Data is derived from NIOSH’s Emergency Response Safety and Health Database CHLORINE (UN 1017) CAS #: 7782-50-5 RTECS #: FO2100000 UN #: 1017 (Guide 124) Common Names: Molecular chlorine Agent Characteristics APPEARANCE: Greenish-yellow gas at room temperature; clear, amber-colored liquid under increased pressure or at temperatures below -30°F (-34°C). DESCRIPTION: Chlorine is a toxic gas...