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Product Name: Mercuric Bromide
Chemical Formula: HgBr2
Synonyms: Mercury(II) Bromide, Mercury dibromide
CAS Number: 7789-47-1
Recommended Use: Laboratory research, chemical analysis
Manufacturer Contact: Refer to supplier details on product label
Emergency Phone Number: Poison control center or local emergency service
Molecular Weight: 360.40 g/mol
GHS Classification: Acute Toxicity (Oral, Inhalation, Dermal), Chronic Aquatic Toxicity
Signal Word: Danger
Hazard Statements: Fatal if swallowed, inhaled, or absorbed through the skin. May cause damage to organs through prolonged or repeated exposure. Very toxic to aquatic life with long lasting effects.
Pictograms: Skull and crossbones, environment
Precautionary Statements: Do not breathe dust or fumes. Avoid contact with skin, eyes, and clothing. Wash hands thoroughly after handling. Use only outdoors or in a well-ventilated area. Wear protective clothing, gloves, eye and face protection. Keep away from food and drink. Collect spilled product promptly to prevent environmental contamination.
Immediate Symptoms: Coughing, sore throat, abdominal pain, vomiting, skin burns, eye irritation, tremors, respiratory distress.
Chemical Name: Mercury(II) bromide
CAS Number: 7789-47-1
Concentration: 100% (pure substance)
Impurities: None specified at or above reporting threshold by manufacturer
Inhalation: Remove person from exposure area to fresh air as soon as possible. Seek medical attention immediately. Administer artificial respiration if breathing has stopped.
Skin Contact: Remove contaminated clothing. Flush skin with plenty of water for at least 15 minutes. Seek immediate medical attention.
Eye Contact: Rinse eyes with water for at least 15 minutes, lifting lower and upper eyelids. Remove any contact lenses. Get medical attention immediately.
Ingestion: Rinse mouth with water. Do not induce vomiting. Never give anything by mouth to an unconscious person. Immediate medical care is essential.
Special Advice to Physicians: Treat as mercury poisoning, support respiratory and cardiovascular function. Consider chelation therapy in severe cases.
Suitable Extinguishing Media: Use dry sand, dry chemical, or carbon dioxide fire extinguishers. Water spray may spread contamination.
Unsuitable Extinguishing Media: Do not use a solid (direct) water stream; may scatter and spread fire.
Special Hazards: Product does not burn, but may release toxic mercury vapor and bromine fumes under fire conditions. Containers may rupture due to heat.
Protective Equipment: Firefighters must wear self-contained breathing apparatus and full protective gear.
Emergency Procedures: Move containers away from fire if safe. Cool containers with flooding water until well after fire is out.
Personal Precautions: Evacuate personnel to safe areas. Wear suitable personal protective equipment including gloves, goggles, and face shield. Avoid dust generation. Ventilate area.
Environmental Precautions: Do not allow to enter drains, water courses, or soil. Prevent further leakage or spillage if safe to do so.
Containment Methods: Sweep up carefully and place in a suitable, sealed chemical waste container. Avoid creating airborne dust.
Cleanup Procedures: Wash spill site after material pick-up is complete. Dispose of contaminated material as hazardous waste. Decontaminate tools and surfaces using approved mercury decontamination solutions.
Handling: Only trained personnel should handle this substance. Work in a certified chemical fume hood. Avoid contact with skin, eyes, and clothing. Do not ingest or inhale. Use smallest quantity needed and transfer carefully.
Storage: Store in tightly closed containers in a well-ventilated, secure area. Keep away from acids, strong reducing agents, and combustibles. Store at room temperature, protected from moisture and light. Label containers clearly with hazard warnings.
Special Requirements: Maintain good housekeeping practices. Monitor for spills regularly and report immediately.
Engineering Controls: Always use local exhaust ventilation. Chemical fume hood required for procedures capable of generating dust or vapor.
Respiratory Protection: Approved NIOSH/OSHA respirators for mercury compounds if ventilation is inadequate.
