Triacetin Chemical Properties Melting point 3 °C(lit.) Boiling point 258-260 °C(lit.) density 1.16 g/mL at 25 °C(lit.) vapor density 7.52 (vs air) refractive index n25/D 1.429-1.431(lit.) FEMA 2007 | (TRI-)ACETIN Fp 300 °F solubility Soluble in water, miscible with ethanol (96 per cent) and toluene. form Liquid color Clear colorless