Delivered in a glass bottle: ACS reagent vapor density: 7.14 (vs air) vapor pressure: 175 mmHg ( 20 å¡C) and 671 mmHg ( 55 å¡C) assay: ‰ä´99.5% resistivity: 7.8E18 ë_ë©-cm, 20å¡C impurities: organic bromine compounds, passes test