Exna

Exna

 [eks´nah]
trademark for a preparation of benzthiazide, an antihypertensive.
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r (Na/Ca) pH ExNa ExCa [SIGMA]Exi mmol/kg) 0.9 6.1 1.10 11.50 12.60 0.7 6.6 0.64 11.10 11.74 0.4 6.3 0.46 11.14 11.86 0.2 6.6 0.20 12.50 12.70 0.1 6.6 0.18 12.20 12.38 Exi--denotes concentration of absorbed cations and [SIGMA]Exi--total adsorbed cations Table 3: Input and equilibrium conditions during measurements.
Sodium--calcium exchange on samples for different concentrations ratios (Na/Ca) for Balkuling soil and mining residue ExCa [SIGMA] r (Na/Ca) pH ExNa (mmol/kg) Exi (A) [K.sup.Na.sub.Ca] Balkuling soil 0.9 6.1 1.10 11.50 12.60 0.28 0.7 6.6 0.64 11.10 11.74 0.21 0.4 6.3 0.46 11.14 11.86 0.23 0.2 6.6 0.20 12.50 12.70 0.18 0.1 6.6 0.18 12.20 12.38 0.31 Mining residue 0.9 7.5 1.16 21.78 22.94 0.16 0.7 7.4 0.78 20.34 21.12 0.14 0.4 7.0 0.64 19.22 19.86 0.19 0.2 7.0 0.40 14.57 14.97 0.30 0.1 7.3 0.40 14.47 14.87 0.57 (A) Exi denotes concentration of adsorbed cations and [SIGMA] Exi total adsorbed cations.
9, a relationship between the exchangeable sodium ratio, ESR (= exNa/(CEC - exNa)), and the SAR, and in their fig.