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60435

Sigma-Aldrich

Kalium-tert-pentoxid -Lösung

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

Synonym(e):

Kalium-(2-methyl-2-butanolat), Kalium-tert.-pentylat -Lösung

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250 ML
CHF 121.00
1 L
CHF 306.00

CHF 121.00


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250 ML
CHF 121.00
1 L
CHF 306.00

About This Item

Lineare Formel:
CH3CH2C(CH3)2OK
CAS-Nummer:
Molekulargewicht:
126.24
Beilstein:
4149025
MDL-Nummer:
UNSPSC-Code:
12352001
PubChem Substanz-ID:
NACRES:
NA.22

CHF 121.00


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Qualität

technical

Konzentration

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

Dichte

0.90 g/mL at 20 °C

SMILES String

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

InChI

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

InChIKey

ZRLVQFQTCMUIRM-UHFFFAOYSA-N

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Anwendung

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]

Vorsicht

kann auskristallisieren; kann durch Erwärmen auf ~30°C wieder in Lösung gebracht werden

Signalwort

Danger

Gefahreneinstufungen

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

Zielorgane

Central nervous system

Zusätzliche Gefahrenhinweise

Lagerklassenschlüssel

3 - Flammable liquids

WGK

WGK 3

Flammpunkt (°F)

39.2 °F

Flammpunkt (°C)

4 °C

Persönliche Schutzausrüstung

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


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In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.

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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

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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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