Imidazole

Melting point  88-91 °C(lit.)

Boiling point  256 °C(lit.)

density  1.01 g/mL at 20 °C

vapor pressure  <1 mm Hg ( 20 °C)

refractive index  1.4801 

Fp  293 °F

storage temp.  2-8°C

solubility  H2O: 0.1 M at 20 °C, clear, colorless

pka 6.953(at 25℃) 

form  crystalline

color  white

Specific Gravity 1.03 

Odor Amine like 

PH Range 9.5 - 11 

PH 9.5-11.0 (25℃, 50mg/mL in H2O) 

Water Solubility  633 g/L (20 ºC)