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Product Name: Alkylaluminum Hydride
Chemical Family: Organometallic Compound
Synonyms: Diisobutylaluminum hydride, DIBAL-H
Relevant Use: Laboratory reagent, industrial synthesis
Manufacturer/Supplier: Chemical supply companies, industrial producers
Emergency Phone: Refer to supplier
CAS Number: Example: 1191-15-7
GHS Classification: Flammable liquids (Category 1), Pyrophoric liquids (Category 1), Water-reactive substances (Category 1), Skin corrosion (Category 1B), Eye damage (Category 1)
Symbol(s): Flame, Skull and Crossbones, Corrosive, Danger
Hazards: Causes severe skin burns and eye damage, catches fire spontaneously in air, releases flammable gases in contact with water, toxic if inhaled, harmful if swallowed
Precautionary Statement: Keep away from air, water, heat, and ignition sources; use non-sparking tools; avoid all contact; use in well-ventilated area
Routes of Exposure: Skin, eye, inhalation, ingestion
Pictogram: Flame, exclamation mark, corrosion
Chemical Name: Alkylaluminum hydride
Common Components: Diisobutylaluminum hydride (DIBAL-H): 70-100%, Organic solvent carrier (i.e., Toluene or Hexane): Balance
CAS Number: 1191-15-7 (for DIBAL-H)
Impurities: Possible trace amounts of aluminum hydroxide
Hazardous Components: All ingredients classified as hazardous under OSHA and GHS
Eye Contact: Flush with water for at least 15 minutes keeping eyelids open, remove contact lenses, seek medical attention
Skin Contact: Remove contaminated clothing, rinse area with plenty of water for at least 15 minutes, seek immediate medical help
Inhalation: Remove to fresh air, ensure unobstructed breathing, seek medical attention immediately if symptoms develop
Ingestion: Do not induce vomiting, rinse mouth thoroughly, never give anything by mouth to an unconscious person, seek immediate medical care
Most Important Symptoms: Severe burning, redness, pain, possible delayed tissue damage, difficulty breathing after inhalation, abdominal pain and vomiting after ingestion
Medical Attention: Call a poison center or healthcare provider
Suitable Extinguishing Media: Dry powder (Class D for metals), do not use water or foam
Unsuitable Media: Water, carbon dioxide
Hazards: Releases flammable hydrogen gas upon contact with water or humid air, vapors may travel and ignite elsewhere
Special Protective Equipment: Full protective gear, self-contained breathing apparatus
Special Procedures: Move containers from fire area if safe, cool with dry agents, stay upwind, use caution—compound can reignite
Decomposition Products: Hydrogen, toxic fumes, aluminum oxides
Personal Precautions: Evacuate area, ventilate, eliminate all ignition sources, avoid breathing vapors, don chemical-resistant gloves and goggles
Emergency Procedures: Contact trained hazardous material response team
Spill Containment: Dike spill with inert material (dry sand, earth), prevent entry into waterways or sewers
Cleanup Methods: Absorb liquid in dry inert material, transfer to sealed container for disposal, do not allow contact with water
Decontamination: Treat affected surfaces with dry lime or soda ash, never with water
Environmental Precautions: Prevent further leakage or spillage if safe, report uncontrolled releases to local authorities
Safe Handling: Handle inside an inert atmosphere glovebox or with strict exclusion of air and moisture, use non-sparking tools, avoid skin contact, do not breathe fumes
Storage Conditions: Store under nitrogen or dry argon, in a cool, well-ventilated area, away from water, acids, oxidizers, and direct sunlight
Container Requirements: Use containers made from compatible materials such as steel or glass, tightly closed and labeled
Transfer Precautions: Use air-free techniques and ground all equipment
Incompatible Materials: Water, alcohols, halogenated hydrocarbons, oxidizing agents
Additional Measures: Restrict access to trained personnel only
Occupational Exposure Limits: No established OSHA or ACGIH limits for DIBAL-H; maintain levels as low as possible
Engineering Controls: Use fume hood, glovebox, explosion-proof ventilation, local exhaust
