ISSN:
1573-0662
Keywords:
Hypochlorous acid
;
Henry's law
;
stratospheric aerosol
;
solubility
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
,
Geosciences
Notes:
Abstract Henry's law constants K′H (mol kg−1 atm−1) for the reaction HOCl(g)=HOCl(aq) near room temperature, literature data for the associated enthalpy change, and solubilities of HOCl in aqueous H2SO4 (46 to 60 wt%) at temperatures relevant to the stratosphere (200 K≤T≤230 K) are shown to be thermodynamically consistent. Effective Henry's law constants [H*=mHOCl/pHOCl, in mol kg−1 atm−1] of HOCl in aqueous H2SO4 are given by: ln(H*)=6.4946−mH2SO4(−0.04107+54.56/T)−5862 (1/To−1/T) where T(K) is temperature and To=298.15K. The activity coefficient of HOCl in aqueous H2SO4 has a simple Setchenow-type dependence upon H2SO4 molality.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00712439
Permalink
