Water and hydrides

Because of the reaction rate control afforded by the organic media, the hydrogen reactor can be a simple device. Water and hydride slurry are metered into the reactor, where they are thoroughly mixed to ensure complete reaction. This reaction goes to completion quickly, leaving a powdery waste. Hydrogen production rate is controlled by the injection rate of water and hydride. Heat released by the reaction is removed by the evaporation of some of the added water. No complicated control systems are needed to ensure proper and safe operation of the hydrogen reactor. 

The unusual properties of water, which come from its network of hydrogen bonds, have profound effects on life on earth. Figure 10.12 compares the boiling points of water and hydrides that lack hydrogen bonds. An extrapolation of the trends from the latter compounds would give a boiling point for water without hydrogen bonds near 150 K (-123°C). Life as we know it would not be possible under these circumstances. 

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