Application of Pitzer's Theory to Multicomponent Electrolyte HCl+H2SO4+ Glucose Aqueous Solutions Containing Organic Compounds

Abstract

Abstract: The standard second ionization constant of sulfuric acid, K₂, in 15% glucose+85% H₂O at 298.15 K was determined from the elecromotive force values of cell Pt, H₂(101.325 kPa)|HCl(m 1), H₂SO₄(m²), Glucose(x), H₂O(1-x)|AgCl-Ag The medium effect defined by Owen can be indicated as Pitzer's equation including the parameters of binary terms and triple terms for neutral-neutral and neutral-ion interactions. The values of Pitzer's parameters can be determined by fitting the experimental data in this work. In addition, the experimental data of HCl activity coefficient in the organic solvent-water mixture were treated successfully by this method. The results obtained show that Pitzer's theory can be used to illustrate the medium effect.

Key words: Ionization constant, Pitzer's equation, Medium effect, Glucose, Sulfuric acid

CLC Number:

O645

TrendMD:

YANG Jia-Zhen, CHANG Xiao-Hong, XU Wei-Guo, LV Xing-Mei. Application of Pitzer's Theory to Multicomponent Electrolyte HCl+H₂SO₄+ Glucose Aqueous Solutions Containing Organic Compounds[J]. Chem. J. Chinese Universities, 2005, 26(1): 121.

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Application of Pitzer's Theory to Multicomponent Electrolyte HCl+H₂SO₄+ Glucose Aqueous Solutions Containing Organic Compounds

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