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Name: Tris(dibenzylideneacetone)dipalladium(0)
Common Abbreviations: Pd2(dba)3
Chemical Formula: C102H78O6Pd2
Appearance: Deep red to purple crystalline powder, sometimes showing oily clumps after exposure
Main Use: Widely used as a catalyst in organic synthesis, especially in cross-coupling reactions
Route of Entry: Inhalation, skin and eye contact, accidental ingestion during lab handling
Acute Hazards: Skin, eye, and respiratory irritation; allergic reaction risk for sensitive individuals; palladium compounds can be harmful even in small doses
Chronic Hazards: Long-term exposure may affect organ systems based on animal testing with related compounds
Hazard Statements: Irritates eyes and skin; may cause allergies; toxic to aquatic life if allowed into drains
Carcinogenicity: No classified carcinogenic status, but palladium’s effects still spark debate
Pictogram (for reference): Consider using exclamation mark (irritant) and aquatic hazard symbols in the lab
Main Ingredient: Tris(dibenzylideneacetone)dipalladium(0), often at 99 percent or higher purity
Impurities: Small traces of dibenzylideneacetone, elemental palladium, or related byproducts possible depending on storage history
Hazardous Components: Palladium content particularly important due to potential toxicity
Eye Contact: Rinse with large amounts of water for several minutes; don’t wait before flushing, since palladium complexes can lodge in eye tissue
Skin Contact: Remove contaminated clothing; wash area thoroughly with soap and water; rash development calls for medical attention
Inhalation: Move to fresh air; seek medical advice if you cough, develop irritation, or feel unwell
Ingestion: Rinse mouth, do not induce vomiting, get medical help quickly, especially if nausea or gastric distress occurs
Sensitivity: Stable under most lab conditions, but organic ligands may burn
Extinguishing Agents: Use dry powder, foam, or carbon dioxide; avoid water if fire is near active chemicals
Decomposition Products: Burning produces irritating or toxic fumes, including carbon monoxide, benzene-type volatiles, and palladium oxides
Precautions for Firefighters: Wear full protective gear; use self-contained breathing apparatus
Personal Protection: Gloves, chemical goggles, and dust mask; don’t handle with bare hands
Cleanup Methods: Sweep up solid using wet paper towel or HEPA vacuum in a ventilated area; avoid raising dust
Environmental Precautions: Don’t let chemical reach drains or open soil; report larger spills to safety authorities
Waste Disposal: Place all cleanup material in sealed, labeled bags for regulated waste processing
Precautions: Avoid breathing dust or letting powder contact skin; don’t eat, drink, or smoke nearby
Handling: Use in a well-ventilated workspace, ideally a fume hood; wash hands after working
Storage: Store in tightly-sealed container in cool, dry, dark place; protect from moisture; keep separate from strong oxidizers or acids
Labeling: Always keep original label or prominent hazard labeling on secondary containers
Engineering Controls: Local exhaust ventilation or fume hood; minimize airborne dust
PPE: Disposable gloves made of nitrile or similar non-permeable material, chemical splash goggles, lab coat
Respiratory Protection: Dust mask or respirator for powder handling outside of a fume hood
Skin Protection: Change gloves frequently; prevent skin contact with powder or solution
Eye Protection: Use safety glasses or goggles that wrap around sides, since fine particles travel far in air
Color: Red to purple crystalline powder
Odor: Faint organic smell, some sense musty
Melting Point: Decomposes or melts incompletely above 150°C; not precise
Solubility: Insoluble in water, soluble in organic solvents such as chloroform, dichloromethane, benzene
Vapor Pressure: Negligible under normal conditions
Density: Roughly 1.3–1.4 g/cm3
Stability: Stable under nitrogen or in tightly sealed vial; air and light gradually degrade
Hazardous Reactions: Strong oxidizers cause rapid decomposition; acid may break down complex
Incompatible Materials: Avoid mixing with peroxides, halogen acids, some bases
Decomposition: Releases volatile organic compounds and palladium dust when overheated or exposed to acids
Acute Toxicity: Experimental animal studies show organ and tissue irritation; human effects not fully characterized, though palladium complexes can cause moderate toxicity upon ingestion or direct injection
Chronic Effects: Palladium dust possibly linked to asthma, skin sensitization, or rare blood effects in sensitive people
Routes of Exposure: Inhalation of dust, skin/eye contact most likely in labs; ingestion extremely rare and highly discouraged
Symptoms: Burning, stinging, rash, possible swelling of exposed tissues
Data Gaps: Human epidemiological evidence for long-term effects limited; anyone with metal allergies should proceed with great care
Persistence: Organopalladium complexes persist in soil and water, not easily degraded by microbes
Toxicity to Aquatic Life: Harmful to fish and aquatic invertebrates, especially with extended exposure
Bioaccumulation: Heavy metals like palladium tend to accumulate in the environment over time
Prevention: Minimize release to waste water or environment; treat waste in regulated hazardous facilities
Waste Handling: Collect solids and contaminated items in labeled hazardous waste containers; avoid mixing with other metals
Incineration: Incinerate in controlled facility; do not burn in open air
Special Precautions: Never flush down sink; share all disposal documentation with hazardous waste management authorities; accidental release must be reported per local regulations
Recycling: Precious metal reclamation an option, if waste process allows recovery of palladium
UN Regulation: Chemical falls under dangerous goods if shipped in bulk; most small research quantities not regulated for domestic air/road, though local rules apply
Packing Requirements: Leak-proof container, secondary packaging with absorbent lining for liquids
Labels: Clearly mark packages as laboratory chemicals with hazard statements visible
Documentation: Shipping documents should include actual chemical name and emergency actions
Workplace Regulations: Laboratory use regulated by local chemical safety acts and workplace exposure laws
Environmental Regulations: Control on disposal, soil and water release; EPA and EU REACH have listed palladium compounds for monitoring
Restrictions: Some countries limit or register use above specific amounts
Disclosure: Always inform safety officers and regulatory bodies about storage, use, and waste generation in institutional settings
