Phosphoric Acid CAS 7664-38-2

appearance and properties: colorless transparent or slightly light color thick liquid, pure phosphoric acid for colorless crystals, odorless, with a sour taste.
melting point (℃): 42.35 (pure)
boiling point (℃): 261

relative density 1.70
relative density (water = 1): 1.87 (pure)
relative vapor density (Air = 1): 3.38
saturated vapor pressure (kPa): 0.67(25 ℃, pure)
solubility: miscible with water, miscible with ethanol.