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201073

Sigma-Aldrich

Aluminum-tri-sec-butoxide

97%

Synonym(s):

Aluminum sec-butoxide

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About This Item

Linear Formula:
Al[OCH(CH3)C2H5]3
CAS Number:
Molecular Weight:
246.32
Beilstein:
3910908
EC Number:
MDL number:
UNSPSC Code:
12352103
PubChem Substance ID:
NACRES:
NA.23

Quality Level

Assay

97%

form

liquid

autoignition temp.

763 °F

expl. lim.

9.8 %

reaction suitability

core: aluminum

bp

200-206 °C/30 mmHg (lit.)

density

0.967 g/mL at 25 °C (lit.)

SMILES string

CCC(C)O[Al](OC(C)CC)OC(C)CC

InChI

1S/3C4H9O.Al/c3*1-3-4(2)5;/h3*4H,3H2,1-2H3;/q3*-1;+3

InChI key

WOZZOSDBXABUFO-UHFFFAOYSA-N

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General description

Aluminum-tri-sec-butoxide is a metal organic chemical vapor deposition precursor and a chelating agent. It is widely used as a sol-gel precursor to deposit alumina thin films by atomic layer deposition method.

Application

Aluminum-tri-sec-butoxide can be used as a precursor :
  • To prepare Al2O3-based quasi-solid electrolyte for Li metal anodes. This ensures long cycle lifetime and high constant current density.
  • To synthesize nanospinel MgAl2O4 powder by a sol–gel method at low-temperature processing.
  • To fabricate transparent superhydrophobic aluminum oxide thin films to prevent soiling of solar panels.
  • To synthesize mesoporous alumina with large surface area to fabricate a functional interlayer for separator coating in a Li–S battery. It helps to suppress the shuttle effect and enhances cyclic stability andrateperformance.

Features and Benefits

  • Suitable for thin film deposition
  • Solubility in various solvents allows for the facile preparation of solution-based precursors
  • High thermal stability
  • Facilitates the anchoring of catalytic metal nanoparticles onto substrates

Has been utilized in making high-surface-area alumina using 2,4-pentanedione (Aldrich product P775-4) as a chelating agent.

Pictograms

FlameSkull and crossbones

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

78.8 °F - closed cup

Flash Point(C)

26 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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