Lithium alumanuide

AlH4Li

lithium alumanuide

CAS16853-85-3
GHS02 Gefahrensymbol: Entzündbar – Flamme
GHS05 Gefahrensymbol: Ätzend – Ätzwirkung
Danger

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Identification

CAS Number
16853-85-3
EC Number
240-877-9
UN Number
1410
Index Number
001-002-00-4
PubChem CID
28112

Physical-chemical properties

Molecular Formula
AlH4Li
Molar Mass
38.00 g/mol
IUPAC Name
lithium alumanuide

Chemical Identifiers

InChI
InChI=1S/Al.Li.4H/q-1;+1;;;;
InChI Key
OCZDCIYGECBNKL-UHFFFAOYSA-N

Overview

Lithium alumanide (CAS 16853-85-3) is a highly reactive metal hydride compound with strong reducing properties and water-reactive characteristics. This versatile reducing agent, also known by its IUPAC name lithium alumanide, represents one of the most important hydride reagents in modern chemical synthesis. With the molecular formula AlH4Li and a molecular weight of 38 g/mol, this white crystalline solid serves as a powerful tool in organic and inorganic chemistry applications. Unlike simple alkali metals such as lithium, lithium alumanide offers controlled reducing capabilities while maintaining excellent selectivity in chemical transformations. The compound exhibits exceptional reactivity with water and protic solvents, releasing hydrogen gas and forming corresponding hydroxides. This water-reactive nature, classified under Water-react. 1 according to GHS standards, requires careful handling protocols and specialized storage conditions. The substance also demonstrates strong corrosive properties (Skin Corr. 1A), necessitating appropriate personal protective equipment and engineering controls during handling operations. Industrial applications of lithium alumanide span multiple sectors, particularly in pharmaceutical intermediate synthesis where its selective reducing properties enable the production of complex organic molecules. The compound also finds extensive use in metal processing industries for the reduction of metal halides to produce high-purity metals and alloys. Additionally, it serves as a hydrogen source in specialized applications requiring controlled hydrogen generation. The material falls under ADR Class 4.3 for transportation purposes, reflecting its water-reactive nature and associated safety considerations. Proper packaging, labeling with GHS02 and GHS05 pictograms, and adherence to dangerous goods regulations ensure safe distribution throughout European markets. OYSI maintains strategic inventory levels of lithium alumanide to support diverse industrial requirements across Europe.

Safety & Classification

Danger
Classification:

Water-react. 1; Skin Corr. 1A

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H260

In contact with water releases flammable gases which may ignite spontaneously.

H314

Causes severe skin burns and eye damage.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

  • +P302IF ON SKIN:
  • +P352Wash with plenty of water.
  • +P361Take off immediately all contaminated clothing.
  • +P313Get medical advice/attention.

Related hazard statements:

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

  • +P305IF IN EYES:
  • +P351Rinse cautiously with water for several minutes.
  • +P338Remove contact lenses, if present and easy to do. Continue rinsing.
  • +P313Get medical advice/attention.

Related hazard statements:

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number1410
ADR Class4.3
Packing GroupI
Tunnel CodeE
Proper Shipping NameLithiumaluminiumhydrid, fest
Marine PollutantNo

Frequently Asked Questions

What is lithium alumanuide?

Lithium alumanuide is a powerful chemical reducing agent with the formula AlH4Li and molecular weight of 38 g/mol. This inorganic compound serves as a source of hydride ions in various chemical reactions. It belongs to the family of metal hydrides and is classified as a water-reactive substance (Water-react. 1) and skin corrosive material (Skin Corr. 1A), making it a dangerous chemical requiring specialized handling procedures.

What are the physicochemical properties of lithium alumanuide?

Lithium alumanuide is a solid crystalline compound that reacts violently with water, releasing flammable hydrogen gas. It appears as a white to grayish powder and is highly moisture-sensitive, requiring anhydrous conditions for stability. The compound decomposes in the presence of protic solvents and must be handled under inert atmosphere. Its molecular formula AlH4Li gives it strong reducing properties and makes it incompatible with oxidizing agents.

What is lithium alumanuide used for?

Lithium alumanuide is primarily used as a reducing agent in organic synthesis and pharmaceutical manufacturing. It serves in the reduction of various functional groups including aldehydes, ketones, and esters to their corresponding alcohols. The compound is also employed in the preparation of other metal hydrides and as a hydrogen source in specialized applications. Its strong reducing capabilities make it valuable in research laboratories for complex organic transformations.

How to handle lithium alumanuide safely?

Lithium alumanuide must be handled with extreme caution using appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work should be conducted in a well-ventilated area or under fume hood, away from water and moisture sources. An inert atmosphere (nitrogen or argon) is essential during handling to prevent unwanted reactions. Emergency shower and eyewash stations should be readily accessible due to its corrosive nature.

How to store lithium alumanuide correctly?

Lithium alumanuide must be stored in airtight containers under inert atmosphere, away from water, moisture, and incompatible materials. Storage areas should be cool, dry, and well-ventilated, separated from oxidizing agents, acids, and water sources. The compound should be kept in its original packaging with proper labeling and stored in designated areas for water-reactive substances. Regular inspection of containers for signs of degradation or moisture ingress is essential.

What to do in case of contact with lithium alumanuide?

Immediate action is required for any contact with lithium alumanuide. For skin contact, remove contaminated clothing and flush affected area with plenty of water for at least 15 minutes, then seek medical attention immediately due to its corrosive nature. In case of eye contact, rinse thoroughly with water for at least 15 minutes and get medical help promptly. If inhaled, move to fresh air and consult a physician if symptoms develop.

How to dispose of lithium alumanuide properly?

Lithium alumanuide waste must be disposed of according to local and national hazardous waste regulations as a water-reactive and corrosive substance. Small quantities should be carefully quenched with anhydrous alcohols under controlled conditions by trained personnel only. The resulting waste must be collected and disposed of through licensed hazardous waste contractors. Never dispose of this material in regular waste streams or pour down drains due to its dangerous properties.

How to transport lithium alumanuide?

Lithium alumanuide is classified as ADR Class 4.3 (substances which, in contact with water, emit flammable gases), Packing Group I, indicating high danger level. Transportation requires proper dangerous goods packaging, labeling with appropriate hazard pictograms (GHS02, GHS05), and documentation. Vehicles must carry emergency equipment and drivers need ADR certification. The substance must be protected from moisture during transport and handled according to dangerous goods regulations.

Is lithium alumanuide subject to specific regulations?

Lithium alumanuide is subject to various chemical regulations including CLP classification as Water-react. 1 and Skin Corr. 1A with 'Danger' signal word. It falls under REACH regulation for chemical registration and safety assessment, though it is not classified as SVHC (Substance of Very High Concern). Transport is regulated under ADR for dangerous goods, and workplace handling must comply with occupational safety standards for hazardous chemicals.

Where to buy lithium alumanuide in Europe?

Lithium alumanuide is available through OYSI, a European distributor specializing in technical chemicals and laboratory reagents. As a dangerous substance requiring specialized handling, it is typically supplied to qualified industrial users, research institutions, and laboratories with appropriate safety infrastructure. Purchasing requires compliance with chemical regulations and proper documentation. Contact OYSI directly for availability, technical specifications, and regulatory requirements for your specific application.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.