Material Safety Data Sheet (MSDS) for Cupric Bromide

Identification

Product Name: Cupric Bromide
Synonyms: Copper(II) bromide, Copper dibromide
Chemical Formula: CuBr₂
CAS Number: 7789-45-9
Recommended Use: Laboratory reagent, photography, laser material
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Hazard Identification

Classification: Acute toxicity (oral, dermal, inhalation); Skin and eye irritation
GHS Label Elements: Danger symbol, exclamation mark
Hazard Statements: Harmful if swallowed; causes skin and serious eye irritation; may cause respiratory irritation; may cause damage to organs through prolonged or repeated exposure
Precautionary Statements: Avoid breathing dust or fume; wash hands thoroughly after handling; use only outdoors or in well-ventilated area; wear protective gloves, clothing, eye, and face protection
Routes of Exposure: Skin, eyes, inhalation, ingestion
Symptoms of Overexposure: Irritation of mucous membranes, nausea, headache, vomiting, abdominal pain, blue-green vomiting or diarrhea, copper-specific toxicity symptoms such as metal taste, jaundice, hemolysis

Composition / Information on Ingredients

Chemical Name: Cupric Bromide
Common Name: Copper(II) bromide
CAS Number: 7789-45-9
Concentration: 98–100%
Impurities/Additives: None significant

First Aid Measures

Inhalation: Move person to fresh air; keep warm and at rest; seek medical advice if symptoms develop
Skin Contact: Remove contaminated clothing, flush affected area with plenty of water and soap; seek medical advice if irritation persists
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes; keep eyelids open; obtain medical attention
Ingestion: Rinse mouth with water, do not induce vomiting unless directed by medical personnel; seek medical attention immediately
Most Important Symptoms/Effects: Intense irritation or burns, nausea, vomiting, gastrointestinal distress
Notes for Physician: Treat symptomatically; copper salts may cause hemolytic anemia and hepatotoxicity

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical powder, carbon dioxide
Unsuitable Media: Direct water jet on product can cause contamination spread
Special Hazards: Product decomposes on heating, forming toxic fumes including hydrogen bromide and copper oxides
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective clothing
Fire/Explosion Hazards: Product does not burn but may liberate toxic, corrosive gases in a fire; avoid inhalation of fumes
Further Advice: Cool fire-exposed containers with water spray to reduce risk of rupture

Accidental Release Measures

Personal Precautions: Avoid dust creation, do not breathe dusts or vapors, ventilate area, evacuate non-essential personnel
Environmental Precautions: Prevent entry into sewers, drains, watercourses; copper compounds are toxic to aquatic life
Methods for Cleaning Up: Pick up and transfer to properly labeled containers for disposal using tools that minimize dust generation (e.g., damp wipe, vacuum with HEPA filter); wash spill site after material pickup
Disposal: Dispose according to local regulations; avoid releasing substance to environment
Protective Equipment: Wear suitable gloves, goggles, lab coat, and respirator in poorly ventilated areas

Handling and Storage

Safe Handling: Handle in well-ventilated area or fume hood, minimize dust generation, avoid contact with skin, eyes, and clothing, do not ingest or inhale, practice good hygiene (wash hands after use)
Storage Conditions: Store in tightly sealed original container, in cool, dry, and well-ventilated area away from incompatible materials (strong acids, bases, reducing agents, ammonium salts, powdered metals)
Incompatibilities: Moist air, reducing agents, alkali metals, strong acids/bases cause hazardous reactions or degradation
Other Practices: Containers that have been opened should be resealed and kept upright to prevent leakage

Exposure Controls and Personal Protection

Occupational Exposure Limits: ACGIH TLV for copper dusts and mists as Cu: 1 mg/m³ (TWA); OSHA PEL: 1 mg/m³ (TWA)
Engineering Controls: Local exhaust ventilation, safety shower, eyewash stations
Personal Protective Equipment: Safety goggles or face shield; chemical-resistant gloves (nitrile, neoprene); lab coat or apron; NIOSH-approved particulate respirator if dust or aerosols could form
Hygiene Measures: Wash hands thoroughly after handling; wash contaminated clothing before reuse
Environmental Controls: Prevent further leakage or spillage if safe to do so; contain runoff

