Pressure Vessel (Autoclave) (IMAGE) University of Münster Caption Pressure vessel (autoclave) for the hydrogenation of fluorinated pyridines. The reactions are carried out at a hydrogen pressure of 50 bar (normal atmospheric pressure is 1 bar). Credit Frank Glorius Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.