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首页> 外文期刊>Environmental toxicology and chemistry >EQUILIBRIUM STUDIES IN NATURAL WATERS: SPECIATION OF PHENOLIC COMPOUNDS IN SYNTHETIC SEAWATER AT DIFFERENT SALINITIES
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EQUILIBRIUM STUDIES IN NATURAL WATERS: SPECIATION OF PHENOLIC COMPOUNDS IN SYNTHETIC SEAWATER AT DIFFERENT SALINITIES

机译：天然水中的平衡研究：不同盐度下合成海水中酚类化合物的形态

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摘要

Interactions between some phenolic compounds and macro-constituents of synthetic seawater (Na~+, K~+, Ca~(2+), Mg~(2+), Cl~-, and SO_4~(2-)), at 20, 35, and 45%o salinity, have been investigated potentiometrically by using the [H]-glass electrode. The formation constants of phenol, o- and p-cresol, o- and p-nitrophenol complexes with sodium, potassium, calcium, and magnesium ions have been determined in the ionic strength range 0 ≤ I ≤ 1 mol/L. A comparison between the apparent protonation constants of phenols determined in synthetic seawater, and those simulated by a suitable complex formation model, is discussed. The possibility of calculating, by simulation, the apparent protonation constants of some chlorophenolic compounds in synthetic seawater is also reported.
机译：某些酚类化合物与合成海水的宏观成分（Na〜+，K〜+，Ca〜（2 +），Mg〜（2 +），Cl〜-和SO_4〜（2-））之间的相互作用通过使用[H]-玻璃电极电位法研究了盐度为35％和45％。在离子强度范围0≤I≤1 mol / L下测定了苯酚，邻甲酚和对甲酚，邻硝基和对硝基苯酚与钠，钾，钙和镁离子的形成常数。讨论了在合成海水中测定的苯酚的表观质子化常数与通过合适的复杂形成模型模拟的那些之间的比较。还报道了通过模拟计算合成海水中某些氯酚类化合物的表观质子化常数的可能性。

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