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244864

Sigma-Aldrich

Potassium

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

Empirical Formula (Hill Notation):
K
CAS Number:
Molecular Weight:
39.10
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

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.)

SMILES string

[K]

InChI

1S/K

InChI key

ZLMJMSJWJFRBEC-UHFFFAOYSA-N

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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.†

Packaging

50 g in poly bottle

Pictograms

FlameCorrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

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

Supplementary Hazards

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

Certificate of Analysis

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Certificate of Origin

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