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Potassium (K)-Cubes

  • 7440-09-07
  • K
  • 99.5%
  • 19mm
  • Class 4.3
  • 231-119-8
  • UN2257
  • PG I



Potassium Kalium is a silver-white soft metal, waxy and can be cut with a knife. It has a low melting and boiling point, a lower density than water, and extremely reactive chemical properties (more reactive than sodium).Is one of the elements of Ⅰ A family, belongs to alkali.There is no elemental form of potassium in nature. Potassium is widely distributed in land and sea in the form of salt. It is also one of the important components in human muscle and nerve tissue.

Phase at STP solid

Appearance: silver white

Melting point 336.7 K (63.5 °C, 146.3 °F)

Boiling point 1032 K (759 °C, 1398 °F)

Density (near r.t.) 0.862 g/cm3

when liquid (at m.p.) 0.828 g/cm3

Critical point 2223 K, 16 MPa

Heat of fusion 2.33 kJ/mol

Heat of vaporization 76.9 kJ/mol

Molar heat capacity 29.6 J/(mol·K)




Potassium is mainly used as a reducing agent and in synthesis.Potassium compounds have many industrial USES.Potassium salt can be used to make fertilizers and soap.Potassium plays an important role in the growth and development of plants and animals.

Potassium metal can be used as a strong reductant in industry.Sodium potassium alloys are used as a medium of heat conduction in some special cooling equipment.

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