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Product Name: Iodine Monobromide
Chemical Formula: IBr
Synonyms: Monobromoiodide, Bromoiodide
CAS Number: 7789-33-5
Recommended Use: Laboratory reagent, analytical chemistry
Supplier Information: Chemical manufacturer or laboratory supply distributor
Emergency Contact Number: Refer to local regulatory authority or poison control center
GHS Classification: Acute Toxicity (Oral, Inhalation, Dermal), Skin Corrosion/Irritation, Eye Damage/Irritation, Aquatic Acute Hazard
Signal Word: Danger
Hazard Statements: Causes severe skin burns and eye damage, toxic if inhaled or swallowed, causes respiratory tract irritation, may cause damage to organs through prolonged or repeated exposure, very toxic to aquatic life
Pictograms: Corrosive, Skull and Crossbones, Environment
Precautionary Statements: Avoid breathing dust, vapors, or mist; wear protective gloves, clothing, and eye/face protection; wash hands thoroughly; avoid release to environment
Potential Health Effects: Irritation to eyes, skin, and respiratory tract, possible lung damage if inhaled, systemic toxicity
Special Notes: High vapor pressure increases risk of exposure, symptoms may be delayed
Chemical Name: Iodine Monobromide
Common Name: IBr
Concentration: 100% (pure substance)
Impurities: Trace amounts of diatomic iodine or bromine may occur as by-products
Molecular Weight: 206.81 g/mol
Other Identifiers: UN 3260, EC Number 232-191-3
Inhalation: Move to fresh air immediately. Seek medical attention if symptoms like coughing, wheezing, or difficulty breathing develop. Provide oxygen if breathing becomes difficult.
Skin Contact: Remove contaminated clothing and rinse skin thoroughly with soap and water for at least 15 minutes. Seek medical attention for burns or irritation.
Eye Contact: Rinse eyes continuously with water for at least 15 minutes, lifting upper and lower eyelids frequently. Seek emergency medical assistance without delay.
Ingestion: Rinse mouth with water, never induce vomiting. Administer water only if the victim is conscious. Seek immediate medical attention.
Notes for Physicians: Treat symptomatically, observe for chemical pneumonitis or delayed symptoms.
Suitable Extinguishing Media: Dry chemical, carbon dioxide, or foam; avoid using water jets.
Specific Hazards: Emits toxic and corrosive fumes of hydrogen bromide and iodine vapors when heated or exposed to fire.
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing.
Special Procedures: Keep containers cool with water spray to prevent pressure build-up or explosion. Prevent firewater from entering waterways.
Decomposition Products: Hydrogen bromide, iodine, bromine gases.
Personal Precautions: Evacuate area, ventilate space, avoid breathing vapors or contact with skin and eyes. Wear respirator, gloves, goggles, and chemical-resistant clothing.
Environmental Precautions: Prevent entry into waterways, drains, or soil. Notify authorities in case of uncontrolled releases.
Spill Cleanup Methods: Contain and collect spilled material with non-combustible absorbent (sand, earth). Place in sealed containers for disposal. Decontaminate area using sodium thiosulfate or sodium sulfite solution to neutralize residues.
Further Advice: Dispose of cleanup materials as hazardous waste. Avoid dust formation.
Handling: Work in a well-ventilated fume hood. Use only with appropriate PPE. Avoid inhalation, ingestion, or skin contact. Open containers with caution due to pressure build-up from volatile fumes.
Storage: Store in tightly-sealed containers, away from heat, moisture, and direct sunlight. Keep locked away in a corrosion-resistant, cool, dry storage area clearly labeled for oxidizers and corrosives.
Incompatibility: Avoid storage near organics, reducing agents, strong acids, combustibles, metals, or bases.
Other Notes: Periodically inspect containers for leaks or corrosion.
Permissible Exposure Limits: No established OSHA or ACGIH exposure limits for IBr; use general control values for similar halogen compounds.
Engineering Controls: Use local exhaust or fume hood to minimize airborne exposure. Provide eyewash stations and safety showers.
Personal Protective Equipment: Splash goggles, face shield, chemical-resistant gloves (nitrile, neoprene), lab coat or chemical-resistant apron, approved respirator if ventilation is inadequate.
