can change based on location, the boiling point of a liquid changes with the external pressure.
19 Ιαν 1998 · Models that accurately predict normal boiling points for organic compounds containing heteroatoms have been developed with regression and computational neural network methods. The structures of the …
The following formula provides a good estimate to correct an observed boiling point to a normal boiling point: ∆t = 0.00012 (760 - p) (t + 273) where ∆t is the correction in degrees Centigrade to be added to the observed boiling point t at barometric pressure p.
