EFFECTIVE HENRY LAW CONSTANTS FOR FREE CHLORINE AND FREE BROMINE

被引：25
|
作者：
BLATCHLEY, ER [1 ]
JOHNSON, RW [1 ]
ALLEMAN, JE [1 ]
MCCOY, WF [1 ]
机构：
[1] GREAT LAKES CHEM CORP,W LAFAYETTE,IN 47906
来源：
WATER RESEARCH | 1992年 / 26卷 / 01期
关键词：
HENRY CONSTANT; EFFECTIVE HENRY CONSTANT; HYPOCHLOROUS ACID; HYPOBROMOUS ACID; VOLATILITY; FLASHOFF;
D O I：
10.1016/0043-1354(92)90117-M
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Volatilization represents a non-reactive loss mechanism for aqueous halogen biocides. Equilibrium volatilities, as measured by effective Henry's law constants, or effective dimensionless partition coefficients (m), for free chlorine and free bromine were estimated to be 0.0604 atm (m = 4.55 x 10(-5)) and 0.0293 atm (m = 2.21 x 10(-5)), respectively, at 20-degrees-C using a stripping column. A true Henry's constant of 0.0600 atm (m = 4.52 x 10(-5)) was estimated for HOCl by application of equilibrium data to the system. The effective Henry's constant for free chlorine (H(Cl)) is comparable to a previously published value determined under similar conditions. Prior to this investigation, no published values for a free bromine effective Henry's constant (H(BR)) were available.
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页码：99 / 106
页数：8
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