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Not to be confused with Liquidation.

Liquefaction, sometimes liquification, refers to any process which either generates a liquid from a solid or a gas, or generates a non-liquid phase which behaves in accordance with fluid dynamics. [1]


Main article: soil liquefaction
The effects of soil liquefaction, seen after 2011 Canterbury earthquake

In geology, soil liquefaction refers to the process by which water-saturated, unconsolidated sediments are transformed into a substance that acts like a liquid, often in an earthquake. By undermining the foundations and base courses of infrastructure, liquefaction can cause serious damage.[2]

Physics and chemistry[edit]

Main articles: liquefaction of gases and melting

In physics and chemistry, the phase transitions from solid and gas to liquid (melting and condensation, respectively) may be referred to as liquefaction. The melting point (sometimes called liquefaction point) is the temperature and pressure at which a solid becomes a liquid.

In commercial and industrial situations, the process of condensing a gas to liquid is sometimes referred to as liquefaction of gases.


Main article: Coal liquefaction

Coal liquefaction is the production of liquid fuels from coal using a variety of industrial processes.


Liquefaction is also used in commercial and industrial settings to refer to mechanical dissolution of a solid by mixing, grinding or blending with a liquid.

Food preparation[edit]

Main article: blender

In kitchen or laboratory settings, solids may be chopped into smaller parts sometimes in combination with a liquid, for example in food preparation or laboratory use. This may be done with a blender, or liquidiser in British English.


In biology, liquefaction often involves organic tissue turning into a more liquid-like state. For example, liquefactive necrosis in pathology,[3] or liquefaction as a parameter in semen analysis.[4]

See also[edit]


  1. ^
  2. ^ USGS. "About Liquefaction". 
  3. ^ Robbins and Cotran: Pathologic Basis of Disease, 8th Ed. 2010. Pg. 15
  4. ^ Gardner, Kavid (2001). Textbook of Assisted Reproductive Technology Laboratory and Clinical Perspectives. Taylor and Francis. p. 63. Retrieved 2013-11-03.