Solubility of BaSO4 Powders in Water Containing a Strong Acidic Ion Exchange Resin

In our previous study, it was found that BaSO4 powders, a sparingly soluble salt, was able to dissolve in water suspended with a strong acidic ion exchange resin (abbreviated as H-R). This paper presents a method to elucidate the surface activity of BaSO4 powders which are heat-treated up to 800°C....

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Bibliographic Details
Published inJournal of the Ceramic Association, Japan Vol. 94; no. 1092; pp. 827 - 831
Main Authors SAKURAI, Tadashi, NAGAI, Masayuki, NISHINO, Tadashi
Format Journal Article
LanguageJapanese
Published The Ceramic Society of Japan 1986
Subjects
Activity
BaSO4
Ion exchange resin
Solubility
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Summary:In our previous study, it was found that BaSO4 powders, a sparingly soluble salt, was able to dissolve in water suspended with a strong acidic ion exchange resin (abbreviated as H-R). This paper presents a method to elucidate the surface activity of BaSO4 powders which are heat-treated up to 800°C. Some factors responsible for the dissolution tendency of BaSO4 such as H-R/H2O ratio, soaking temperature and the amount of H-R were examined to determine the optimum condition. The average particle diameter was compared with an electron microscope. A remarkable change in solubility was observed for the BaSO4 powders calcined at 450°-500°C without any significant change in particle size. Calcination at higher temperatures resulted in a slight increase in solubility in spite of the enhanced grain growth.
ISSN:0009-0255
1884-2127
DOI:10.2109/jcersj1950.94.1092_827