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Product Name: Hydrogen Bromide
Chemical Formula: HBr
Synonyms: Hydrobromic acid gas, Bromane
Recommended Use: Laboratory reagent, chemical synthesis
Manufacturer/Supplier: Established chemical supply companies, widely used in research and industry
Emergency Contact Number: Provided by chemical supplier, response teams are trained to handle gas exposure
CAS Number: 10035-10-6
Classification: Corrosive gas, acute toxic inhalant, environmental hazard
GHS Label Elements: DANGER pictogram, corrosion and toxicity icons
Primary Hazards: Damages respiratory system, can burn skin and eyes, reacts strongly with water to form corrosive acid
Signal Word: Danger
Hazard Statements: Causes severe skin burns, eye damage, may be fatal if inhaled in large quantities, produces toxic fumes
Precautionary Statements: Do not breathe gas, avoid all contact with eyes, skin, and clothing, always use in well-ventilated area with protective barriers
Routes of Exposure: Inhalation, skin and eye contact
Chemical Name: Hydrogen Bromide
Concentration: Pure gas in cylinders, can be dissolved in water as hydrobromic acid
CAS Number: 10035-10-6
Impurities/Additives: Commercial grades may contain trace water vapor
Inhalation: Remove victim to fresh air immediately, monitor breathing, seek medical help, artificial respiration if breathing stops
Skin Contact: Remove contaminated clothing, wash skin thoroughly with plenty of water, get prompt medical advice
Eye Contact: Rinse gently with water for at least 15 minutes, hold eyelids open, do not use neutralizing agents, seek immediate medical attention
Ingestion: Unlikely due to gas form, if liquid hydrobromic acid is swallowed, rinse mouth, do not induce vomiting, get emergency help quickly
Acute and Delayed Symptoms: Coughing, shortness of breath, burns, ulceration in contact areas, possible pulmonary edema
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, water spray for containers
Special Hazards: Gas is not flammable, but containers may rupture in heat, releases toxic hydrogen bromide fumes when heated
Protective Equipment: Full protective gear, self-contained breathing apparatus preferred
Specific Hazards During Fire: Avoid inhaling fumes, keep containers cool with water spray, prevent firewater from entering drains
Advice for Firefighters: Approach from upwind, avoid low-lying areas, control contaminated run-off
Personal Precautions: Evacuate area, ventilate space, restrict access, wear full-face respirator, chemical protective suit
Environmental Precautions: Prevent entry into sewers, groundwater, or bodies of water
Cleanup Methods: Gas leaks: stop leak if safe, allow gas to disperse in open air, use positive pressure ventilation, do not touch damaged containers
Decontamination Procedures: Flush affected surfaces with copious water, neutralize liquid acid with dilute soda ash solution, collect residue for safe disposal
Safe Handling Practices: Always use closed systems, mechanical ventilation, avoid direct contact, never handle cylinders with wet hands
Storage Requirements: Keep in secure, dry, well-ventilated area, away from moisture, incompatible substances such as alkalis and metals, store upright with valve protection
Special Sensitivities: Reacts strongly with water, ammonia, bases, oxidizers; may corrode metals including brass and steel
Storage Temperature: Cool, below 40°C, avoid sunlight and heat
Occupational Exposure Limit: OSHA PEL: 3 ppm (as HBr), NIOSH REL: 3 ppm
Engineering Controls: Use fume hood, local exhaust, gas detectors
Personal Protective Equipment: Full-face respirator with acid gas cartridges, chemical-resistant gloves (neoprene, butyl rubber), safety goggles, face shield, acid-resistant clothing and boots
Emergency Equipment: Eyewash station and safety shower must be within immediate work area, spill response gear readily available
Appearance: Colorless to pale yellow, pungent gas
Odor: Irritating, suffocating, acrid
Boiling Point: -66.8°C
Melting Point: -87.7°C
Solubility: Highly soluble in water, forms hydrobromic acid
Molecular Weight: 80.91 g/mol
Vapor Pressure: High at room temperature
Density: 3.63 g/L at 0°C (gas)
pH: Acidic in solution, pH of 1 M solution is about 1
Chemical Stability: Stable under recommended storage, decomposes slowly in air, forms hydrobromic acid in humidity
Incompatible Materials: Alkalis, water, ammonia, oxidizers, many metals
Hazardous Decomposition Products: Bromine gas, hydrogen gas and corrosive mists in contact with metals or moisture
Possibility of Hazardous Reactions: Vigorous exothermic reactions with bases and reactive metals
Routes of Exposure: Inhalation, skin, and eye contact
Acute Toxicity: Severe respiratory irritation, risk of pulmonary edema, corrosive burns to skin and eyes
Chronic Toxicity: Repeated exposure damages respiratory tract, may cause chronic bronchitis
LD50 (oral, rat): Data for aqueous hydrobromic acid: 214 mg/kg
Irritation: Extreme to mucous membranes and tissues
Symptoms: Burning, coughing, wheezing, chemical burns, delayed lung injury may follow high exposure
Aquatic Toxicity: Harmful to aquatic life, acidifies water rapidly, may cause fish kills at low concentrations
Environmental Fate: Reacts with moisture in air to produce acid, acid rain formation
Persistence and Degradability: Does not persist as HBr gas, converts readily to hydrobromic acid, strongly dissociates in the environment
Mobility in Soil: High solubility leads to rapid leaching
Bioaccumulation Potential: Not expected to accumulate in organisms
Waste Disposal Methods: Approved gas scrubbing systems neutralize released gas, diluted acid neutralized and disposed through hazardous waste contractors
Contaminated Packaging: Empty gas cylinders returned to supplier, not refilled without requalification
Environmental Precautions for Disposal: Prevent uncontrolled release, do not discharge to surface waters or drains
UN Number: UN 1048
Shipping Name: Hydrogen Bromide, anhydrous
Transport Hazard Class: 2.3 (Toxic Gas)
Packing Group: Not applicable for gases
Labeling: Toxic gas, corrosive warning labels required
Special Transport Precautions: Cylinders secured upright, protected from physical damage, carried in ventilated vehicles, emergency instructions must travel with shipment
U.S. Regulations: Listed under EPCRA, SARA Title III Section 302 (Extremely Hazardous Substance), CERCLA
OSHA: Specifically regulated as a hazardous material
EPA: Reportable Quantity (RQ): 5000 lbs for spills
International: Covered under European CLP Regulation (EC 1272/2008), registered with ECHA
Other Requirements: Use governed by local, state, and federal rules, emergency plans required where hydrogen bromide is stored in bulk
