Abstract
The aim of the present work was to develop a rapid method for moisture determination in silicic acid used in rubber industry as a reinforcer and ingredient. Water is bound in silicic acid by chemical and adsorption forces. The changes in the nature of the bond under different conditions were studied by infrared spectroscopy. The amount of the physically bound water was determined by direct thermometry (DIE). The method is based on the phenomenon that the heat of reaction between the Karl Fischer reagent and water is great, and that in an adiabatic calorimeter under appropriate conditions the temperature change is proportional to the water content of the samples.
| Original language | German |
|---|---|
| Pages (from-to) | 157-166 |
| Number of pages | 10 |
| Journal | Journal of Thermal Analysis |
| Volume | 29 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1984 |
| Externally published | Yes |