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86863

Sigma-Aldrich

Tetrabutylammonium hydroxide solution

53.5-56.5% in H2O

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Synonym(s):
N,N,N-Tributyl-1-butanaminium hydroxide, TBAH 40, Tetra-n-butylammonium hydroxide
Linear Formula:
(CH3CH2CH2CH2)4N(OH)
CAS Number:
2052-49-5
Molecular Weight:
259.47
Beilstein:
3571228
MDL number:
MFCD00009425
PubChem Substance ID:
57653201
NACRES:
NA.21

form

liquid

Quality Level

200

concentration

53.5-56.5% in H2O

impurities

≤0.2% halides (as bromide)

density

0.995 g/cm3

anion traces

sulfate (SO42-): ≤2000 mg/kg

SMILES string

[OH-].CCCC[N+](CCCC)(CCCC)CCCC

InChI

1S/C16H36N.H2O/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;/h5-16H2,1-4H3;1H2/q+1;/p-1

InChI key

VDZOOKBUILJEDG-UHFFFAOYSA-M

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This Item
17878086880230189
Tetrabutylammonium hydroxide solution 53.5-56.5% in H2O

Sigma-Aldrich

86863

Tetrabutylammonium hydroxide solution

Tetrabutylammonium hydroxide solution 40 wt. % in H2O

Sigma-Aldrich

178780

Tetrabutylammonium hydroxide solution

Tetrabutylammonium hydroxide solution technical, ~40% in H2O (~1.5 M)

Sigma-Aldrich

86880

Tetrabutylammonium hydroxide solution

Tetrabutylammonium hydroxide solution 1.0 M in methanol

Sigma-Aldrich

230189

Tetrabutylammonium hydroxide solution

concentration

53.5-56.5% in H2O

concentration

40 wt. % in H2O

concentration

~40% in H2O (~1.5 M)

concentration

1.0 M in methanol

impurities

≤0.2% halides (as bromide)

impurities

-

impurities

≤3% halides (as bromide)

impurities

-

density

0.995 g/cm3

density

0.99 g/mL at 25 °C

density

0.995 g/cm3

density

0.83 g/mL at 25 °C

anion traces

sulfate (SO42-): ≤2000 mg/kg

anion traces

-

anion traces

sulfate (SO42-): ≤3000 mg/kg

anion traces

-

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

General description

The product is 53.5-56.5% solution of tetrabutylammonium hydroxide in H2O. Tetrabutylammonium hydroxide has been synthesized from tetrabutylammonium iodide. TBAOH dissolved in anhydrous isopropyl alcohol is widely employed as titrant for weak acids.

Application

Tetrabutylammonium hydroxide solution (TBAOH) may be used in the following studies:
  • For the dissolution of 10 wt% cellulose under room temperature conditions.
  • As a catalyst during the synthesis of 1,2,4-oxadiazoles.
  • Preparation of TBAOH salts of fatty acids.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302 - H314 - H317

Hazard Classifications

Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1 - Skin Sens. 1

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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B B Y Lau et al.
Bioresource technology, 197, 252-259 (2015-09-08)
Aqueous solutions of tetrabutylphosphonium hydroxide have been evaluated as pretreatment media for rice husks, prior to sulphuric acid hydrolysis or cellulase enzymatic hydrolysis. Varying the water:tetrabutylphosphonium hydroxide ratio varied the rate of delignification, as well as silica, lignin and cellulose
Construction of 3, 5-substituted 1, 2, 4-oxadiazole rings triggered by tetrabutylammonium hydroxide: a highly efficient and fluoride-free ring closure reaction of O-acylamidoximes.
Otaka H, et al.
Tetrahedron Letters, 55(5), 979-981 (2014)
Tetrabutylammonium hydroxide as titrant in nonaqueous media.
Harlow GA, et al.
Analytical Chemistry, 28(5), 787-791 (1956)
Tetrabutylammonium Hydroxide as Titrant for Acids in Nonaqueous Solutions.
Cundiff RH and Markunas PC.
Analytical Chemistry, 28(5), 792-797 (1956)
Foaming and emulsifying properties of fatty acids neutralized by tetrabutylammonium hydroxide.
Fameau AL, et al.
Colloids and Surfaces. A, Physicochemical and Engineering Aspects, 403, 87-95 (2012)
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