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60435

Sigma-Aldrich

Potassium tert-pentoxide solution

technical, ~25% in toluene (T, ~1.7 M)

Sinónimos:

Potassium (2-methyl-2-butoxide), Potassium tert-pentylate

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About This Item

Fórmula lineal:
CH3CH2C(CH3)2OK
Número de CAS:
41233-93-6
Peso molecular:
126.24
Beilstein:
4149025
Número MDL:
MFCD00064808
Código UNSPSC:
12352001
ID de la sustancia en PubChem:
57651765
NACRES:
NA.22
En este momento no podemos mostrarle ni los precios ni la disponibilidad

grado

technical

concentración

~25% in toluene (T, ~1.7 M)

densidad

0.90 g/mL at 20 °C

cadena SMILES

[K+].CCC(C)(C)[O-]

InChI

1S/C5H11O.K/c1-4-5(2,3)6;/h4H2,1-3H3;/q-1;+1

Clave InChI

ZRLVQFQTCMUIRM-UHFFFAOYSA-N

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Aplicación

Potassium tert-pentoxide solution has been used as a base to synthesize [RuClPh(CO)(H2IMes)(PCy3)] from second-generation Grubbs metathesis catalyst, [RuCl2(=CHPh)(H2IMes)(PCy3)], (where H2IMes is 1,3-dimethyl-4,5-dihydroimidazol-2-ylidene and PCy3 is tricyclohexylphosphine) and benzyl alcohol. This complex is a solid, air-stable and highly active isomerization catalyst.[1]

Precaución

may crystallize; can be redissolved on heating to approx. 30°C

Palabra de señalización

Danger

Clasificaciones de peligro

Aquatic Chronic 3 - Asp. Tox. 1 - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - Skin Corr. 1B - STOT RE 2 - STOT SE 3

Órganos de actuación

Central nervous system

Riesgos supl.

EUH014

Código de clase de almacenamiento

3 - Flammable liquids

Clase de riesgo para el agua (WGK)

WGK 3

Punto de inflamabilidad (°F)

39.2 °F

Punto de inflamabilidad (°C)

4 °C

Equipo de protección personal

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificados de análisis (COA)

Lot/Batch Number
MKCT4263
MKCT0518
MKCQ9385
MKCQ3452
MKCQ1347

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Degradation of the Second?Generation Grubbs Metathesis Catalyst with Primary Alcohols and Oxygen? Isomerization and Hydrogenation Activities of Monocarbonyl Complexes.
Dinger MB
European Journal of Inorganic Chemistry, 2003(15), 2827-2833 (2003)

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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