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Specs ⸢ View details ⸥
Chinese name
氢溴酸
English name
bromane
Chinese alias
溴氢酸
English alias
Broomwaterstof | bromane | Acide bromhydrique | Acido bromhidrico | Hydrogen bromide (HBr) | Acido bromidrico | Anhydrous hydrobromic acid | Bromwasserstoff | hydrobromide | Hydrogen monobromide | Bromowodor [Polish] | Hydrogen bromide
CAS number
10035-10-6
molecular formula
BrH
molecular weight
80.91
Exact mass
AR
PSA
0.000 Ų
Logp
1
Safety
- DOT Label： Poison Gas Corrosive
- First Aid： Swallow: Medical attention immediately (solution)
- 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.
- AEGLs Notes： AEGLs Status: Final
- AEGLs Table： 8 hr: 15
- Fire Hazards： Not combustible. Heating will cause rise in pressure with risk of bursting. Risk of fire and explosion on contact with metals as a result of hydrogen formation.
- Safe Storage： Separated from incompatible materials. See Chemical Dangers. Cool. Dry. Ventilation along the floor.
- Fire Fighting： In case of fire in the surroundings, use appropriate extinguishing media. In case of fire: keep cylinder cool by spraying with water. NO direct contact with water.
- Target Organs： Eyes, skin, respiratory system
- Toxicity Data： LD50: 76 mg/kg (Intraperitoneal, Rat) (L651) LC50: 2858 ppm over 1 hour (Inhalation, Rat) (T14)
- Eye Prevention： Wear eye protection in combination with breathing protection.
- Fire Potential： Not combustible. Heating will cause rise in pressure with risk of bursting.
- 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)
- Health Hazards： ERG2024, Guide 125 (Hydrogen bromide, anhydrous): · Runoff from fire control or dilution water may cause environmental contamination.
- OSHA Standards： Permissible Exposure Limit: Table Z-1 8-Hr Time Weighted Avg: 3 ppm (10 mg/cu m).
- Reactive Group： Acids, Strong Non-oxidizing
- Adverse Effects： Fibrogenic - Inducing tissue injury and fibrosis (scarring).
- Cleanup Methods： Stop or control the leak, if this can be done without undue risk. Absorb in noncombustible material for proper disposal. /Hydrobromic acid solution/
- Exposure Routes： Oral (L626); inhalation (L626); dermal (L626)
- Hazards Summary： Aqueous hydrogen bromide = Hydrobromic acid; [NIOSH] Skin contact with acid solutions may cause burns. HBr, compared to HCl, is more toxic to rats, and considerably more toxic to mice in acute inhalation studies. [ACGIH] Highly corrosive to skin; [Quick CPC] Possible frostbite from contact with liquid; [NIOSH] A corrosive substance that can cause pulmonary edema; [ICSC] The following chemicals can release HBr when spilled in water: Boron tribromide, Phosphorus pentabromide, Acetyl bromide, and Aluminum bromide. [ERG 2016] See the Process, Toxic Gas from Spilling Chemical in Water. Hydrogen bromide is fibrogenic to the lungs in the context of an acute inhalation exposure complicated by bronchiolitis obliterans.
- Inhalation Risk： A harmful concentration of this gas in the air will be reached very quickly on loss of containment.
- Skin Prevention： Cold-insulating gloves. Protective clothing.
- DOT ID and Guide： 1788 154(solution)
- Disposal Methods： Product: Offer surplus and non-recyclable solutions to a licensed disposal company. Contact a licensed professional waste disposal service to dispose of this material; Contaminated packaging: Dispose of as unused product.
- Flammable Limits： Flammability: Nonflammable Gas
- Physical Dangers： The gas is heavier than air.
- 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)
- EC Classification： Symbol: C; R: 35-37; S: (1/2)-7/9-26-45
- RCRA Requirements： D002; A solid waste containing hydrobromic acid may become characterized as a hazardous waste when subjected to testing for corrosivity as stipulated in 40 CFR 261.21, and if so characterized, must be managed as a hazardous waste.
