化合物详情

CAS7789-30-2
分子式BrF5
分子量174.9 g/mol
危化品

Physical Description | Bromine pentafluoride appears as a colorless, fuming liquid with a pungent odor. Used to make other chemicals and in rockets. Very toxic by inhalation. Corrosive to metals and tissue. Will accelerate the burning of combustible material. If the containers are involved in a fire they may rupture violently and rocket.

科学粮草官-词典编辑部,修订于:2026-07-06

化合物详情

Toxicity

Toxicity
19
Fate Summary
ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile organic compounds in the atmosphere(1), bromine pentafluoride, which has a vapor pressure of 406 mm Hg at 25 °C(2), is expected to exist solely as a vapor in the ambient atmosphere. Bromine pentafluoride is a relatively heavy vapor with a vapor density 6.05 times that of air(3). Bromine pentafluoride explodes and decomposes on contact with water to yield hydrofluoric acid and other materials(4). It fumes in air(5), reacts with steam, and decomposes on contact with hydrogen-containing materials(3).
Soil Adsorption / Mobility
Bromine pentafluoride decomposes, sometimes explosively, on contact with water(1). It also explodes or ignites on contact with hydrogen-containing materials (e.g. acetic acid, ammonia, benzene, ethanol, hydrogen, hydrogen sulfide, methane cork, grease, paper, wax)(2).
Environmental Bioconcentration
Bromine pentafluoride decomposes, sometimes explosively, on contact with water to yield hydrofluoric acid and other materials(1). Therefore, bioconcentration in fish is not expected to be an important fate process(SRC).
Volatilization from Water / Soil
Bromine pentafluoride decomposes, sometimes explosively, on contact with water to yield hydrofluoric acid and other materials(1). Therefore, volatilization from water is not expected to be an important fate process(SRC).
Environmental Abiotic Degradation
Bromine pentafluoride decomposes, sometimes explosively, on contact with water to yield hydrofluoric acid and other materials(1). It also explodes or ignites on contact with hydrogen-containing materials (e.g. acetic acid, ammonia, benzene, ethanol, hydrogen, hydrogen sulfide, methane cork, grease, paper, wax)(2).
Artificial Pollution Sources
Bromine pentafluoride's production and use as a fluorinating agent in uranium processing and as the oxidizer component of some rocket propellants(1) may result in its release to the environment through various waste streams(SRC).
Probable Routes of Human Exposure
Occupational exposure to bromine pentafluoride may occur through inhalation and dermal contact with this compound at workplaces where bromine pentafluoride is produced or used. (SRC)
Environmental Fate / Exposure Summary
Bromine pentafluoride's production and use as a fluorinating agent in uranium processing and as the oxidizer component of some rocket propellants may result in its release to the environment through various waste streams. If released to air, a vapor pressure of 406 mm Hg at 25 °C indicates bromine pentafluoride will exist solely as a vapor in the atmosphere. Bromine pentafluoride is a relatively heavy vapor with a vapor density 6.05 times that of air. Therefore, if released in the atmosphere, it may tend to remain close to the ground and be transported to soil by wet deposition. Bromine pentafluoride decomposes on contact with water, sometimes explosively, to yield hydrofluoric acid and other materials. It fumes in air, reacts with steam, and decomposes on contact with hydrogen-containi...
Symptoms
Bromine vapour causes irritation and direct damage to the mucous membranes. Symptoms include lacrimation, rhinorrhoea, eye irritation with mucous secretions from the oropharyngeal and upper airways, coughing, dyspnoea, choking, wheezing, epistaxis, and headache. The bromide ion is a central nervous system depressant producing ataxia, slurred speech, tremor, nausea, vomiting, lethargy, dizziness, visual disturbances, unsteadiness, headaches, impaired memory and concentration, disorientation and hallucinations. This is called bromism. (L626, L627)
Treatment
EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.
Target Organs
Eyes, skin, respiratory system, liver, kidneys
Health Effects
Bromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (L625, L626, L627)
Adverse Effects
Toxic Pneumonitis - Inflammation of the lungs induced by inhalation of metal fumes or toxic gases and vapors.
Exposure Routes
Oral (L626); inhalation (L626); dermal (L626)
Toxicity Summary
Bromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (L626, L627, A543)
Human Toxicity Excerpts
/OTHER TOXICITY INFORMATION/ ...use of BrF5 and BrF3 in the synthesis of uranium hexafluoride suggests the possibility of coexposure to bromine and uranium fluorides in the context of accidental releases. As HF is a hydrolysis product of both the bromine fluorides and uranium hexafluoride, coexposure to these compounds might lead to greater toxicity due to higher levels of the reaction product HF.
Carcinogen Classification
No indication of carcinogenicity to humans (not listed by IARC).
Populations at Special Risk
Individuals with asthma may respond to exposure to respiratory irritants with increased bronchial responsiveness. The elderly and those who are ill may also have increased susceptibility to the effects of irritants. Individuals under stress, such as those involved in emergency situations and individuals engaged in physical activity, will experience greater deposition and pulmonary irritation than individuals at rest. Furthermore, individuals who breathe through their mouths would be at greater risk.
Antidote and Emergency Treatment
Advanced treatment: Consider orotracheal or nasotracheal intubation for airway control in the patient who is unconscious, has severe pulmonary edema, or is in severe respiratory distress. Positive-pressure ventilation techniques with a bag valve mask device may be beneficial. Consider drug therapy for pulmonary edema ... . Consider administering a beta agonist such as albuterol for severe bronchospasm ... . Monitor cardiac rhythm and treat arrhythmias if necessary ... . Start IV administration of D5W /SRP: "To keep open", minimal flow rate/. Use 0.9% saline (NS) or lactated Ringer's (LR) if signs of hypovolemia are present. For hypotension with signs of hypovolemia, administer fluid cautiously. Consider vasopressors if patient is hypotensive with a normal fluid volume. Watch for signs o...
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