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Effect of pH on the electrical conductance of saturated aqueous solutions of KH2PO4 and its solubility

โœ Scribed by Doc. dr. hab. K. Sangwal; E. Olczyk

Publisher
John Wiley and Sons
Year
1990
Tongue
English
Weight
324 KB
Volume
25
Category
Article
ISSN
0232-1300

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โœฆ Synopsis

The specific conductivity of saturated aqueous solutions of KH,PO, and its solubility are investigated in the pH range between 2.5 and 6.3. It is found that the values of specific conductivity and solubility show minima at pH of about 3.5 and 4, respectively. These observations are discussed in terms of the presence of a variety of species of different concentrations in saturated solutions of different pH. The conductivity data reveal that the solutions are highly associated. The presence of species other than H,PO, and K + explains the experimentally observed deterioration in the quality of KDP crystals from solutions of pH deviating from the natural value.

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โœ Kenneth T. Williams; Thomas G. Thompson ๐Ÿ“‚ Article ๐Ÿ“… 1936 ๐Ÿ› John Wiley and Sons ๐ŸŒ English โš– 228 KB

During investigation$ on the acidity of bog waters, it was observed that the pH of such waters ranged from 3.83 t o 4.95 and that the dominant cause of the acid condition of the water was not due t o carbonic acid but to the colloidal material in the water1). The experiments reported below show that