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244864

Potassium

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

Synonym(s):

Atomic potassium, Potassium hyperkalemia

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Size/SKUAvailabilityPrice
50 g

Estimated to ship onMarch 31, 2027fromMILWAUKEE

$194.00

About This Item

Empirical Formula (Hill Notation):
K
CAS Number:
Molecular Weight:
39.10
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352300
MDL number:
Assay:
98% trace metals basis
Form:
chunks (in mineral oil)

$194.00


Estimated to ship onMarch 31, 2027Details


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vapor pressure

0.09 mmHg ( 260 °C)

Quality Segment

assay

98% trace metals basis

form

chunks (in mineral oil)

reaction suitability

reagent type: reductant

resistivity

6.1 μΩ-cm, 20°C

bp

760 °C (lit.)

mp

64 °C (lit.)

density

0.86 g/mL at 25 °C (lit.)

SMILES string

[K]

InChI

1S/K

InChI key

ZLMJMSJWJFRBEC-UHFFFAOYSA-N

Application

Potassium can be used in the synthesis of potassium containing solid-state chalcogenides with promising thermoelectric properties. 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.
Combines under pressure with silver metal to form 2 new compounds: K2Ag and K3Ag.†


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Pictograms

FlameCorrosion

Signal Word

Danger

Hazard Codes

supp_hazards

Storage Class

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

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable

PPE (personal protective equipment)

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

Hazard Classifications

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



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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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