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178780

Sigma-Aldrich

Tetrabutylammonium hydroxide solution

greener alternative

40 wt. % in H2O

Synonym(s):

N,N,N-Tributyl-1-butanaminium hydroxide, TBAH 40, Tetra-n-butylammonium hydroxide

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About This Item

Linear Formula:
(CH3CH2CH2CH2)4N(OH)
CAS Number:
2052-49-5
Molecular Weight:
259.47
Beilstein:
3571228
MDL number:
MFCD00009425
UNSPSC Code:
12352100
PubChem Substance ID:
24850769
NACRES:
NA.21
concentration:
40 wt. % in H2O
Pricing and availability is not currently available.

form

liquid

Quality Level

200

greener alternative product characteristics

Catalysis
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concentration

40 wt. % in H2O

refractive index

n20/D 1.405

density

0.99 g/mL at 25 °C

functional group

amine

greener alternative category

Aligned,

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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General description

Tetrabutylammonium hydroxide is a quaternary ammonium salt mainly used as a strong base and phase-transfer catalyst.[1] It can be synthesized from tetrabutylammonium iodide.[2]
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Application

Tetrabutylammonium hydroxide solution (TBAOH) may be used in the following studies:
  • For the dissolution of 10wt% cellulose under room temperature conditions.[3]
  • As a catalyst during the synthesis of 1,2,4-oxadiazoles.[4]
  • Preparation of TBAOH salts of fatty acids.[5]

Caution

May crystallize below 30°C
Gentle warming and swirling should redissolve the solid

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H314

Hazard Classifications

Eye Dam. 1 - Skin Corr. 1

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCM4177
BCCL0432
BCCJ8688
BCCH7172
BCCC2507

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Tetrabutylammonium Hydroxide
Bos ME.
e-EROS Encyclopedia of Reagents for Organic Synthesis. (2001)
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)
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
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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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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