Melting point 145-147 C (lit.) boiling point 238 C density 1302 g/cm3 Vapor density > 1(vsair) refractive index 1.5769 (estimate) Flash point 238 C Storage conditions Keep in dark place Sealed in dry, Room Temperature Solubility H2O: 10 mg/mL, the clear Acidity coefficient (pKa) 13.37 ±0.50 Form Powder, Crystalsand/orChunks Color White to light yellow