Diethylenetriamine Chemical Properties Melting point -40 °C Boiling point 206 °C density 0.955 g/mL at 25 °C(lit.) vapor density 3.6 (vs air) vapor pressure 0.08 mm Hg ( 20 °C) refractive index n20/D 1.484(lit.) Fp 90 °C storage temp. Store below +30°C. form Liquid