Dibutyl maleate Chemical Properties Melting point -85°C Boiling point 281 °C(lit.) density 0.988 g/mL at 25 °C(lit.) vapor pressure 0.0027 hPa (20 °C) refractive index n20/D 1.445(lit.) Fp >230 °F storage temp. Store below +30°C. solubility 0.17g/l slightly soluble form Liquid color Clear colorless to light yellow explosive limit 0.5-3.4%(V) Water Solubility insoluble FreezingPoint <-85℃