Acidity of sulfuric acid-sodium sulfate solutions by kinetic measurements

✍ Scribed by Bhart Indu; M. Fazlul Hoq; William R. Ernst

• Publisher: American Institute of Chemical Engineers
• Year: 1991
• Tongue: English
• Weight: 392 KB
• Volume: 37
• Category: Article
• ISSN: 0001-1541
• DOI: 10.1002/aic.690371121

✦ Synopsis

Because of the industrial importance of sulfuric acid, acidic properties of sulfuric acid solutions have been studied at all levels of concentration. Aqueous solutions containing both sulfuric acid and sodium sulfate also have industrial importance, but have been studied to a lesser extent. The purpose of this work was to develop a scale that characterizes the acidity of solutions containing sulfuric acid and sodium sulfate and to determine the effect of a third ingredient, sodium chlorate, on the acidity function. The three component solutions are particularly important in the manufacture of chlorine dioxide, a chemical bleach used in the pulp and paper industry. The rate that chlorine dioxide is generated in a commercial operation depends highly on acidity. For processes with high acid dependence, it is important to have a quantitative measure of acidity of process solutions.