Hygiene Measures: Wash thoroughly after handling, remove contaminated clothing immediately.
Environmental Protection: Use spill containment and ventilation to prevent environmental release.
Appearance: Reddish-brown to dark red crystalline solid or liquid at room temperature
Odor: Pungent, halogen-like smell
Melting Point: 42°C (107.6°F)
Boiling Point: 116°C (240.8°F)
Vapor Pressure: High (volatilizes readily)
Solubility: Moderately soluble in water, highly soluble in organic solvents like ethanol, carbon tetrachloride, and chloroform
Density: 3.47 g/cm³
pH: Acidic in aqueous solution
Partition Coefficient (n-octanol/water): Not determined
Decomposition Temperature: Decomposes on heating to release toxic vapors
Chemical Stability: Stable under recommended handling and storage conditions. Decomposes in moist air or under heat.
Reactivity: Reacts violently with strong bases, oxidizers, reducing agents, metals, ammonium compounds, organic substances.
Hazardous Decomposition Products: Releases bromine, iodine, hydrogen bromide on decomposition.
Conditions to Avoid: Excess heat, moisture, exposure to light, contact with incompatible materials.
Polymerization: Not known to occur.
Potential Routes of Exposure: Skin contact, inhalation, eye contact, ingestion
Acute Effects: Severe irritation and burns of skin, eyes, and mucous membranes. Risk of corrosive damage to respiratory tract. Possible acute systemic toxicity through absorption.
Chronic Effects: Prolonged exposure may cause delayed respiratory or dermal effects, possible damage to organs such as liver, kidneys, or thyroid.
LD50 (Oral, Rat): No specific value found; expected to be highly toxic based on halogen content.
Symptoms: Coughing, burning sensation, headache, dizziness, nausea, vomiting, abdominal pain, tissue necrosis.
Carcinogenicity: Not classified as a human carcinogen by IARC, NTP, ACGIH.
Other Information: May cause allergic sensitization in susceptible individuals.
Ecotoxicity: Highly toxic to aquatic organisms, may cause long-term adverse effects in aquatic environments.
Persistence and Degradability: Decomposes in water over time but leaves persistent halogen ions.
Bioaccumulative Potential: Accumulates in aquatic life and soil through repeated release, potential for food chain build-up.
Mobility in Soil: Migrates readily through water and moist soil, risk of groundwater contamination.
Other Adverse Effects: Disrupts beneficial microbial communities in water and soil, may have ozone-depleting potential if released to atmosphere.
Waste Treatment Methods: Dispose as hazardous waste according to local, state, and federal regulations.
Recommended Disposal: Contact licensed waste disposal company. Do not discharge to sewer, water systems, or environment.
Container Disposal: Rinse thoroughly with neutralizing agent (sodium thiosulfate); dispose of as hazardous waste.
Special Precautions: Incinerate only in chemical incinerators fitted with scrubbers. Never landfill untreated product.
Regulatory Compliance: Always comply with RCRA, EPA, and local disposal restrictions.
UN Number: 3260
Proper Shipping Name: Corrosive solid, acidic, inorganic, n.o.s. (contains Iodine Monobromide)
Transport Hazard Class: 8 (Corrosive)
Packing Group: II
Label: Corrosive, Toxic
Special Transport Precautions: Use corrosion-proof, sealed containers. Protect from movement, moisture, and temperature fluctuations.
Marine Pollutant: Yes
Additional Information: Subject to carriage restrictions on air and sea shipments by IATA/IMDG codes.
US Federal Regulations: SARA Title III Sections 302, 304, 311, 312, 313 (hazardous chemical, immediate/acute, delayed/chronic health hazard), subject to CERCLA reporting
TSCA Status: Registered substance
OSHA: Considered hazardous; listed as a corrosive and acute toxin
EU Classification: C (Corrosive), T (Toxic), N (Dangerous for the Environment), per Regulation (EC) No 1272/2008 (CLP/GHS)
REACH Registration: Required for imports above threshold volumes
State Regulations: Subject to specific state hazardous substance lists and environmental restrictions
Other Regulatory Listings: Listed on Canadian DSL and Australian AICS chemical inventories
