1,4-Dichlorobutane Chemical Properties Melting point -38 °C Boiling point 161-163 °C(lit.) density 1.16 g/mL at 25 °C(lit.) vapor pressure 5 hPa (20 °C) refractive index n20/D 1.454(lit.) Fp 104 °F storage temp. 2-8°C solubility 2.4g/l form Liquid color Clear