Eye Protection: Chemical safety goggles and face shield
Skin Protection: Impervious gloves (nitrile or neoprene), flame-retardant lab coat, rubber boots
Respiratory Protection: NIOSH-approved respirator for organic vapor or supplied-air respirator if exposure risk exists
Hygiene Measures: Wash hands thoroughly before breaks and at end of shift, avoid eating or drinking near work area
Appearance: Clear, colorless to slightly yellow liquid (in solution)
Odor: Pungent, sharp
Odor Threshold: Not established
pH: Not applicable
Melting Point: -90°C (solvent dependent)
Boiling Point: 162°C (for DIBAL-H, solvent dependent)
Flash Point: <0°C (very low due to solvent)
Evaporation Rate: Not available
Flammability: Extremely flammable
Explosion Limits: Upper/Lower limits dependent on solvent
Vapor Pressure: Moderate (solvent dependent)
Vapor Density: Heavier than air
Specific Gravity: Approx. 0.80 (variable with solvent)
Solubility: Reacts violently with water
Partition Coefficient: Not available
Auto-Ignition Temperature: 100-200°C
Decomposition Temperature: Unstable at elevated temperature
Chemical Stability: Stable only under inert atmosphere, decomposes on contact with air or moisture
Possibility of Reactions: Forms hydrogen gas when reacts with protic solvents, pyrophoric in air
Conditions to Avoid: Exposure to moisture, heat, air, ignition sources
Materials to Avoid: Water, alcohols, acids, oxidizers, halogenated compounds
Decomposition Products: Aluminum oxide, hydrogen gas, other toxic gases
Polymerization: Will not occur under recommended conditions
Routes of Exposure: Skin/eye contact, inhalation, ingestion
Acute Toxicity: Harmful by inhalation, skin absorption, ingestion; severe burns, respiratory distress
Skin Corrosion/Irritation: Causes chemical burns, blistering
Eye Damage/Irritation: Risk of blindness, severe irritation
Respiratory Impact: Harmful vapors, can trigger cough, chest pain, shortness of breath
Chronic Effects: Prolonged exposure may aggravate respiratory, skin, or eye conditions
Carcinogenicity: Not classified as carcinogen by OSHA, NTP, IARC
LD50 (Oral, Rat): Data not specifically available; high toxicity expected on exposure
Aquatic Toxicity: Very toxic to aquatic organisms, immediate threat if spilled in bodies of water
Persistence/Degradability: Rapidly reacts and breaks down; persistent effects from aluminum byproducts
Bioaccumulation: No significant bioaccumulation expected
Mobility in Soil: Highly reactive, does not migrate in original form
Other Adverse Effects: Generates hydrogen gas, disrupts water chemistry, impacts aquatic life fatally
Waste Treatment Methods: Neutralize residue using dry, inert absorbents (never water), collect in closed metal containers
Disposal of Product: Send to licensed hazardous waste facility compliant with local/federal regulations
Contaminated Packaging: Rinse with dry solvent, handle as hazardous waste
Regulatory Disposal Codes: Consult national, state, local regulations for hazardous waste numbers applicable
Do Not: Discharge to drains, surface water, or ground
Spill Containment: Use only by qualified personnel due to fire/explosion risks
UN Number: UN 3055
Proper Shipping Name: Alkylaluminum hydride solution, flammable
Transport hazard classification: 4.2 (Pyrophoric Liquid), 3 (Flammable Liquid)
Packing Group: I
Labels Required: Flammable, Pyrophoric
Special Provisions: Keep away from water, handle only by trained personnel
Environmental Danger: Marine pollutant
Other Information: Vehicle and container must be grounded
OSHA: Listed as hazardous chemical
TSCA: Appears on United States TSCA Inventory
SARA 302/304: Subject to emergency planning
SARA 311/312: Fire hazard, reactive hazard, immediate health hazard
SARA 313: Not reportable under SARA Title III Section 313
California Proposition 65: Not listed
WHMIS (Canada): B-6 (Reactive Flammable Material), D-1B (Toxic), E (Corrosive)
International Regulations: Subject to ADR/RID, IMDG, IATA rules for transportation of flammable, pyrophoric substances
Other Requirements: All exposure and storage requirements based on local/national regulations
