exchange capacity

exchange capacity

[iks′chānj kə‚pas·əd·ē]
(geology)
The ability of a soil material to participate in ion exchange as measured by the quantity of exchangeable ions in a given unit of the material.
References in periodicals archive ?
S-series includes several membrane grades possessing a wide range of ion exchange capacity and cation selectivity, allowing them to be utilised in a variety of electrolysis and electrodialysis applications for the purpose of separating chemicals.
5 GW, or 50 percent of the Projects total exchange capacity, which is the power equivalent to meet the needs of more than 1 million homes.
5 GW, or 50 percent of the Project's total exchange capacity, which is the power equivalent to meet the needs of more than 1 million homes.
Projects during the fall term include quantitative analyses of water hardness, alkalinity and dissolved oxygen to assess the health of aquatic resources; the concentration of copper, lead and zinc in digested plant samples collected from two areas of concern from point source and non-point source pollution; and concentration and form of macronutrients in soil to include nitrogen, phosphate and potassium as well as salinity, ion exchange capacity, and pH to determine soil productivity.
and effective cation exchange capacity (CEC) were determined using a neutral ammonium acetate preparation and analyzed using inductively coupled argon plasma spectrometry (Hendershot and Duquette, 1986; Carter and Gregorich, 2007).
Zeolites has three essential properties: ion adsorption, water absorption and ion exchange capacity.
Low activity clays which abound in Abakaliki, southeastern Nigeria are inherently low in nutrient status or fertility and productivity due to extremely low cation exchange capacity (CEC) [6].
And added organic matter in the water can improve soil aeration, water-holding capacity and cation exchange capacity (CEC).
The physical properties determined were surface area, cation exchange capacity, density and acidity.
Compost is also helpful in improving soil chemical properties concerning nutrient levels, cation exchange capacity (Ouedraogo et al.
its ion exchange capacity (IEC); normally, these values are above 170[degrees]C [14], Therefore, SPEEK membranes have sufficient thermal stability to operate in fuel cells at intermediate temperatures (120-130[degrees]C).
These statistica differences are related to the leaching of trace elements, as well as to the values of organic matter, cation exchange capacity, hydrogen potential and clay percentage, which are different along the soil profile (Tables 1 and 2), interfering with the sorption and desorption of the trace elements.

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