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Concept information

属性 > 物化性质 > 离子交换量
measure (en) > 离子交换量

PREFERRED TERM

void:inDataset: http://aims.fao.org/aos/agrovoc/void.ttl#Agrovoc

Created: 2002-12-12T00:00:00Z

skos:notation: 24864

离子交换量  

DEFINITION

  • measure of the ability of an insoluble material to undergo displacement of ions previously attached and loosely incorporated into its structure by oppositely charged ions present in the surrounding solution. Zeolite minerals used in water softening, for example, have a large capacity to exchange sodium ions (Na+) for calcium ions (Ca2+) of hard water. High cation-exchange capacities are characteristic of clay minerals and numerous other natural and synthetic substances possessing ion-exchanging properties. (en)
  • Number of inorganic groups per specified amount of ion-exchanger. (en)

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URI

http://aims.fao.org/aos/agrovoc/c_24864

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