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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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Ihnen/SKUVerfügbarkeitPreis
250 mL
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€ 134,00
1 L
Warenkorb auf Verfügbarkeit prüfen
€ 263,00

Über diesen Artikel

Lineare Formel:
CH3CH2C(CH3)2OK
CAS-Nummer:
Molekulargewicht:
126.24
NACRES:
NA.22
UNSPSC Code:
12352001
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
4149025
Concentration:
~25% in toluene (T, ~1.7 M)

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grade

technical

Quality Segment

concentration

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

density

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

InChI key

ZRLVQFQTCMUIRM-UHFFFAOYSA-N

Application

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.

Disclaimer

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

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Dieser Artikel
70275760402277304
description

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

description

2 M in THF

description

~25% in methanol (T)

description

0.5 M in toluene

grade

technical

grade

-

grade

-

grade

-

concentration

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

concentration

2 M in THF

concentration

~25% in methanol (T)

concentration

0.5 M in toluene

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

200

density

0.90 g/mL at 20 °C

density

0.920 g/mL at 25 °C

density

0.95 g/mL at 20 °C

density

0.877 g/mL at 25 °C


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signalword

Danger

Hazard Classifications

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

target_organs

Central nervous system

supp_hazards

Lagerklasse

3 - Flammable liquids

wgk

WGK 3

flash_point_f

39.2 °F

flash_point_c

4 °C

ppe

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


Zulassungslistungen

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108-88-3

CAS No.


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Analysenzertifikate (COA)

Lot/Batch Number

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Questions

1–2 of 2 Questions  
  1. 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/418/501/product-dating-information-06-25-mk.pdf

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  2. 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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