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360473

Sigma-Aldrich

2-Butanona

ACS reagent, ≥99.0%

Sinónimos:

Etilmetilcetona, MEK, Metiletilcetona

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About This Item

Fórmula lineal:
C2H5COCH3
Número de CAS:
78-93-3
Peso molecular:
72.11
Beilstein:
741880
Número CE:
201-159-0
Número MDL:
MFCD00011648
Código UNSPSC:
12352115
ID de la sustancia en PubChem:
329755259
NACRES:
NA.21
bp:
80 °C (lit.)
En este momento no podemos mostrarle ni los precios ni la disponibilidad

grado

ACS reagent

Nivel de calidad

200

densidad de vapor

2.49 (vs air)

presión de vapor

71 mmHg ( 20 °C)

Ensayo

≥99.0%

Formulario

liquid

temp. de autoignición

960 °F

lim. expl.

10.1 %

dilution

(for analytical testing)

impurezas

≤0.0005 meq/g Titr. acid
≤0.20% water

residuo de evap.

≤0.0025%

color

APHA: ≤15

índice de refracción

n20/D 1.379 (lit.)

bp

80 °C (lit.)

mp

−87 °C (lit.)

densidad

0.805 g/mL at 25 °C (lit.)

cadena SMILES

CC(CC)=O

InChI

1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3

Clave InChI

ZWEHNKRNPOVVGH-UHFFFAOYSA-N

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Descripción general

2-Butanone is an organic compound that can be used in the chemical industry as an oxidative reaction activator, extractive agent, solvent, and chemical intermediate. It can be produced by the catalytic dehydrogenation of 2-butanol.

Aplicación

2-Butanonecan be used as a solvent:
  • To synthesize waterborne polyurethanes by reacting polyols and diisocyanates via polymerization reaction.
  • In the Al-catalyzed chemoselective coupling of oxetanes and carbon dioxide to synthesize six-membered cyclic carbonates.

Características y beneficios

  • Low-boiling solvent
  • High power of dissolution
  • High ratio of dissolved matter to viscosity
  • Miscible with a wide range of hydrocarbonswithout affecting the solid′s content or viscosity
  • Favorable volume/mass ratio due to its low density
  • Fast evaporation rate

Pictogramas

FlameExclamation mark
GHS02,GHS07

Palabra de señalización

Danger

Frases de peligro

H225,H319,H336

Clasificaciones de peligro

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Órganos de actuación

Central nervous system

Riesgos supl.

EUH066

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

30.2 °F - closed cup

Punto de inflamabilidad (°C)

-1 °C - closed cup

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Certificados de análisis (COA)

Lot/Batch Number
SHBR4707
SHBS3121
SHBR7842
SHBS0321
SHBS3586

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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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