Acethydrazide Chemical Properties Melting point 58-68 °C(lit.) Boiling point 129 °C18 mm Hg(lit.) density 1.0968 (rough estimate) refractive index 1.4264 (estimate) Fp >230 °F storage temp. Flammables area form Moist Crystals and Chunks color White Water Solubility soluble Sensitive Hygroscopic