Table 1 Chemical and physical properties of anthraquinone

Chemical structure

Chemical name

Anthraquinone; 9,10-anthraquinone

Molecular formula

C₁₄H₈O₂

CAS No

84-65-1

Molecular weight

208.21

Boiling point

377 °C at 760 mmHg

Melting point

286 °C

Density/specific gravity

1.42–1.44 at 20 °C/4 °C

Octanol/water partition coefficient

log Kow = 3.39

Solubilities

0.44 g/100 g alcohol at 25 °C; 2.25 g/100 g boiling alcohol; 0.11 g/100 g ether at 25 °C; 0.61 g/100 g chloroform at 20 °C; 0.26 g/100 g benzene at 20 °C; 0.30 g/100 g toluene at 25 °C; soluble in concentrated sulfuric acid; soluble in acetone; 1.353 mg/L at 25 °C water