- Reactivity Alerts： Known Catalytic Activity
- Spillage Disposal： Evacuate danger area! Consult an expert! Personal protection: gas-tight chemical protection suit including self-contained breathing apparatus. Ventilation. NEVER direct water jet on liquid. Remove gas with fine water spray.
- UN Classification： UN Hazard Class: 2.3; UN Subsidiary Risks: 8
- First Aid Measures： Eye First Aid: First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.
- Reactivity Profile： HYDROGEN BROMIDE is an anhydrous (no water) strong acid. Reacts rapidly and exothermically with bases of all kinds (including amines and amides). Reacts exothermically with carbonates (including limestone and building materials containing limestone) and hydrogen carbonates to generate carbon dioxide. Reacts with sulfides, carbides, borides, and phosphides to generate toxic or flammable gases. Reacts with many metals (including aluminum, zinc, calcium, magnesium, iron, tin and all of the alkali metals) to generate flammable hydrogen gas. Reacts violently with acetic anhydride, 2-aminoethanol, ammonium hydroxide, calcium phosphide, chlorosulfonic acid, 1,1-difluoroethylene, ethylenediamine, ethyleneimine, oleum, perchloric acid, b-propiolactone, propylene oxide, silver perchlorate/carbon...
- Signs and 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)
- Storage Conditions： Store in a cool, dry, well-ventilated location. Separate from alkalies, oxidizing materials, amines, halogens, and metals. /Hydrobromic acid solution/
- Exposure Prevention： AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!
- Ingestion Prevention： Do not eat, drink, or smoke during work.
- Inhalation Prevention： Use ventilation, local exhaust or breathing protection.
- NIOSH Recommendations： Recommended Exposure Limit: Ceiling Value: 3 ppm (10 mg/cu m).
- Hazards Identification： ERG Hazard Classes: Toxic/poison by inhalation (TIH/PIH)
- Nonfire Spill Response： Do not touch or walk through spilled material. Stop leak if you can do it without risk. If possible, turn leaking containers so that gas escapes rather than liquid. Prevent entry into waterways, sewers, basements or confined areas. Do not direct water at spill or source of leak. Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material. Isolate area until gas has dispersed. (ERG, 2024)
- Air and Water Reactions： Acrid odor, fumes in moist air forming clouds containing hydrobromic acid. Heat of solution large, [Merck, 11th ed., 1989].
- Effluent Concentrations： Hydrogen bromide was not detected in emissions from combustion of mixed plastics with coal in a bubbling fluidized bed boiler(1). The compound is formed and released as a result of high heating of electronic circuit boards containing brominated flame retardants(2).
- CSL Reaction Information： Create Date: 10/15/2022
- Isolation and Evacuation： Protection: - PROTECT people from downwind during NIGHT time: 3.2 km (2.0 mi)
- Other Safety Information： Chemical Assessment: IMAP assessments - Hydrobromic acid: Human health tier I assessment
- Carcinogen Classification： No indication of carcinogenicity to humans (not listed by IARC).
- DOT Hazard Classification： Placard/Label(s)
- Natural Pollution Sources： Hydrogen bromide is found in gases from volcanoes(1).
- Non-Human Toxicity Values： LC50 Mouse inhalation 814 ppm/1 hr
- Other Hazardous Reactions： Work with liquid hydrogen bromide under pressure in glass at or above room temp should be avoided, as chemical attack, possibly intergranular and not obvious, can lead to unexpected shattering.
- Atmospheric Concentrations： Airborne hydrogen bromide concentrations ranged from less than the detection limit (0.01 ppm) to 0.11 ppm in a monitoring study for airborne vapors during structural foam molding of ignition resistant high impact polystyrene. Hydrogen bromide gas is the primary decomposition product of concern from the flame retardant system(1).
- EPA Hazardous Waste Number： D002; A waste containing hydrobromic acid may (or may not) be characterized a hazardous waste following testing for corrosivity characteristics as prescribed by the Resource Conservation and Recovery Act (RCRA) regulations.
