what is the color of caffeine
Pure anhydrous caffeine is a white odorless powder with a melting point of 235â238 Â°C. Caffeine is moderately soluble in water at room temperature (2 g/100 mL), but very soluble in boiling water (66 g/100 mL). It is also moderately soluble in ethanol (1.5 g/100 mL).