Skin Protection: Wear impervious gloves (nitrile or neoprene recommended), lab coat, and chemical-resistant apron.
Eye Protection: Chemical splash safety glasses or goggles, face shield as additional protection.
Hygiene Measures: Wash hands and face thoroughly after handling. Remove contaminated clothing before reuse. Do not eat, drink, or smoke near the substance.
Exposure Limits: OSHA PEL for mercury compounds (as Hg): 0.1 mg/m3 TWA; ACGIH TLV: 0.025 mg/m3 (as Hg, skin)
Appearance: White to pale yellow crystalline powder
Odor: Odorless
pH: Not applicable
Melting Point: 237°C
Boiling Point: Decomposes above 322°C
Flash Point: Not flammable
Solubility: Slightly soluble in water, soluble in concentrated acids
Density: 6.474 g/cm3 at 20°C
Vapor Pressure: Negligible at ambient temperature
Partition Coefficient (n-octanol/water): Not available
Evaporation Rate: Not applicable
Autoignition Temperature: Not applicable
Chemical Stability: Stable under standard temperature and pressure in dry conditions.
Reactivity: May react with strong reducing agents, alkali metals, and oxidizers. May form dangerous gases if mixed with acids.
Hazardous Decomposition Products: Toxic mercury vapor, bromine, and hydrobromic acid fumes.
Conditions to Avoid: Excessive heat, moisture, incompatible substances.
Polymerization: Will not occur.
Acute Toxicity: Oral (rat) LD50 35 mg/kg; highly toxic by inhalation, skin absorption, and ingestion.
Chronic Toxicity: Prolonged exposure causes neurological effects (tremors, memory loss), kidney damage, gastrointestinal disturbances.
Routes of Exposure: Inhalation, ingestion, skin and eye contact.
Symptoms: Nausea, vomiting, burns, ulceration, metallic taste, muscle tremors, weakness, CNS impairment.
Carcinogenicity: Not classified as carcinogen by NTP, IARC, or OSHA.
Other Health Effects: May damage fertility or the unborn child. May cause organ damage following repeated exposure.
Aquatic Toxicity: Very toxic to aquatic organisms with long-term adverse effects in the aquatic environment.
Persistence and Degradability: Persistent in the environment, does not readily degrade.
Bioaccumulative Potential: Expected to bioaccumulate due to mercury content.
Mobility in Soil: Limited mobility, binds to soil particles.
Other Adverse Effects: Toxic to wildlife. Release into the environment has significant ecological impacts for water and soil life.
Waste Treatment Methods: Collect and store waste in tightly sealed, labeled containers. Store separate from regular trash and materials.
Disposal Procedure: Hand over to a licensed hazardous waste disposal contractor. Do not dispose in landfill, sewers, or regular municipal waste.
Contaminated Packaging: Treat containers as hazardous. Rinse only if approved by authorities, otherwise dispose with compound.
Reference Regulations: Follow local, regional, and national waste management requirements for hazardous/mercury-containing materials.
UN Number: UN 1624
Proper Shipping Name: Mercury compound, solid, n.o.s. (Mercury(II) bromide)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: II
Label(s): Toxic substance
Environmental Hazards: Marine pollutant
Special Precautions: Secure packages against breakage and leakage. Carrier must be informed of toxic hazard.
Air/IATA: Permitted in Cargo Aircraft Only, subject to strict regulations.
DOT Regulatory Status: Regulated; hazardous material
TSCA: Listed in the Toxic Substances Control Act Inventory.
SARA Title III: Subject to reporting under Section 313 (mercury compounds).
RCRA: Regulated as hazardous waste (code D009 for mercury compounds).
Clean Air Act: Classified as hazardous air pollutant (HAP).
OSHA: Occupational exposure limits apply for mercury and mercury compounds.
EU REACH: Subject to restrictions on manufacture, sale, and use; registered under EC 232-165-4.
WHMIS (Canada): Classified as very toxic material.
California Proposition 65: Listed as a chemical known to cause reproductive toxicity.
Other Information: Always review national and regional regulations before shipping, handling, or disposal.
