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Sigma-Aldrich

Potassium methoxide

95%

Synonyme(s) :

Potassium methylate

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Disponible pour expédition le15 avril 2025Détails


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5 G
68,40 $
250 G
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About This Item

Formule linéaire :
CH3OK
Numéro CAS:
Poids moléculaire :
70.13
Beilstein:
3551544
Numéro CE :
Numéro MDL:
Code UNSPSC :
12352107
ID de substance PubChem :
Nomenclature NACRES :
NA.22

68,40 $


Disponible pour expédition le15 avril 2025Détails


Devis pour commande en gros

Niveau de qualité

Essai

95%

Forme

solid

Chaîne SMILES 

[K+].C[O-]

InChI

1S/CH3O.K/c1-2;/h1H3;/q-1;+1

Clé InChI

BDAWXSQJJCIFIK-UHFFFAOYSA-N

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Description générale

Potassium methoxide is a basic nucleophile used in the dehalogenation of arylhalides. [1] [2]

Application

Potassium methoxide can be used:
  • As a methoxylating agent for methoxylation of bromo- and mesyloxyalkanes in the presence of an ionic liquid [bmim][BF4].[3]
  • As a catalyst for the synthesis of dimethyl carbonate[4] and methyl formate.[5]
  • As a catalyst for the transesterification of sunflower oil for the production of biodiesel.[6]

Pictogrammes

FlameCorrosion

Mention d'avertissement

Danger

Mentions de danger

Classification des risques

Self-heat. 1 - Skin Corr. 1B

Risques supp

Code de la classe de stockage

4.2 - Pyrophoric and self-heating hazardous materials

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

51.8 °F - closed cup

Point d'éclair (°C)

11 °C - closed cup

Équipement de protection individuelle

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Certificats d'analyse (COA)

Lot/Batch Number

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Consulter la Bibliothèque de documents

The effect of Mo(CO)6 as a co-catalyst in the carbonylation of methanol to methyl formate catalyzed by potassium methoxide under CO, syngas and H2 atmospheres. HP-IR observation of the methoxycarbonyl intermediate of Mo(CO)6.
Jali S, et al.
J. Mol. Catal. A: Chem., 348(1-2), 63-69 (2011)
Integrated biodiesel production: a comparison of different homogeneous catalysts systems.
Vicente G, et al.
Bioresource Technology, 92(3), 297-305 (2004)
Significantly enhanced reactivities of the nucleophilic substitution reactions in ionic liquid.
Kim DW, et al.
The Journal of Organic Chemistry, 68(11), 4281-4285 (2003)
Oligoethylene Glycols as Highly Efficient Mutifunctional Promoters for Nucleophilic-Substitution Reactions
Vinod J H et al.
Chemistry?A European Journal , 18, 3918-3924 (2012)
Synthesis of dimethyl carbonate from methanol and carbon dioxide using potassium methoxide as catalyst under mild conditions.
Cai Q, et al.
Catalysis Letters, 103(3-4), 225-228 (2005)

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/449/386/product-dating-information-mk.pdf

      Helpful?

  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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