non-exchangeable cations

[nɑn-ɪkˈsteɪndʒəbəl ˈkætaɪənz]
nounpl: non-exchangeable cations
cátions não-trocáveis
1. Positively charged ions in soil that are firmly bound to soil particles and cannot be readily replaced by other cations in ion exchange reactions
Non-exchangeable cations are fixed within the crystal structure of clay minerals and contribute to soil's total cation content.
Os cátions não-trocáveis estão fixados na estrutura cristalina dos minerais de argila e contribuem para o conteúdo total de cátions do solo.
2. Cations that are structurally incorporated into soil minerals and are not available for exchange with other cations in the soil solution
Potassium held between layers of mica is an example of non-exchangeable cations.
O potássio retido entre as camadas de mica é um exemplo de cátions não-trocáveis.
This term is primarily used in technical and scientific contexts, particularly in soil science, agronomy, and environmental geology. It is essential terminology in agricultural studies and soil management practices in both Brazil and Portugal, where soil fertility and nutrient availability are critical concerns for crop production.
Synonyms / Sinônimos
fixed cationsstructural cationslattice cationsbound cations
Antonyms / Antônimos
exchangeable cationsavailable cationsmobile cations

Regional Variations

General Brazilian Portuguese
cátions não-trocáveis
Standard term used in soil science and agricultural chemistry
Portugal
catióes não-permutáveis
Alternative term sometimes used in Portuguese soil science literature
Technical/Scientific
cátions estruturais fixos
More specific technical terminology emphasizing structural fixation

Related Words

cation exchange capacitysoil chemistryclay mineralsion exchangeexchangeable potassiumsoil fertilitynutrient availability
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