PK1699 Potassium (K) Metal

Catalog No.	PK1699
Density	0.89 g/cm3
Appearance	Soft, silvery metal
Melting Point	63.25 °C
Boiling point	760 °C
Molecular Weight	39.1

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Description

Specification

Technical Data Sheet

Description of Potassium (K) Metal

Synonyms: potassium ingots, K, potassium blocks, potassium cubes, potassium sticks.
CAS No: 7440-09-7.
Chemical Properties: 98% to 99.95%.
Physical Properties: Small ingots under argon in glass or small blocks.

Specifications of Potassium (K) Metal

Atomic Number	19
Molecular Weight (g/mol.)	39.102
Apparent Density (g/cm3)	86
RTECS Number	TS6460000
Specific Heat @25°C (cal/g-°C)	177
Melting Point (°C)	63.7
Boiling Point (°C)	760
Thermal Conductivity @200°C (cal/s-cm-°C)	107
Mohs Hardness @20°C	5
Crystallography	cubic structure, body-centered

Applications of Potassium (K) Metal

a) Potassium forms alloys with many metals, but only the alloy obtained with the sodium has some interest in the technology of nuclear reactors. The more important compounds, from the point of view of applications, are chloride, sulfate, nitrate, carbonate, and hydroxide.

b) The potassium chloride, as well as the hydroxide, is the main source to obtain other salts; the latter one is also used as the industrial reagent for producing liquid soaps, as the electrolyte in certain batteries and as the absorbent of carbon dioxide and hydrogen sulfide.

c) Another less common salt is used in Medicine: the bromide as the sedative, the potassium permanganate as the bactericide, etc.