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244864

Potassium

Name: Potassium
Brand: ALDRICH

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

Synonym(s):

Atomic potassium, Potassium hyperkalemia

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About This Item

Empirical Formula (Hill Notation):

CAS Number:

7440-09-7

Molecular Weight:

39.10

NACRES:

NA.22

PubChem Substance ID:

24854713

UNSPSC Code:

12352300

MDL number:

MFCD00133776

Assay:

98% trace metals basis

Form:

chunks (in mineral oil)

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Properties

vapor pressure

0.09 mmHg ( 260 °C)

Quality Level

200

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

Description

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

GHS02,GHS05

signalword

Danger

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

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

Hazard Classifications

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

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Incorporation of A2Q into HgQ and dimensional reduction to A2Hg3Q4 and A2Hg6Q7 (A= K, Rb, Cs; Q= S, Se). Access of Li ions in A2Hg6Q7 through topotactic ion-exchange.

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.

Kyratsi T, et al.

Journal of Applied Physics, 95(8), 4140-4146 (2004)

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