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Merck

244864

Potassium

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):
K
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)

Key Documents

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InChI

1S/K

SMILES string

[K]

InChI key

ZLMJMSJWJFRBEC-UHFFFAOYSA-N

vapor pressure

0.09 mmHg ( 260 °C)

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.)

Quality Level

200

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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.†

pictograms

FlameCorrosion
GHS02,GHS05

signalword

Danger

hcodes

H260,H314

supp_hazards

EUH014

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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Certificates of Analysis (COA)

Lot/Batch Number
MKCX4785
MKCV1492
MKCS9792
MKCT0744
MKCP8198

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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)
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)
Synthesis and reactivity of a stable silylene.
Haaf M, et al.
Journal of the American Chemical Society, 120(49), 12714-12719 (1998)
David K Packham et al.
The New England journal of medicine, 372(3), 222-231 (2014-11-22)
Hyperkalemia (serum potassium level, >5.0 mmol per liter) is associated with increased mortality among patients with heart failure, chronic kidney disease, or diabetes. We investigated whether sodium zirconium cyclosilicate (ZS-9), a novel selective cation exchanger, could lower serum potassium levels
Mayumi Tada et al.
The European journal of neuroscience, 39(11), 1720-1728 (2014-01-11)
Calcium imaging of individual neurons is widely used for monitoring their activity in vitro and in vivo. Synthetic fluorescent calcium indicator dyes are commonly used, but the resulting calcium signals sometimes suffer from a low signal-to-noise ratio (SNR). Therefore, it
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