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Merck
CN

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
MDL number:
MFCD00133776
UNSPSC Code:
12352300
PubChem Substance ID:
24854713
NACRES:
NA.22

Key Documents

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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

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Application

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. 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.

Pictograms

FlameCorrosion
GHS02,GHS05

Signal Word

Danger

Hazard Statements

H260,H314

Hazard Classifications

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

Supplementary Hazards

EUH014

Storage Class Code

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

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

监管及禁止进口产品
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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)
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)
Glucose-insulin-potassium revived: current status in acute coronary syndromes and the energy-depleted heart.
Alexandra N Grossman et al.
Circulation, 127(9), 1040-1048 (2013-03-06)
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
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