Samples Natural KLS-10- МА
Cation exchange capacity 102 139.5
Exchangeable cations
Na+ 23.34 133.14
K+ 19.14 36.08
Ca+ 61.22 24.68
Mg+ 1.05 2.41
Total 104.75 196.31
Table 2: Cation exchange capacity (meq/100g, NH4+) and exchangeable cations (meq/100g) of clinoptilolite samples from Golobradovo, South-East Rhodops Mountain, Bulgaria (natural and modified).
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