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Product Name: Lithium Aluminum Hydride
Chemical Formula: LiAlH4
CAS Number: 16853-85-3
Synonyms: LAH, Lithium tetrahydroaluminate
Recommended Use: Laboratory reagent, reducing agent in organic synthesis
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Emergency Contact: [Local Emergency Number]
GHS Classification: Water-reactive, flammable solid, corrosive to metals, causes burns to skin and eyes
Hazard Statements: In contact with water, releases flammable gases which may ignite spontaneously. Causes severe skin burns and eye damage. Reacts violently with many materials.
Pictograms: Flame, Corrosion, Gas Cylinder, Exclamation mark
Signal Word: Danger
Precautionary Statements: Keep away from moisture, wear protective gear, handle under inert atmosphere, avoid breathing dust or fumes.
Chemical Name: Lithium Aluminum Hydride
Concentration: 97-100%
CAS Number: 16853-85-3
Impurities: May include trace hydroxides, hydrides, or oxides from manufacturing
General Advice: Remove contaminated clothes and shoes. Get immediate medical help.
Inhalation: Move to fresh air. Give oxygen if breathing is hard. Get medical help without delay.
Skin Contact: Brush off dry material, do not add water. Wash affected area with copious running water for at least 15 minutes. Immediate medical attention required.
Eye Contact: Rinse with water for 20 minutes or more. Hold eyelids apart. Get urgent medical treatment.
Ingestion: Rinse mouth, do not induce vomiting. Do not give anything by mouth if person is unconscious. Seek prompt medical attention.
Note to Doctor: Treat symptoms, expect corrosive damage.
Suitable Extinguishing Media: Use dry sand, Class D fire extinguisher. Do not use water, foam or CO2.
Specific Hazards: Liberates hydrogen gas on contact with water, which forms explosive mixtures with air.
Protective Equipment: Wear self-contained breathing apparatus. Use full protective suit.
Fire Fighting Instructions: Remove containers from fire area if safe. Isolate area and avoid breathing fumes. Cool surrounding area with dry agents.
Combustion Products: Emits toxic fumes of lithium oxide, aluminum oxides, hydrogen gas.
Personal protection: Evacuate unnecessary personnel. Use protective clothing, gloves, goggles, and positive pressure respirator.
Environmental Precautions: Prevent release to drains, soil, or surface waters.
Spill Response: Cover spill with dry sand or inert material. Do not use water to clean.
Cleanup method: Scoop up and place in a dry container under nitrogen or argon.
Decontamination: Clean contaminated surfaces with dry materials, avoid water or moisture.
Handling: Work in a dry, inert atmosphere such as a glove box or dry box. Avoid breathing dust, avoid skin or eye contact. Always ground containers when transferring.
Storage: Store in tightly sealed original container under dry argon or nitrogen atmosphere. Keep away from moisture, acids, oxidizers, or heat sources. Store in a cool, dry area with ventilation.
Incompatible Materials: Water, acids, oxidizers, halogens, alcohols, protic solvents.
Engineering Controls: Use local exhaust ventilation, glove boxes, or fume hoods. Provide emergency eye wash and safety shower.
Personal Protection: Wear chemical-resistant gloves (nitrile, butyl rubber), flame-retardant lab coat, full face shield, and safety goggles.
Respiratory Protection: Use NIOSH-approved half-mask or full-face respirator with particulate filter in absence of ventilation.
Hygiene: Do not eat, drink, or smoke in work area. Wash hands thoroughly after handling.
Appearance: White to gray crystalline powder
Odor: Odorless
Melting Point: Decomposes at 125-150°C
Boiling Point: Not applicable (decomposes)
Molecular Weight: 37.95 g/mol
Solubility: Reacts violently with water, soluble in ethers
Vapor Pressure: Not applicable
Density: 0.917 g/cm³
pH: Not applicable
Partition Coefficient: Not available
Evaporation Rate: Not applicable
Chemical Stability: Stable if kept dry and in inert atmosphere, decomposes with moisture or air exposure.
Reactivity: Reacts violently with water, acids, oxidizers, and protic solvents.
Hazardous Decomposition: Lithium hydroxide, aluminum hydroxide, hydrogen gas
Polymerization: Will not occur.
Incompatible Materials: Water, acids, halogens, oxidizing agents, alcohols, protic solvents.
Routes of Exposure: Inhalation, dermal, eye, ingestion
Acute Effects: Severe skin, eye, respiratory, and digestive tract burns. Inhalation causes coughing, burning sensation, sore throat, possible pulmonary edema.
Chronic Effects: No strong evidence for chronic toxicity, but repeated exposure damages tissue.
Toxicity Data: Not fully established. LD50 (oral, rat): Not available due to corrosive nature.
Irritation: Causes severe burns to eyes and skin.
Additional Effects: Delayed onset of pulmonary edema possible after inhalation.
Environmental Hazards: Highly reactive, forms caustic compounds when released to water, dangerous to aquatic organisms by altering pH and releasing hydrogen gas.
Biodegradability: Not relevant; decomposes rapidly with moisture.
Bioaccumulation Potential: Not expected due to hydrolysis and reactivity.
Mobility in Soil: Strongly reacts, not expected to persist in soil or water.
Aquatic Toxicity: No data on direct aquatic toxicity, but dangerous due to reactivity and pH shifts.
Waste Treatment Methods: React small amounts slowly with isopropanol under inert atmosphere, then neutralize with dilute acid and water. For large amounts, arrange disposal through licensed hazardous waste specialist.
Disposal of Contaminated Packaging: Dispose of as hazardous waste, do not reuse.
Regulations: Follow national, regional, and local laws for hazardous chemical disposal.
Precautions: Never dispose into drains, surface water, or sewers.
UN Number: UN 1411
Proper Shipping Name: Lithium aluminum hydride
Hazard Class: 4.3 (Substances which in contact with water emit flammable gases)
Packing Group: I (high danger)
Labels: Flammable solid, dangerous when wet
Marine Pollutant: No specific data but strongly reactive
Special Precautions: Keep dry, segregate from acids, oxidizers, and water sources. Transport in sealed containers, labeled to indicate danger if wetted.
OSHA: Listed as hazardous material. Requires hazard communication standards.
TSCA: Listed.
EU Regulation: REACH registered, requires handling precautions under CLP Regulation (EC) No 1272/2008.
Canadian WHMIS Classification: Class B, Division 6, Class E
Other International Regulations: Subject to restrictions as a dangerous good under IATA, IMDG, ADR.
SARA 313: Not subject to reporting.
Additional Information: Local authorities may have special requirements for handling, storage, and exposure limits. Always consult local regulations for details.
