Phenanthrene, a polycyclic aromatic hydrocarbon, possesses several physical properties:
- Appearance: Phenanthrene typically appears as colorless to pale yellow crystals or a white powder.
- Odor: It has a distinctive aromatic odor.
- Melting Point: The melting point of phenanthrene is around 97.5°C (207.5°F).
- Boiling Point: Phenanthrene has a boiling point of approximately 340°C (644°F).
- Solubility: It is sparingly soluble in water but soluble in organic solvents such as ethanol, ether, benzene, and chloroform.
- Density: The density of phenanthrene is approximately 1.178 g/cm³.
- Molecular Weight: The molecular weight of phenanthrene is 178.23 g/mol.
- Flammability: Phenanthrene is combustible and can burn with a sooty flame when exposed to a sufficient heat source.
These physical properties contribute to the characterization and handling of phenanthrene in various industrial, research, and analytical settings.