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Chemical Datasheet

ALUMINUM ALKYL HYDRIDES

 4.2 - Spontaneously combustible 4.3 - Dangerous when wet

Chemical Identifiers

CAS Number UN/NA Number DOT Hazard Label USCG CHRIS Code
none
  • 3076 (obsolete)
  • Spontaneously Combustible
  • Dangerous When Wet
 none
NIOSH Pocket Guide International Chem Safety Card
none none
NFPA 704
data unavailable
General Description
Not a specific compound ("alkyl" refers to a family of substitutent groups). A yellow liquid. Contact may severely irritate skin, eyes, and mucous membranes. May be toxic by ingestion, inhalation and skin absorption.

Hazards

Reactivity Alerts
Air & Water Reactions
Highly flammable. Exposure to water or moist air may result in a violent reaction and generation of flammable gases [Ruff, J. K. Inorg. Synth. 1967 p. 9, 34].
Fire Hazard
No information available.
Health Hazard
No information available.
Reactivity Profile
ALUMINUM ALKYL HYDRIDES are powerful reducing agents. Can decompose spontaneously at ambient temperature with explosive violence. Can ignite in air with or without oxygen enrichment [Bretherick 1979 p. 221]. At elevated temperatures, the hydride reduces carbon dioxide or sodium hydrogen carbonate to methane and ethane. These gases are the explosive products formed when CO2 extinguishers have been used during hydride fires. The 1:1 complexes of the hydride (with ether or dimethylamine) and various tetrazoles are explosive. Tetrazoles include, 2-methyl, 2-ethyl, 5-ethyl, 2-methyl-5-vinyl, 5-amino-2-ethyl, etc., US Pat. 3 396 170, 1968.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

No information available.

Response Recommendations

Isolation and Evacuation
No information available.
Firefighting
No information available.
Non-Fire Response
No information available.
Protective Clothing
No information available.
DuPont Tychem® Suit Fabrics
No information available.
First Aid
No information available.

Physical Properties

Chemical Formula: data unavailable
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: data unavailable
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity: data unavailable
Boiling Point: data unavailable
Molecular Weight: data unavailable
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH: data unavailable

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

No PAC information available.

Regulatory Information

EPA Consolidated List of Lists

No regulatory information available.

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

Chemical Name CAS Number Threshold Quantity (TQ)
Alkylaluminums Varies 5000 pounds

(OSHA, 2019)

Alternate Chemical Names