Why does calcium fluoride have high melting and boiling points


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Calcium flouride has higher melting point than calcium iodide why?

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Calcium Fluoride has high melting point than Calcium Iodide because of these factors which affect melting point.


1. Size of the molecule

Melting point is also used for the identification and characterisation of a compound. If the melting point of two pure samples shows a clear difference in melting points, it indicates that the two compounds must have different structural arrangements. or they must have different arrangements of atoms or configurations. If two materials have the same melting point, then they may (not necessarily) have the same structure.

2. Force of attraction between the molecules

The force of attraction between the molecules affects the melting point of a compound. Stronger intermolecular interactions result in higher melting points. Ionic compounds usually have high melting points because the electrostatic forces holding the ions (ion-ion interaction) are much stronger. In organic compounds the presence of polarity, or especially hydrogen bonding, generally leads to higher melting point.


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