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449148

Sigma-Aldrich

Potassium fluoride

anhydrous, powder, ≥99.9% trace metals basis

Sinônimo(s):

Potassium monofluoride, Potassium monofluoride (KF)

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About This Item

Fórmula linear:
KF
Número CAS:
Peso molecular:
58.10
Beilstein:
3902818
Número CE:
Número MDL:
Código UNSPSC:
12352302
ID de substância PubChem:
NACRES:
NA.23
Preço e disponibilidade não estão disponíveis no momento.

grau

anhydrous

Nível de qualidade

Ensaio

≥99.9% trace metals basis

Formulário

powder

Impurezas

≤1000.0 ppm Trace Metal Analysis

pf

858 °C (lit.)

cadeia de caracteres SMILES

[F-].[K+]

InChI

1S/FH.K/h1H;/q;+1/p-1

chave InChI

NROKBHXJSPEDAR-UHFFFAOYSA-M

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Descrição geral

Potassium fluoride is a white crystalline solid that is highly soluble in water. It is a strong base widely used in the field of catalysis, polymer synthesis, and semiconductor devices. [1] [2] KF has a relatively high melting point. It dissolves well in hydrofluoric acid. However, KF is insoluble in alcohol.

Aplicação

A versatile fluoride ion source used in a study of ion-specific swelling and de-swelling of ampholytic polymer gels, in the room temperature oxidation of noble metals in HF, and in the measurement of electronic polarizabilities of ions in polymers of alkali halides.
Potassium fluoride can be used:
  • To fabricate CIGS thin films solar cells. Efficiency increased by up to 21.7% after KF postdeposition treatment. This was due to the formation of a K-containing layer on the CIGS surface, which resulted in increased surface reactivity due to the formation of a bilayer structure in which a K—In—Se species covers the CIGSe compound.[3]
  • To fabricate 2D vanadium carbide MXene for supercapacitor electrodes.[4]
  • To synthesize sulfonyl fluoride through electrochemical oxidative coupling.[5]
  • As an electrolyte additive for Li-ion batteries.[6]
  • As a catalyst for ring-opening fluorination of cyclic thioethers.[1]
  • To synthesize solid base catalysts, KF/Ca−Mg−Al hydrotalcite for the production of Biodiesel via transesterification reactions.[2]

Pictogramas

Skull and crossbonesCorrosion

Palavra indicadora

Danger

Frases de perigo

Classificações de perigo

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Eye Dam. 1

Código de classe de armazenamento

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

Classe de risco de água (WGK)

WGK 1

Ponto de fulgor (°F)

Not applicable

Ponto de fulgor (°C)

Not applicable


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Visite a Biblioteca de Documentos

Macromolecules, 29, 8391-8391 (1996)
An aryne triggered ring-opening fluorination of cyclic thioethers with potassium fluoride
Rong Fan, et al.
Chemical Communications (Cambridge, England), 54, 7081-7084 (2018)
Indian Journal of Physics, 70B, 311-311 (1996)
Biodiesel Synthesis Catalyzed by the KF/Ca?Mg?Al Hydrotalcite Base Catalyst
Lijing Gao, et al
Energy and Fuels, 24, 646-651 (2010)
Eur. J. Solid State Inorg. Chem., 33, 809-809 (1996)

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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