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Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them. Values for Melting point, Boiling point (properties) and Flash point, Autoignition temperature (hazards) can convert temperatures into the set of °C, °F and K.
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During heating, the point at which melting is observed and the temperature constant is the melting point of the sample. [1] A more modern method uses dedicated equipment, known as a melting point apparatus. A slow heating rate at the melting point is needed in order to get an accurate measurement.
[4] [5] The integration of microscope and Kofler bench is known as the Kofler hot stage microscope. [ 6 ] Kofler, his wife Adelheid, and their colleague, Maria Kuhnert-Brandstätter , investigated numerous organic molecules, and published some 250 papers describing their work.
The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.
Principle of a group-contribution method. The Joback method is a group-contribution method.These kinds of methods use basic structural information of a chemical molecule, like a list of simple functional groups, add parameters to these functional groups, and calculate thermophysical and transport properties as a function of the sum of group parameters.