Colorless, odorless gas. Radioactive.
Bombarding particle in cyclotrons, activator in self-luminous phosphors, in cold cathode tubes, tracer in biochemical research and various special problems in chemical analysis, luminous instrument dials, thermonuclear power research.
Registry Numbers and Inventories.
Melting point, °C
Boiling point, °C
Hazards and Protection.
Keep sealed, away from non-protected areas. Follow approved radiation safety plan.
Follow approved radiation safety plan.
Beta radiation do not allow contaminated water to come in contact with skin or personal clothing. Wear waterproof protection. If the radioactivity is also airborne, a mask with air filter may be required.
Wear radionuclide cartridge respirator.
Evacuate area and contact radiation safety officer.
Stable at normal temperatures and pressures in a sealed container.
Strong oxidizing agents.
Radioactive tritium containing compounds.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire.
Supralethal radiation doses may result in headache, acute brain syndrome, alterations in mental status including coma, and (rarely) seizures within minutes of exposure. Prenatal ionizing radiation exposure may cause congenital anomalies, mental retardation, and an increased incidence of seizures.
Gastrointestinal syndrome (nausea/vomiting) commonly occurs after doses of 9 to 20 gy and may occur following doses as low as 5 gy. Initial vomiting is followed by persistent diarrhea, which may be bloody.
Pulmonary radiation injury may result in radiation pneumonitis and radiation pulmonary fibrosis.
Thermonuclear burns may occur. If erythema is produced by a penetrating radiation, serious systemic injury is certain.
Seek medical attention. If individual is drowsy or unconscious, do not give anything by mouth; place individual on the left side with the head down. Contact a physician, medical facility, or poison control center for advice about whether to induce vomiting. If possible, do not leave individual unattended.
Monitoring exposed patients for contamination and decontamination procedures should be started. All personnel involved in handling patients should wear disposable protective clothing. The patient should be completely undressed and given a soap and water bath or shower (if the patient's condition permits and if the facility exists). Acute inhalation of radionuclides presents some difficult problems.
Remove contaminated clothing. Wash exposed area with soap and water. If symptoms persist, seek medical attention. Launder clothing before reuse.
If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention.