Hydrogen bromide

80.91

79.926

233-113-0

3IY7CNP8XJ

0282

1048|1788

DTXSID0029713

Colorless gas|Colorless gas [Note: Shipped as a liquified compressed gas]

2811199090

0

1

Light yellow, brown Solution

1.8 g/cm³

-87 °C

-67 °C

40°C

n20/D 1.438

soluble

Refrigerator

334.7 psi ( 21 °C)

2.8 (vs air)

Inhalation-rat LC50: 2858 PPM/1 hour; inhalation-mouse LC50: 814 PPM/1 hour

In case of H, the pore-forming agent is flammable; in case of cyanide, it emits toxic hydrogen cyanide gas; when heated, it decomposes toxic bromide gas

Sharp, irritating odor

Fumes have a sour taste

Aqueous solutions are strongly acidic

Henry's law constant: 1.32X10+9 mol/L atm (7.58X10-13 cu m atm/mol) /Hydrobromic acid/

Boiling point: -4.8 °C at 11.0 atm; 12 °C at 17.1 atm; 36 °C at 30.0 atm; 70 °C at 59.2 atm; specific heat (cal/g °C): 0.152 at -91 °C (solid); 0.176 (liquid); 0.085 at 27 °C (gas); heat of fusion at melting point: 7.44 cal/g; saturated solution contains 68.85% HBr at 0 °C and 66% at 25 °C. Critical temperature: 89.8 °C; critical pressure: 84.5 atm|Conversion factor: 1 ppm = 3.31 mg/cu m

Acrid odor, fumes in moist air forming clouds containing hydrobromic acid. Heat of solution large, [Merck, 11th ed., 1989].

Acids, Strong Non-oxidizing

Known Catalytic Activity

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 tetrachloride mixture, sodium hydroxide, uranium(IV) phosphide, vinyl acetate, calcium carbide, rubidium carbide, cesium acetylide, rubidium acetylide, magnesium boride, mercury(II) sulfate, calcium phosphide, calcium carbide.

11.62 eV

Nonflammable Gas

The gas is heavier than air.

Corrosive

51.3 cal/g at boiling point

Critical temperature: 363.2 K; critical pressure: 8.55 MPa

II

8

UN 3265 8/PG 2

1

35-37-34-10-36/37/38

26-45-7/9-36/37/39

MW3850000

C,Xi

The warehouse is ventilated, low-temperature and dry; store it separately from cyanide, H pore-forming agent and alkali.

Explosive when mixed with air

Yellow color slowly darkens on exposure to air and light.

P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P403+P233, P405, P501

H314

Generators of waste (equal to or greater than 100 kg/mo) containing this contaminant, EPA hazardous waste number D002, must conform with USEPA regulations in storage, transportation, treatment and disposal of waste.|SRP: Wastewater from contaminant suppression, cleaning of protective clothing/equipment, or contaminated sites should be contained and evaluated for subject chemical or decomposition product concentrations. Concentrations shall be lower than applicable environmental discharge or disposal criteria. Alternatively, pretreatment and/or discharge to a permitted wastewater treatment facility is acceptable only after review by the governing authority and assurance that "pass through" violations will not occur. Due consideration shall be given to remediation worker exposure (inhalation, dermal and ingestion) as well as fate during treatment, transfer and disposal. If it is not practicable to manage the chemical in this fashion, it must be evaluated in accordance with EPA 40 CFR Part 261, specifically Subpart B, in order to determine the appropriate local, state and federal requirements for disposal.|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.

Incompatible materials: Strong oxidizing agents, Strong bases, Ammonia, Ozone, Halogens, Amines, Gives off hydrogen by reaction with metals.|The aqueous solution is a strong acid. Violent reaction with strong oxidizers, strong caustics, and many organic compounds causing fire and explosion hazard. Reacts with water forming hydrobromic acid. Incompatible with aliphatic amines, alkanolamines, alkylene oxides, aromatic amines, amides, ammonia, ammonium hydroxide, calcium oxide, epichlorohydrin, fluorine, isocyanates, oleum, organic anhydrides, sulfuric acid, sodium tetrahydroborate, vinyl acetate. Hydrobromic acid is highly corrosive to most metals forming flammable hydrogen.|The reaction of fluorine with gaseous or aqueous hydrobromic acid is accompanied by flame.|Reacts violently with F2, FE2O3, HN3, O3.|For more Hazardous Reactivities and Incompatibilities (Complete) data for Hydrogen bromide (8 total), please visit the HSDB record page.

Behavior in Fire: Pressurized container may explode and release toxic, irritating vapor. (USCG, 1999)|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.

|Danger|H314: Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]|P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P403+P233, P405, and P501|H280 (18.25%): Contains gas under pressure; may explode if heated [Warning Gases under pressure]|P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P311, P312, P321, P363, P403+P233, P405, P410+P403, and P501|Aggregated GHS information provided by 560 companies from 31 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|H280: Contains gas under pressure; may explode if heated [Warning Gases under pressure]|P260, P261, P264, P270, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P310, P311, P314, P321, P363, P403+P233, P405, P410+P403, and P501|P260, P261, P264, P270, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P310, P311, P314, P321, P363, P403+P233, P405, and P501

Excerpt from ERG Guide 125 [Gases - Corrosive]: As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. SPILL: See ERG Table 1 - Initial Isolation and Protective Action Distances on the UN/NA 1048 datasheet. FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 1600 meters (1 mile) in all directions; also, consider initial evacuation for 1600 meters (1 mile) in all directions. (ERG, 2016)

Excerpt from ERG Guide 125 [Gases - Corrosive]: Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. 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, 2016)

Skin: If chemical is in solution, wear appropriate personal protective clothing to prevent skin contact and to prevent skin from becoming frozen from contact with the liquid or from contact with vessels containing the liquid. Eyes: If the chemical is in solution, wear appropriate eye protection to prevent eye contact with the liquid that could result in burns or tissue damage from frostbite. Wash skin: If the chemical is in solution, the worker should immediately wash the skin when it becomes contaminated. Remove: If chemical is in solution, work clothing that becomes wet or significantly contaminated should be removed and replaced. Change: No recommendation is made specifying the need for the worker to change clothing after the work shift. Provide: Eyewash fountains should be provided (when chemical is in liquid form) in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. Facilities for quickly drenching the body should be provided (when chemical is in solution) within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] Quick drench facilities and/or eyewash fountains should be provided within the immediate work area for emergency use where there is any possibility of exposure to liquids that are extremely cold or rapidly evaporating. (NIOSH, 2016)|Eye/face protection: Tightly fitting safety goggles. Faceshield (8-inch minimum). Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU).|Skin protection: Handle with gloves.|Body Protection: Complete suit protecting against chemicals. The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.|Respiratory protection: Where risk assessment shows air-purifying respirators are appropriate use a full-face respirator with multipurpose combination (US) or type ABEK (EN 14387) respirator cartridges as a backup to engineering controls. If the respirator is the sole means of protection, use a full-face supplied air respirator. Use respirators and components tested and approved under appropriate government standards such as NIOSH (US) or CEN (EU).|For more Personal Protective Equipment (PPE) (Complete) data for Hydrogen bromide (15 total), please visit the HSDB record page.|(See protection codes)

Not combustible. Heating will cause rise in pressure with risk of bursting.

Suitable extinguishing media: Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide.|Advice for firefighters: Wear self-contained breathing apparatus for firefighting if necessary.|Use water spray to cool unopened containers.|Extinguish fire using agent suitable for surrounding fire. Use flooding quantities of water. Use water spray to keep fire-exposed containers cool. Approach fire from upwind to avoid hazardous vapors. /Hydrobromic acid solution/|For more Fire Fighting Procedures (Complete) data for Hydrogen bromide (6 total), please visit the HSDB record page.

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.|ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Wear respiratory protection. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains. Methods and materials for containment and cleaning up: Clean up promptly by sweeping or vacuum.|Stop or control the leak, if this can be done without undue risk. Absorb in noncombustible material for proper disposal. /Hydrobromic acid solution/

Wear protective gloves and clothing to prevent any reasonable probability of skin contact. Safety equipment suppliers/manufacturers can provide recommendations on the most protective glove/clothing material for your operation. All protective clothing (suits, gloves, footwear, headgear) should be clean, available each day, and put on before work. Contact lenses should not be worn when working with this chemical. Wear eye protection to prevent any possibility of eye contact. Wear splash-proof chemical goggles and face shield when working with the liquid unless full face-piece respiratory protection is worn. Employees should wash immediately with soap when skin is wet or contaminated. Provide emergency showers and eyewash.|ACCIDENTAL RELEASE MEASURES: Personal precautions, protective equipment and emergency procedures: Wear respiratory protection. Avoid breathing vapors, mist or gas. Ensure adequate ventilation. Evacuate personnel to safe areas. Environmental precautions: Prevent further leakage or spillage if safe to do so. Do not let product enter drains.|Precautions for safe handling: Avoid contact with skin and eyes. Avoid inhalation of vapor or mist.|Appropriate engineering controls: Avoid contact with skin, eyes and clothing. Wash hands before breaks and immediately after handling the product.|For more Preventive Measures (Complete) data for Hydrogen bromide (13 total), please visit the HSDB record page.

If ... THERE IS NO FIRE, go directly to the Table of Initial Isolation and Protective Action Distances /(see table below)/ ... to obtain initial isolation and protective action distances. IF THERE IS A FIRE, or IF A FIRE IS INVOLVED, go directly to the appropriate guide /(see guide(s) below)/ and use the evacuation information shown under PUBLIC SAFETY. /Hydrogen bromide, anhydrous/|/GUIDE 125 GASES - CORROSIVE/ Fire or Explosion: Some may burn but none ignite readily. Vapors from liquefied gas are initially heavier than air and spread along ground. Some of these materials may react violently with water. Cylinders exposed to fire may vent and release toxic and/or corrosive gas through pressure relief devices. Containers may explode when heated. Ruptured cylinders may rocket. . For UN1005: Anhydrous ammonia, at high concentrations in confined spaces, presents a flammability risk if a source of ignition is introduced /Hydrogen bromide, anhydrous/|/GUIDE 125 GASES - CORROSIVE/ Health: TOXIC; may be fatal if inhaled, ingested or absorbed through skin. Vapors are extremely irritating and corrosive. Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution. /Hydrogen bromide, anhydrous/|/GUIDE 125 GASES - CORROSIVE/ Public Safety: CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number listed on the inside back cover. As an immediate precautionary measure, isolate spill or leak area for at least 100 meters (330 feet) in all directions. Keep unauthorized personnel away. Stay upwind, uphill and/or upstream. Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks). Ventilate closed spaces before entering. /Hydrogen bromide, anhydrous/|For more DOT Emergency Guidelines (Complete) data for Hydrogen bromide (17 total), please visit the HSDB record page.

No person may /transport,/ offer or accept a hazardous material for transportation in commerce unless that person is registered in conformance ... and the hazardous material is properly classed, described, packaged, marked, labeled, and in condition for shipment as required or authorized by ... /the hazardous materials regulations (49 CFR 171-177)./|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials. Hydrobromic acid is included on the dangerous goods list. /Hydrobromic acid/|The International Air Transport Association (IATA) Dangerous Goods Regulations are published by the IATA Dangerous Goods Board pursuant to IATA Resolutions 618 and 619 and constitute a manual of industry carrier regulations to be followed by all IATA Member airlines when transporting hazardous materials. Hydrogen bromide, anhydrous is included on the dangerous goods list. /Hydrogen bromide, anhydrous/|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/

Irritating to skin, eyes, and respiratory system. /Hydrobromic acid, solution/|Skin contact with the vapor or liquid causes severe tissue irritation. ...|The vapors of hydrogen bromide are severely irritating to the mucous membranes of the eyes and nose.

Permissible Exposure Limit: Table Z-1 8-Hr Time Weighted Avg: 3 ppm (10 mg/cu m).

Recommended Exposure Limit: Ceiling Value: 3 ppm (10 mg/cu m).

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.

Separated from incompatible materials. See Chemical Dangers. Cool. Dry. Ventilation along the floor.

A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

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.

AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR!

Use ventilation, local exhaust or breathing protection.

Cold-insulating gloves. Protective clothing.

Wear eye protection in combination with breathing protection.

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.

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.

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).

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).

moderately

IDENTIFICATION AND USE: Hydrogen bromide (HBr) is a colorless gas. It is utilized in the production of inorganic bromides and organic bromides, in reaction with alkynes to form bromoalkenes, opening epoxides and lactones, as a catalyst for oxidations, and in alkylations and condensations in organic chemistry. It is also used in analytical chemistry, and as a solvent for ore minerals. HUMAN STUDIES: Nose and throat irritation occurred in human subjects exposed to HBr for several minutes at concentrations of 3 ppm (1 of 6 subjects) and 4 ppm (3 of 6 subjects) respectively for several minutes. No effects were observed at 2 ppm, but detectable odor was noted at all exposure levels (2 to 6 ppm). No eye irritation was noted. The odor threshold is given as 6.667 mg/cu m and the irritating concentration as 10.00 mg/cu m. Concentrations of 0.13-0.2% are lethal. HBr is also corrosive to skin and mucous membranes and can cause severe burns. Exposure to high concentrations may result in dermatitis. Severe exposures result in pulmonary edema, and often laryngeal spasm. Ingestion causes burns of mouth and stomach. A 60-year-old laboratory technician developed pulmonary infiltrates consistent with chemical pneumonitis following accidental exposure to a mixture of hydrogen bromide and phosphorus tribromide. Two patients developed acute pneumonitis followed by reactive airways dysfunction syndrome after bathing in a hot tub. Bromine and hydrobromic acid generated from a widely used water disinfectant were implicated as the underlying cause. ANIMAL STUDIES: In rats, tissue injury following nose-breathing exposure to HBr was confined to the nasal region. However, mouth-breathing exposure in rats caused higher mortality rates and major tissue disruption in the trachea, including epithelial, submucosal, glandular, and cartilage necrosis, and accumulations of inflammatory cells and exudates. More peripheral lung damage was manifested by lung gravimetric increases and histopathologic changes primarily in the larger conducting airways. HBr causes more severe burns to rat skin than hydrogen chloride or hydrogen iodide.

LD50 Rat ip 76 mg/kg|LC50 Rat inhalation 2858 ppm/1 hr|LC50 Mouse inhalation 814 ppm/1 hr

Hydrogen bromide is found in gases from volcanoes(1).

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).

According to the 2016 TSCA Inventory Update Reporting data, 4 reporting facilities estimate the number of persons reasonably likely to be exposed during the manufacturing, processing, or use of hydrogen bromide in the United States may be as low as 10 workers and as high as 1,000 workers per plant; the data may be greatly underestimated due to confidential business information (CBI) or unknown values(1).|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).

Inhalation causes severe irritation of nose and upper respiratory tract, lung injury. Ingestion causes burns of mouth and stomach. Contact with eyes causes severe irritation and burns. Contact with skin causes irritation and burns. (USCG, 1999)|Corrosives

Eye: If this chemical in solution contacts the eyes, immediately wash the eyes with large amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately. Contact lenses should not be worn when working with this chemical. If eye tissue is frozen, seek medical attention immediately. If tissue is not frozen, immediately and thoroughly flush the eyes with large amounts of water for at least 15 minutes, occasionally lifting the lower and upper eyelids. If irritation, pain, swelling, lacrimation, or photo phobia persist, get medical attention as soon as possible. Skin: If this chemical in solution contacts the skin and frostbite has not occurred, immediately flush the contaminated skin with water. If this chemical penetrates the clothing, immediately remove the clothing and flush the skin with water. Get medical attention promptly. If frostbite has occurred, seek medical attention immediately; do NOT rub the affected areas or flush with water. In order to prevent further tissue damage, do NOT attempt to remove frozen clothing from frostbitten areas. Breathing: If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If breathing has stopped, perform mouth-to-mouth resuscitation. Keep the affected person warm and at rest. Get medical attention as soon as possible. Swallow: If this chemical in solution has been swallowed, get medical attention immediately. (NIOSH, 2016)|(See procedures)

Fresh air, rest. Half-upright position. Refer for medical attention.

ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention .

First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.

Immediate first aid: Ensure that adequate decontamination has been carried out. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR as necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Bromine, methyl bromide, and related compounds/|Basic treatment: Establish a patent airway (oropharyngeal or nasopharyngeal airway, if needed). Suction if necessary. Watch for signs of respiratory insufficiency and assist ventilations if necessary. Administer oxygen by nonrebreather mask at 10 to 15 L/min. Monitor for pulmonary edema and treat if necessary ... . Monitor for shock and treat if necessary ... . Anticipate seizures and treat if necessary ... . For eye contamination, flush eyes immediately with water. Irrigate each eye continuously with 0.9% saline (NS) during transport ... . Do not use emetics. For ingestion, rinse mouth and administer 5 mL/kg up to 200 mL of water for dilution if the patient can swallow, has a strong gag reflex, and does not drool. Administer activated charcoal ... . Cover skin burns with dry sterile dressings after decontamination ... . /Bromine, methyl bromide, and related compounds/|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 of fluid overload ... . Treat seizures with diazepam (Valium) or lorazepam (Ativan) ... . Use proparacaine hydrochloride to assist eye irrigation ... . /Bromine, methyl bromide, and related compounds/|Immediate first aid: Ensure that adequate decontamination has been carried out as needed. If patient is not breathing, start artificial respiration, preferably with a demand-valve resuscitator, bag-valve-mask device, or pocket mask, as trained. Perform CPR if necessary. Immediately flush contaminated eyes with gently flowing water. Do not induce vomiting. If vomiting occurs, lean patient forward or place on left side (head-down position, if possible) to maintain an open airway and prevent aspiration. Keep patient quiet and maintain normal body temperature. Obtain medical attention. /Choking Agents (Pulmonary/Lung-Damaging Agents)/|For more Antidote and Emergency Treatment (Complete) data for Hydrogen bromide (6 total), please visit the HSDB record page.

/HUMAN EXPOSURE STUDIES/ Nose and throat irritation occurred in human subjects exposed to HBr for several minutes at concentrations of 3 ppm (1 of 6 subjects) and 4 ppm (3 of 6 subjects) respectively for several minutes. No effects were observed at 2 ppm, but detectable odor was noted at all exposure levels (2 to 6 ppm). No eye irritation was noted at all concentrations exposed. The odor threshold is given as 6.667 mg/cu m and the irritating concentration as 10.00 mg/cu m.|/SIGNS AND SYMPTOMS/ ... Highly toxic /gas/ ... Being severely irritating to upper resp tract. The ... /acid/ formed neutralizes the alkali of tissues and can cause death as a result of edema or spasm of larynx and inflammation of upper resp system. Concn of 0.13-0.2% are lethal ... In exposures lasting a few min.|/SIGNS AND SYMPTOMS/ /GAS/ ... Also corrosive to skin and mucous membranes and can cause severe burns. Exposure to high concn may ... Result in dermatitis. Contact with eyes rapidly causes severe irritation of eyes and eyelids.|/SIGNS AND SYMPTOMS/ Inhalation of hydrogen bromide causes irritation of the upper respiratory tract, and a concentration of about 35 ppm causes irritation of the throat after short exposure. More severe exposures result in pulmonary edema, and often in laryngeal spasm.|For more Human Toxicity Excerpts (Complete) data for Hydrogen bromide (8 total), please visit the HSDB record page.

Acid, Hydrobromic

The substance can be absorbed into the body by inhalation.|inhalation, ingestion (solution), skin and/or eye contact

irritation eyes, skin, nose, throat; solution: eye, skin burns; liquid: frostbite

Burning sensation. Cough. Sore throat. Laboured breathing. Shortness of breath. Symptoms may be delayed.

ON CONTACT WITH LIQUID: FROSTBITE. Redness. Pain. Blisters.

Redness. Pain. Severe deep burns.

Eyes, skin, respiratory system

Grade: Up to 99.8% minimum purity. /Hydrogen bromide gas/|Grades: Technical 40%; Medicinal 48%, 62% /Hydrobromic acid/|The aqueous acid is commercially available as colorless 48% and 62% solutions.|Anhydrous hydrogen bromide is commonly available in 99.8 % purity in cylinders containing 6.8, 13.6, or 68 kg at 2.2 MPa at 21.1 °C.

All other basic inorganic chemical manufacturing|Hydrobromic acid: ACTIVE|Liquefied hydrobromic acid is available commercially in cylinders and various strengths of aqueous hydrobromic acid are available in drums or tank cars.

Method: EPA OAQPS-26; Procedure: ion chromatography; Analyte: hydrogen bromide; Matrix: air; Detection Limit: not provided.|Method: OSHA ID-165SG; Procedure: ion chromatography; Analyte: hydrogen bromide; Matrix: air; Detection Limit: 0.2 ug/sample.

Health Hazards -> Corrosives