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T7505

Sigma-Aldrich

Tetramethylammonium hydroxide pentahydrate

≥97%

Synonim(y):

TMAH

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5 G
152,00 zł
25 G
477,00 zł
100 G
1390,00 zł
1 KG
9010,00 zł

152,00 zł

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Wszystkie zdjęcia(5)

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5 G
152,00 zł
25 G
477,00 zł
100 G
1390,00 zł
1 KG
9010,00 zł

About This Item

Wzór liniowy:
(CH3)4N(OH) · 5H2O
Numer CAS:
10424-65-4
Masa cząsteczkowa:
181.23
Beilstein:
3714235
Numer WE:
200-882-9
Numer MDL:
MFCD00149566
Kod UNSPSC:
12161900
Identyfikator substancji w PubChem:
24900455
NACRES:
NA.25

152,00 zł

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gęstość pary

1.1 (vs air)

Poziom jakości

200

opis

non-ionic

Próba

≥97%

temp. samozapłonu

878 °F

masa cząsteczkowa

181.23 g/mol

granice wybuchowości

36 %

mp

67-70 °C (lit.)

ciąg SMILES

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

InChI

1S/C4H12N.6H2O/c1-5(2,3)4;;;;;;/h1-4H3;6*1H2/q+1;;;;;;/p-1

Klucz InChI

MYXKPFMQWULLOH-UHFFFAOYSA-M

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Opis ogólny

Tetramethylammonium hydroxide (TMAOH) is an ion-pairing agent that is usually used in analytical chemistry. It is used in the analysis of marine compounds by thin-layer chromatography-pyrolysis-gas chromatography-mass spectrometry (TLC-pyrolysis-GC/MS) and thermal desorption/capillary GC/inductively coupled plasma mass spectrometry. TMAOH is used in the capillary zone electrophoresis technique for the separation of inorganic anions. Some studies report the oligonucleotide reassociation in the presence of TMAOH. TMAOH aids in the synthesis of organic and inorganic compounds, such as vinyl halides and tetramethylammonium dithiocarboxylates. It is useful in the preparation of iron oxide nanoparticles for use as magnetic resonance imaging contrast agents.

Zastosowanie

Tetramethylammonium hydroxide pentahydrate has been used in a study to assess strains of Pseudomnas species by a single-step gas chromatographic characterization procedure. [1] It has also been used in a study to investigate solid-state metal hydride batteries nickel oxyhydroxide-metal hydride and manganese dioxide-metal hydride. [2]
Tetramethylammonium hydroxide pentahydrate has been used in the synthesis of silicalite-1 seed crystals.
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Hasło ostrzegawcze

Danger

Zwroty wskazujące rodzaj zagrożenia

H300 + H310,H314,H370,H372,H411

Klasyfikacja zagrożeń

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

Organy docelowe

Central nervous system, Liver,thymus

Kod klasy składowania

6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials

Klasa zagrożenia wodnego (WGK)

WGK 3

Temperatura zapłonu (°F)

Not applicable

Temperatura zapłonu (°C)

Not applicable

Środki ochrony indywidualnej

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges

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Certyfikaty analizy (CoA)

Lot/Batch Number
MKCW6012
MKCV3693
MKCV3959
MKCS0870
MKCQ0769

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T J Wade et al.
Applied microbiology, 27(2), 303-311 (1974-02-01)
Strains of saccharolytic and nonsaccharolytic Pseudomonas species were examined by a new single-step gas chromatographic characterization procedure. Cells were digested in a methanolic solution of tetramethylammonium hydroxide pentahydrate, and the digestates were subjected to gas-liquid chromatographic analysis. The chromatograms were
ZuLiang Chen et al.
Analytical and bioanalytical chemistry, 375(1), 182-187 (2003-01-10)
In this paper, the use of an ion-pairing reagent to improve the separation selectivity of inorganic anions in CZE was demonstrated by the addition of tetramethylammonium hydroxide (TMAOH) to the electrolyte. The separation of inorganic anions (Cl(-), I(-), Br(-), NO(2)(-)
High conductivity and phase transitions of tetramethylammoniumhydroxidepentahydrate, (CH3)4NOH?5H2O
Kuriyama, N., et al.
Solid State Ionics, 40-41, 906-906 (1990)
Solid-state metal hydride batteries using tetramethylammoniumhydroxidepentahydrate
Kuriyama, N., et al.
Solid State Ionics, 53-56, 688-688 (1992)
J Vercauteren et al.
Analytical chemistry, 73(7), 1509-1514 (2001-04-26)
The extraction and preconcentration capabilities of a new extraction technique, stir bar sorptive extraction, were combined with the separation power of capillary gas chromatography (CGC) and the low limits of detection (LODs) of inductively coupled plasma mass spectrometry (ICPMS) for
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  1. 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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  2. 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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