Physical Properties of Haloarenes

1. Boiling points

The boiling points of monohalogen derivatives of benzene, which are all liquids, follow the order

Iodo > Bromo > Chloro

The boiling points of isomeric dihalobenzenes are nearly the same. However, their melting points are quite different. The melting point of para isomer is generally 70-100 degrees higher than the melting points of ortho and meta isomers. The higher melting point of para isomer is due to its symmetry which leads to more close packing of its molecules in the crystal lattice and consequently strong intermolecular attractive forces.

Boiling point:    453 K              446 K            448 K
Melting point:   256 K              249 K            323 K

2. Solubility

Haloarenes are insoluble in water, acids or bases but are soluble in organic solvents.

Haloarenes are insoluble in water because they cannot form hydrogen bonds with water molecules.

3. Density

These are all heavier than water. Their densities follow the order.

Iodo > Bromo > Chloro.

Services: - Physical Properties of Haloarenes Homework | Physical Properties of Haloarenes Homework Help | Physical Properties of Haloarenes Homework Help Services | Live Physical Properties of Haloarenes Homework Help | Physical Properties of Haloarenes Homework Tutors | Online Physical Properties of Haloarenes Homework Help | Physical Properties of Haloarenes Tutors | Online Physical Properties of Haloarenes Tutors | Physical Properties of Haloarenes Homework Services | Physical Properties of Haloarenes