# Does carbon tetrachloride have a high melting point? Why or why not?

The melting point of $\text{carbon tetrachloride}$ is listed here as $- 22$ ""^@C, and its normal boiling point is $76.7$ ""^@C.
For a fairly high molecular mass molecule these values are fairly low. These low physical constants reflect the fact that (i) carbon tetrachloride is molecular; and (ii) there are only weak dispersion forces that operate between molecules. While the individual $C - C l$ bonds are polar, $\text{carbon tetrachloride}$ is necessarily a tetrahedral molecule in which the ${C}^{\delta +} - C {l}^{\delta -}$ dipoles sum to ZERO; and thus there is no molecular dipole moment to act as an intermolecular force. Only dispersion forces operate here.