Physical and Chemical Properties

Appearance: Green crystalline solid
Odor: Odorless
Molecular Weight: 223.35 g/mol
pH (1% solution): Acidic
Melting Point: 498 °C
Boiling Point: Decomposes before boiling
Solubility in Water: About 53.6 g/L at 25°C
Solubility in Other Solvents: Soluble in methanol, ethanol, acetone
Vapor Pressure: Negligible at room temperature
Density: 4.71 g/cm³
Partition Coefficient (n-octanol/water): Not available
Flash Point: Not applicable
Autoignition Temperature: Not applicable
Explosive Properties: Not explosive
Oxidizing Properties: Not classified as oxidizing

Stability and Reactivity

Chemical Stability: Remains stable under proper storage conditions but may degrade on exposure to moisture or high temperatures
Conditions to Avoid: High humidity, excessive heat, incompatible substances
Incompatible Materials: Strong acids, bases, reducing agents, alkali metals, ammonium salts, powdered metals (increase risk of hazardous reaction)
Hazardous Decomposition Products: Releases hydrogen bromide, bromine, copper oxides under fire or thermal decomposition
Polymerization: Not prone to hazardous polymerization

Toxicological Information

Likely Routes of Exposure: Ingestion, inhalation, skin contact, eye contact
Acute Toxicity: Oral LD₅₀ (rat): 1,000–1,800 mg/kg; ingestion or inhalation causes vomiting, diarrhea, abdominal pain, metallic taste, hemolytic anemia, or other copper-specific effects
Skin/Eye Irritation: Causes severe irritation, redness, burning sensation, in some cases damage to tissues
Respiratory Effects: Inhalation of dusts may cause coughing, throat irritation, inflammation of the respiratory tract
Chronic Effects: Prolonged/repeated exposure can result in liver and kidney damage, hair discoloration, skin eczema, copper accumulation
Sensitization: No data on sensitizing effects
Carcinogenicity/Mutagenicity: Neither listed by IARC or NTP as a carcinogen; mutagenicity data not sufficient for classification
Reproductive Toxicity: Not established
Medical Conditions Aggravated: Pre-existing liver, kidney, or blood disorders

Ecological Information

Ecotoxicity: Highly toxic to aquatic life (fish, invertebrates, algae) due to copper ions
Aquatic Fate: Dissociates into copper and bromide ions; copper is persistent and bioaccumulative, leading to long-term adverse impacts in aquatic environments
Mobility: Few data; leaching depends on soil conditions and pH, copper binds strongly to organic material in soils and sediments
Degradability: Not biodegradable
Bioaccumulative Potential: Copper accumulates in aquatic organisms causing potential food chain hazards
Long-Term Effects: Detrimental to water ecosystems through inhibition of enzymes, disruption of reproduction, behavioral changes in aquatic organisms

Disposal Considerations

Waste Disposal: Collect and store waste in sealed containers clearly labeled for hazardous waste contractors; do not dump into drains, storm sewers, or water bodies
Disposal Regulations: Dispose of in accordance with federal, state, and local environmental control regulations
Contaminated Packaging: Rinse and dispose of packaging as hazardous material
Special Precautions: Ensure waste is treated or disposed of by a licensed facility; minimize environmental release due to aquatic toxicity

Transport Information

UN Number: 3288
UN Proper Shipping Name: Toxic solid, inorganic, n.o.s. (contains Cupric Bromide)
Transport Hazard Class: 6.1 (Toxic substances)
Packing Group: III
Labels Required: Toxic
Marine Pollutant: Yes (copper compounds)
Special Transport Considerations: Keep tightly closed, away from foodstuffs or compatible materials; follow local and international regulations during transportation

Regulatory Information

OSHA Status: Classified as hazardous by criteria of the OSHA Hazard Communication Standard (29 CFR 1910.1200)
TSCA (Toxic Substances Control Act): Listed
SARA Title III (EPCRA) Sections 302/304/313: Copper compounds listed as SARA 313 hazardous chemical
RCRA (Resource Conservation and Recovery Act): Classified as hazardous waste (D001/D003/D008)
WHMIS Classification (Canada): D2B – Toxic material causing other toxic effects
EU Classification: Acute Tox. 4; Eye Irrit. 2; Aquatic Acute 1; Aquatic Chronic 1
Other Regulations: Product subject to state and local regulatory requirements for hazardous waste and reportable quantities
Label Requirements: Clearly indicate hazard classes, pictograms, precautionary statements according to GHS/OSHA/EU CLP guidelines