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Ageing of Water or Dissolution of Glass: An Electrical Conductivity Study

Marija Bešter-Rogač


Water and water based  solutions are often stored in glass vessels. There are many studies in the literature dealing with solubility of glass-strictly speaking leaching of its components-in water. In present work the leaching process was investigated by measuring the  electrical resistance/conductivity of water in a gas tight closed cell under  nitrogen atmosphere during three weeks in the temperature range from 5 to 40 °C. From obtained results it was concluded, that the observed increase in electrical conductivity of water –actually extremely diluted solution of ions released form glass-in the used time period, can be ascribed to the leaching of ions from the  glass solely. 


water; glass, dissolution; leaching, silicate; electrical conductivity

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Copyright (c) 2014 Marija Bešter-Rogač

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