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87741

Sigma-Aldrich

Hidróxido de tetrametilamonio pentahydrate

≥95.0% (T)

Sinónimos:

TMAH Pentahydrate

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25 G
$57.000
100 G
$186.000
500 G
$544.000

$57.000

Fecha estimada de envío17 de mayo de 2025

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25 G
$57.000
100 G
$186.000
500 G
$544.000

About This Item

Fórmula lineal:
(CH3)4N(OH) · 5H2O
Número de CAS:
10424-65-4
Peso molecular:
181.23
Beilstein:
3714235
Número CE:
200-882-9
Número MDL:
MFCD00149566
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
57653264
NACRES:
NA.22

$57.000

Fecha estimada de envío17 de mayo de 2025

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densidad de vapor

1.1 (vs air)

Nivel de calidad

200

Ensayo

≥95.0% (T)

Formulario

crystals

temp. de autoignición

878 °F

lim. expl.

36 %

impurezas

≤0.1% halides (as chloride)

pH

(14 at ca.1,000 g/l at 20 °C (68 °F))

mp

67-70 °C (lit.)

solubilidad

soluble (2,200 g/l at 15 °C (59 °F))

trazas de anión

sulfate (SO42-): ≤1000 mg/kg

grupo funcional

amine

cadena 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

Clave InChI

MYXKPFMQWULLOH-UHFFFAOYSA-M

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Descripción general

Tetramethylammonium hydroxide pentahydrate is a clathrate hydrate, which shows high proton conductivity.[1][2] It can readily uptake carbon dioxide. It is a promising candidate for energy devices, gas separation, and gas storage applications.[3]

Aplicación

Tetramethylammonium hydroxide pentahydrate is a clathrate hydrate, which shows high proton conductivity.[1][2] It can readily uptake carbon dioxide. It is a promising candidate for energy devices, gas separation, and gas storage applications.[3]
Tetramethylammonium hydroxide pentahydrate is a clathrate hydrate, which shows high proton conductivity.[1][2] It can readily uptake carbon dioxide. It is a promising candidate for energy devices, gas separation, and gas storage applications.[3]

Tetramethylammonium hydroxide pentahydrate may be used in the preparation of a mesoporous molecular sieve belonging to the MCM-41 (mobil composition of matter No. 41) category with silica to (tetrahedral) aluminum ratio as low as 8.5:1.[4]

Precaución

material is sensitive vs air/moisture. filling, handling and storage under Argon!

Palabra de señalización

Danger

Clasificaciones de peligro

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

Órganos de actuación

Central nervous system, Liver,thymus

Código de clase de almacenamiento

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

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

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

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Certificados de análisis (COA)

Lot/Batch Number
BCCM0474
BCCL4286
BCCJ9161
BCCH7123
BCCG8584

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High conductivity and phase transitions of tetramethylammonium hydroxide pentahydrate,(CH3) 4NOH? 5H2O.
Kuriyama N, et al.
Solid State Ionics, 40, 906-909 (1990)
Synthesis of a mesoporous MCM-41 material with high levels of tetrahedral aluminium.
Schmidt R, et al.
Journal of the Chemical Society. Chemical Communications, (12), 1493-1494 (1994)
NMR studies of molecular motion in tetramethylammonium hydroxide pentahydrate.
Ratcliffe CI, et al.
J. Incl. Phenom. Mol. Recog. Chem., 8(1-2), 159-175 (1990)
Proton Conduction of Tetramethylammonium Hydroxide Pentahydrate,(CH 3) 4 NOH? 5 H 2 O, and Its Application to Nickel?Metal Hydride Battery.
Kuriyama N, et al.
Journal of the Electrochemical Society, 137(1), 355-356 (1990)
Markus Welcker et al.
Genes & development, 27(23), 2531-2536 (2013-12-04)
The Fbw7 tumor suppressor targets a broad network of proteins for ubiquitylation. Here we show critical functions for Fbw7 dimerization in regulating the specificity and robustness of degradation. Dimerization enables Fbw7 to target substrates through concerted binding to two suboptimal
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Questions

1–3 of 3 Questions  

  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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  3. Regarding CAS.No.: 10424-65-4, please inform us the expiry/retest date as well as storage temperature.

    1 answer

    1. This product can be stored at room temperature.
      This product is not assigned an expiration date or recommended retest date. Customers should routinely inspect products with no expiration date or recommended retest date to ensure they perform as expected. These products are also subject to a one-year warranty from the date of shipment.

      For more information, you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.

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