二异丁基氢化铝

Description

Diisobutylaluminum hydride · CAS 1191-15-7 · C8H19Al. UNII H2EJ47H11A. Boiling Point: 105 °C @ 0.2 mm Hg; Melting Point: -80 °C (Freezing point); Melting Point: -80 °C.

Identification

CAS Registry Number	1191-15-7
PubChem CID	14487
Molecular formula	C8H19Al
IUPAC name	bis(2-methylpropyl)alumane
UNII (FDA)	H2EJ47H11A

Computed Descriptors

Molecular Weight	142.22
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	4
Exact Mass	142.1302140
Monoisotopic Mass	142.1302140
Topological Polar Surface Area	0
Heavy Atom Count	9
Formal Charge	0
Complexity	49.6

Physical & Chemical Properties

Boiling Point	105 °C @ 0.2 mm Hg
Melting Point	-80 °C (Freezing point)
Melting Point	-80 °C
Density	0.798 g/mL
Density	0.798 @25 °C

Physical description & handling notes

• CBI
• Colorless liquid; [Hawley]
• Colorless liquid
• Miscible with hydrocarbon solvents
• Low melting solids or colorless, volatile liquids. /Alkylaluminum halides/
• Less sensitive than trialkylaminums to oxidation upon exposure to air. /Alkylaluminum halides/

GHS Hazard Classification

Reported hazard statements	H250 (97.7%), H260 (93.1%), H314 (100%), H318 (83.2%)

Documented Uses

• Used as a reducing agent (pharmaceuticals, aldehydes, amides, and olefins), a polymerization catalyst for polyethylene, and an intermediate in silicones, certain polymers, and organic acid synthesis; [HSDB] Organic aluminum compounds are some of the most important, highest volume, highest value organometallic compounds in production. [Ullmann]
• ... Reduction of the aldehyde or ketone carbonyl function to an alcohol.
• Reducing agent in pharmaceuticals
• REDUCING AGENT, EG, FOR ALDEHYDES, AMIDES & OLEFINS
• POLYMERIZATION CATALYST FOR POLYETHYLENE
• ...Intermediates in silicones, certain polymers and organic acid synthesis.

Synonyms

Dibal-H; bis(2-methylpropyl)alumane; Diisobutylhydroaluminum; Al-Diisobutyl; Al-Alchili; Diisobutylaluminum; Hydrodiisobutylaluminum; Bis(isobutyl)hydroaluminum; Aluminum, diisobutylhydro-; Aluminum, hydrodiisobutyl-; H2EJ47H11A; DTXSID4041866; Hydrobis(2-methylpropyl)aluminum; DIBALH cpd; RefChem:134038; DTXCID2021866

Frequently Asked Questions

What are the CAS number and molecular formula of Diisobutylaluminum hydride?

CAS 1191-15-7; molecular formula C8H19Al; molecular weight — g/mol.

What other names is Diisobutylaluminum hydride known by?

Dibal-H, bis(2-methylpropyl)alumane, Diisobutylhydroaluminum, Al-Diisobutyl, Al-Alchili, Diisobutylaluminum.

Is Diisobutylaluminum hydride classified as hazardous?

Hazard statements reported: H250, H260, H314, H318.

What are the key physical properties of Diisobutylaluminum hydride?

Boiling Point: 105 °C @ 0.2 mm Hg; Melting Point: -80 °C (Freezing point); Melting Point: -80 °C; Density: 0.798 g/mL.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.