Effect of simple anions and metal ions on the hydrolysis of disulfate ion

Journal Article · Mon Jul 01 00:00:00 EDT 1991 · Industrial and Engineering Chemistry Research; (United States)

DOI:https://doi.org/10.1021/ie00055a005· OSTI ID:5873582

Shen, D X; Littlejohn, D; Chang, S G ^[1]

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1. Lawrence Berkeley Lab., CA (United States). Applied Science Div.

This paper reports on the influence of anions and cations commonly found in flue gas scrubber systems on the hydrolysis rate of disulfate ion (S{sub 2}O{sub 7}{sup 2{minus}}) that has been studied. The cations studied include Na{sup +}, K{sup +} Ca{sup 2+}, Mg{sup 2+}, and Mn{sup 2+}. The anions studied include SO{sub 3}{sup 2{minus}}, SO{sub 4}{sup 2{minus}}, S{sub 2}O{sub 3}{sup 2{minus}}, S{sub 2}O{sub 6}{sup 2{minus}}, HSO{sub 3}{sup {minus}}, Cl{sup {minus}}, H{sub 2}PO{sub 4}{sup {minus}}, and HPO{sub 4}{sup 2{minus}}. Of the ions studied, Ca{sup 2+}, Mg{sup 2+}, SO{sub 3}{sup 2{minus}}, and S{sub 2}O{sub 6}{sup 2{minus}} were found to approximately double the rate of S{sub 2}O{sub 7}{sup 2{minus}} hydrolysis. Adipic acid was found to have no effect on S{sub 2}O{sub 7}{sup 2{minus}} hydrolysis. Activation energies for the S{sub 2}O{sub 7}{sup 2{minus}} hydrolysis rate accelerated by Ca{sup 2+}, Mg{sup 2+}, and SO{sub 3}{sup 2{minus}}, as well as for the unenhanced rate, were found to be in the range of 9-12 kcal/mol.

• OSTI ID: 5873582
• Journal Information: Industrial and Engineering Chemistry Research; (United States), Vol. 30:7; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
MOLECULAR IONS
HYDROLYSIS
SULFUR OXIDES
ACTIVATION ENERGY
ADIPIC ACID
ANIONS
CALCIUM IONS
CATIONS
FLUE GAS
MAGNESIUM IONS
MANGANESE IONS
MATERIAL SUBSTITUTION
PHOSPHATES
POTASSIUM IONS
SODIUM IONS
CARBOXYLIC ACIDS
CHALCOGENIDES
CHARGED PARTICLES
CHEMICAL REACTIONS
DECOMPOSITION
DICARBOXYLIC ACIDS
ENERGY
GASEOUS WASTES
IONS
LYSIS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
SOLVOLYSIS
SULFUR COMPOUNDS
WASTES
400201* - Chemical & Physicochemical Properties