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Merck

179957

Sigma-Aldrich

Metanol

≥99.6%, Laboratory Reagent grade

Sinónimos:

Alcohol metílico

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About This Item

Fórmula lineal:
CH3OH
Número de CAS:
Peso molecular:
32.04
Beilstein:
1098229
Número CE:
Número MDL:
Código UNSPSC:
12352104
eCl@ss:
39020101
ID de la sustancia en PubChem:
NACRES:
NA.05
bp:
64.7 °C (lit.)
En este momento no podemos mostrarle ni los precios ni la disponibilidad

Nombre del producto

Metanol, Laboratory Reagent, ≥99.6%

grado

Laboratory Reagent

Nivel de calidad

densidad de vapor

1.11 (vs air)

presión de vapor

410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)

Ensayo

≥99.6%

Formulario

liquid

temp. de autoignición

725 °F

lim. expl.

36 %

impurezas

≤0.01% alkalinity (as NH3)
≤0.03% acidity (as HCOOH)
≤0.1% water

residuo de evap.

≤0.01%

índice de refracción

n20/D 1.329 (lit.)

bp

64.7 °C (lit.)

mp

−98 °C (lit.)

densidad

0.791 g/mL at 25 °C (lit.)

Formato

neat

temp. de almacenamiento

room temp

cadena SMILES

CO

InChI

1S/CH4O/c1-2/h2H,1H3

Clave InChI

OKKJLVBELUTLKV-UHFFFAOYSA-N

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Descripción general

Methanol is an industrially important alcohol.[1] Its thermochemical conversion to C2-C10 hydrocarbons in the presence of shape-selective zeolites has been reported.[2] Its oxidation on Ru-Pt catalyst system by ruthenium ad-atoms has been proposed.[3] It participates in the purification step during the synthesis of pyocyanin, a toxic compound found in Pseudomonas aeruginosa.[4]
Methanol is an organic solvent that can be synthesized from syngas in the presence of CuO/ZnO/Al2O3 catalysts.[5] It is an ideal candidate as a hydrogen source in fuel cell technology due to its high H/C ratio, low propensity for soot generation, relatively low reforming temperature and as it exists in liquid state at room temperature.[6][7] In a direct methanol fuel cell (DMFC), methanol undergoes oxidation with air to generate electricity. The olefins (ethylene or propylene) formed from methanol via MTO (methanol-to-olefins) process, can be an alternative to oil and gas to produce hydrocarbon fuels.[8]

Aplicación

Methanol may be used to compose the binary mixtures with acetonitrile in a study. Experimental evaluation of the values of dielectric constant and dielectric loss of these binary mixtures at microwave frequencies at 300°C has been reported.[1]

Palabra de señalización

Danger

Clasificaciones de peligro

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1

Órganos de actuación

Eyes,Central nervous system

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 2

Punto de inflamabilidad (°F)

49.5 °F - closed cup

Punto de inflamabilidad (°C)

9.7 °C - closed cup


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Los clientes también vieron

Dielectric behavior of acetonitrile+ methanol binary mixtures at microwave frequency.
Jogdand AP and Kadam PL.
IOSR Journal of Applied Physics, 2278-4861 (2014)
Standardized chemical synthesis of Pseudomonas aeruginosa pyocyanin.
Cheluvappa R.
Gastroenterologia y hepatologia, 22, 1350-1351 (2007)
Beyond oil and gas: the methanol economy.
Olah GA.
Angewandte Chemie (International Edition in English), 44(18), 2636-2639 (2005)
Review of methanol reforming-Cu-based catalysts, surface reaction mechanisms, and reaction schemes.
Yong ST, et al.
International Journal of Hydrogen Energy, 38(22), 9541-9552 (2013)
Catalytic carbon dioxide hydrogenation to methanol: A review of recent studies.
Jadhav SG, et al.
Chemical Engineering Research and Design, 92(11), 2557-2567 (2014)

Questions

1–2 of 2 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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