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Merck

244864

Sigma-Aldrich

Potassium

chunks (in mineral oil), 98% trace metals basis

Sinónimos:

Atomic potassium, Potassium hyperkalemia

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About This Item

Fórmula empírica (notación de Hill):
K
Número de CAS:
Peso molecular:
39.10
Número MDL:
Código UNSPSC:
12352300
ID de la sustancia en PubChem:
NACRES:
NA.22
En este momento no podemos mostrarle ni los precios ni la disponibilidad

presión de vapor

0.09 mmHg ( 260 °C)

Ensayo

98% trace metals basis

Formulario

chunks (in mineral oil)

idoneidad de la reacción

reagent type: reductant

resistividad

6.1 μΩ-cm, 20°C

bp

760 °C (lit.)

mp

64 °C (lit.)

densidad

0.86 g/mL at 25 °C (lit.)

cadena SMILES

[K]

InChI

1S/K

Clave InChI

ZLMJMSJWJFRBEC-UHFFFAOYSA-N

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Aplicación

Combines under pressure with silver metal to form 2 new compounds: K2Ag and K3Ag.†
Potassium can be used in the synthesis of potassium containing solid-state chalcogenides with promising thermoelectric properties.[1][2] It may also be used in the dehalogenation of 1,3-di-tert-butyl-2,2-dichloro-1,3-diaza-2-sila-4-cyclopentene to form 1,3-di-tert-butyl-2,3-dihydro-1H-1,3,2-diazasilol-2-ylidene.[3]

Pictogramas

FlameCorrosion

Palabra de señalización

Danger

Frases de peligro

Clasificaciones de peligro

Eye Dam. 1 - Skin Corr. 1B - Water-react 1

Riesgos supl.

Código de clase de almacenamiento

4.3 - Hazardous materials which set free flammable gases upon contact with water

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

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


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Axtell EA, et al.
Journal of the American Chemical Society, 120(1), 124-136 (1998)
Synthesis and reactivity of a stable silylene.
Haaf M, et al.
Journal of the American Chemical Society, 120(49), 12714-12719 (1998)
Lattice thermal conductivity of K 2 (Bi 1? z Sb z) 8 Se 13 solid solutions.
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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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