Pressure and Temperature Study of Nitric Acid by Raman Spectroscopy.

Abstract

The present communication reports Raman spectroscopy in the 193K to 293 K temperature and 0.1 MPa to 50 GPa pressure range of pure anhydrous and hydrated nitric acid (69 w%). The main result is the autoionisation of pure nitric acid at high pressure. [nitric acid, Raman spectroscopy, autoionisation, high pressure, low temperature]