- Highly Hazardous Substance： OSHA Highly Hazardous Chemicals, Toxics and Reactives: Note: Hydrogen Bromide in quantities at or above above 5000lb presents a potential for a catastrophic event as a toxic or reactive highly hazardous chemical.
- Respirator Recommendations： Important additional information about respirator selection
- Accidental Release Measures： Spill or Leak: ERG2024, Guide 125 (Hydrogen bromide, anhydrous): · Isolate area until gas has dispersed.
- Non-Human Toxicity Excerpts： /LABORATORY ANIMALS: Acute Exposure/ Evaluation and measurement of burns caused by application of hydrogen bromide (HBr), hydrogen iodide (HI) and hydrogen chloride (HCl) to rat skin. HBr causes more severe burns to rat skin than HCl or HI.
- Artificial Pollution Sources： Hydrogen bromide's production and use in the manufacture of other bromine compounds, chemical reagent and catalyst(1) may result in its release to the environment through various waste streams(SRC).
- Threshold Limit Values (TLV)： TLV-C (Ceiling): 2 ppm [2001]
- Hazard Classes and Categories： Skin Corr. 1A
- Effects of Short Term Exposure： The substance is corrosive to the eyes, skin and respiratory tract. Inhalation of this gas may cause lung oedema. Rapid evaporation of the liquid may cause frostbite.
- Standard Transportation Number： 49 302 27; Hydrobromic acid, (more than 49% strength)
- DHS Chemicals of Interest (COI)： Security Issue: Theft - WME: Weapons of Mass Effect chemical material that, if stolen or diverted, can be converted into weapons using simple chemistry, equipment, or techniques.
- Permissible Exposure Limit (PEL)： TWA 3 ppm (10 mg/m3) See Appendix G
- Protective Action Criteria (PAC)： PAC-3: 120 [ppm]
- Recommended Exposure Limit (REL)： C 3 ppm (10 mg/m3)
- Shipment Methods and Regulations： The International Maritime Dangerous Goods Code lays down basic principles for transporting hazardous chemicals. Detailed recommendations for individual substances and a number of recommendations for good practice are included in the classes dealing with such substances. A general index of technical names has also been compiled. This index should always be consulted when attempting to locate the appropriate procedures to be used when shipping any substance or article. Hydrogen bromide, anhydrous is included on the dangerous goods list. /Hydrogen bromide, anhydrous/
- Critical Temperature and Pressure： Critical temperature: 363.2 K; critical pressure: 8.55 MPa
- Probable Routes of Human Exposure： NIOSH (NOES Survey 1981-1983) has statistically estimated that 20,571 workers (5,398 of these are female) were potentially exposed to hydrogen bromide in the US(1).
- Occupational Exposure Limits (OEL)： MAK (Maximale Arbeitsplatz Konzentration): 6.7 mg/m
- Shipping Name/ Number DOT/UN/NA/IMO： IMO 2.3; Hydrogen bromide, anhydrous
- Emergency Response Planning Guidelines： Emergency Response: ERG2024, Guide 125 (Hydrogen bromide, anhydrous): · ALWAYS stay away from tanks in direct contact with flames.
- Skin, Eye, and Respiratory Irritations： The vapors of hydrogen bromide are severely irritating to the mucous membranes of the eyes and nose.
- Exposure Control and Personal Protection： Maximum Allowable Concentration (MAK): 2.0 [ppm]
- Other Standards Regulations and Guidelines： Australia: peak limitation 3 ppm (1990); Federal Republic of Germany: 5 ppm, short-term level 10 ppm, 5 min, 8 times per shift (1991); United Kingdom: 10-min STEL 3 ppn (1991).
- Immediately Dangerous to Life or Health (IDLH)： See: 10035106
Technical Documents
Related
upstream information
Methods of Manufacturing：
Hydrogen bromide (CID:260); platinum sponge (CID:23939); water (CID:962); sodium bromide (CID:253881); sulfuric acid (CID:1118); phosphorous acid (CID:107909); 1,2,3,4-tetrahydronaphthalene (CID:22117780); sulfur dioxide (CID:1119)
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bromoacid pure/500mlnon box
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