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426318

Sigma-Aldrich

Tetramethylammonium hydroxide solution

ACS reagent

Synonym(s):

N,N,N-trimethyl-methanaminium hydroxide, TMAH, TMAOH

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About This Item

Linear Formula:
(CH3)4N(OH)
CAS Number:
75-59-2
Molecular Weight:
91.15
Beilstein:
3558708
MDL number:
MFCD00008280
UNSPSC Code:
12352100
PubChem Substance ID:
24866695
NACRES:
NA.21

grade

ACS reagent

Quality Level

200

form

liquid

concentration

1.0 M±0.02 M in H2O

ign. residue

≤5 ppm

color

APHA: ≤10

refractive index

n20/D 1.3497

bp

100 °C

density

1.005 g/mL at 25 °C

anion traces

chloride (Cl-): ≤0.03%

cation traces

K: ≤2 ppm
Na: ≤2 ppm

SMILES string

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

InChI

1S/C4H12N.H2O/c1-5(2,3)4;/h1-4H3;1H2/q+1;/p-1

InChI key

WGTYBPLFGIVFAS-UHFFFAOYSA-M

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Application

Tetramethylammonium hydroxide solution can be used as:
  • A reagent in the organocatalyzed photoinduced Birch reduction of arenes to 1,4-cyclohexadienes.
  • A catalyst to synthesize 1,2-dihydro-1-arylnaphtho-oxazine-3-one derivatives via one-pot three-component condensation reaction of 2-naphthol, aromatic aldehydes, and urea.
  • A peptizing agent for magnetite nanoparticles to promote repulsive stabilization forces.
  • A template in the hydrothermal synthesis of hierarchical zeolite T aggregates with different sizes.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1B - STOT RE 2 Dermal - STOT SE 2

Target Organs

Central nervous system, Liver,thymus

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCW5220
MKCV2454
MKCS1253
MKCQ2224
MKCN0479

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Tetraethylammonium hydroxide solution ~1.0 M (CH3CH2)4NOH in H2O, electrochemical grade

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Tetraethylammonium hydroxide solution

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Potassium homeostasis is crucial for living cells. In the yeast Saccharomyces cerevisiae, the uptake of potassium is driven by the electrochemical gradient generated by the Pma1 H(+)-ATPase, and this process represents a major consumer of the gradient. We considered that
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Bioresource technology, 117, 186-192 (2012-05-23)
The aim of this study was to explore the synergies of laccase, a ligninolytic enzyme, with cellulose and hemicellulase amendments on ensiled corn stover. Molecular signals of lignin decomposition were observed by tetramethylammonium hydroxide thermochemolysis and gas chromatography-mass spectroscopy (TMAH-GC-MS)
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Langmuir : the ACS journal of surfaces and colloids, 28(4), 2091-2098 (2011-11-08)
A new water-soluble conjugated polymer containing fluorene and boron-dipyrromethene repeat units in the backbones (PBF) that exhibits red emission was synthesized and characterized. Cationic PBF forms uniform nanoparticles with negatively charged disodium salt 3,3'-dithiodipropionic acid (SDPA) in aqueous solution through
Man Xu et al.
Environmental science & technology, 47(1), 110-118 (2012-06-12)
Elucidating dissolution kinetics and mechanisms at carbonate mineral-water interfaces is essential to many environmental and geochemical processes, including geologic CO(2) sequestration in deep aquifers. In the present work, effects of background electrolytes on dolomite (CaMg(CO(3))(2)) reactivity were investigated by measuring
Mei Fang et al.
Nanotechnology, 23(14), 145601-145601 (2012-03-22)
Magnetite nanoparticles have been prepared by co-precipitation using a custom-designed jet mixer to achieve rapid mixing (RM) of reactants in a timescale of milliseconds. The quick and stable nucleation obtained allows control of the particle size and size distribution via
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