Passa al contenuto
Merck
Tutte le immagini(2)

Documenti fondamentali

Visualizza tutta la documentazione

292788

Sigma-Aldrich

Potassium methoxide

95%

Sinonimo/i:

Potassium methylate

Autenticatiper visualizzare i prezzi riservati alla tua organizzazione & contrattuali

Scegli un formato

5 G
CHF 63.10
250 G
CHF 132.00

CHF 63.10

Check Cart for Availability
Richiedi un ordine bulk
Tutte le immagini(2)

Scegli un formato

Cambia visualizzazione
5 G
CHF 63.10
250 G
CHF 132.00

About This Item

Formula condensata:
CH3OK
Numero CAS:
865-33-8
Peso molecolare:
70.13
Beilstein:
3551544
Numero CE:
212-736-1
Numero MDL:
MFCD00012416
Codice UNSPSC:
12352107
ID PubChem:
24857610
NACRES:
NA.22

CHF 63.10

Check Cart for Availability
Richiedi un ordine bulk

Saggio

95%

Stato

solid

Stringa SMILE

[K+].C[O-]

InChI

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

Cerchi prodotti simili? Visita Guida al confronto tra prodotti

Categorie correlate

Descrizione generale

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

Applicazioni

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]

Pittogrammi

FlameCorrosion
GHS02,GHS05

Avvertenze

Danger

Indicazioni di pericolo

H251,H314

Classi di pericolo

Self-heat. 1 - Skin Corr. 1B

Rischi supp

EUH014

Codice della classe di stoccaggio

4.2 - Pyrophoric and self-heating hazardous materials

Classe di pericolosità dell'acqua (WGK)

WGK 2

Punto d’infiammabilità (°F)

51.8 °F - closed cup

Punto d’infiammabilità (°C)

11 °C - closed cup

Dispositivi di protezione individuale

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

Scegli una delle versioni più recenti:

Certificati d'analisi (COA)

Lot/Batch Number
SDBB1134
MKBM0740V
STBC3538V
S60247V
04729JJ

Non trovi la versione di tuo interesse?

Se hai bisogno di una versione specifica, puoi cercare il certificato tramite il numero di lotto.

Cerca un COA

Possiedi già questo prodotto?

I documenti relativi ai prodotti acquistati recentemente sono disponibili nell’Archivio dei documenti.

Visita l’Archivio dei documenti

Oligoethylene Glycols as Highly Efficient Mutifunctional Promoters for Nucleophilic-Substitution Reactions
Vinod J H et al.
Chemistry?A European Journal , 18, 3918-3924 (2012)
General and practical potassium methoxide/disilane-mediated dehalogenative deuteration of (hetero) arylhalides
Xin W et al.
Journal of the American Chemical Society, 140, 10970-10974 (2018)
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)
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)
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)
Visualizza tutti i documenti correlati

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

      Helpful?

Reviews

No rating value

Active Filters

Il team dei nostri ricercatori vanta grande esperienza in tutte le aree della ricerca quali Life Science, scienza dei materiali, sintesi chimica, cromatografia, discipline analitiche, ecc..

Contatta l'Assistenza Tecnica.