Abstract
In micro-catalytic hydrogenation, the construction of glass apparatus is more simple in manometric method than the volumetric method. On the other hand, it is necessary to accurately determine the internal volume of an apparatus prior to analytical procedure and this was extremely complicated in the apparatus of the existing type. The new manometric apparatus shown in Fig. 1, can be filled with water easily and internal volume can be measured in a short period of time. The manometer in this apparatus is a simple U-tube so that variation in mercury level would cause variation in internal volume but it was found from calculations that in the apparatus of the size as shown in Fig. 1, 2% correction of the observed value is sufficient. It is possible to carry out quantitative determination of active hydrogen by lithium aluminum hydride with this apparatus merely by changing the content of the reaction vessel.
