Abstract
Abstract Sodium amide was used to convert a microamount of water into ammonia in a carrier gas. The ammonia was then titrated with coulometrically generated hypobromite ions. The reaction between water and sodium amide was completed stoichiometrically, and the reaction rate was considerably promoted by heating sodium amide at 80°C. The sample hydrogen was oxidized with copper(II) oxide at 800°C, and the water thus produced was determined by this method. 0.096–0.665 ml (8.6–59.8 μg) of hydrogen and 0.055–0.465 mg of water in barium chloride crystals were determined within errors of 3.6% and 3.0% respectively. The water adsorbed on the surfaces of the weights was also determined by this method at various humidities.
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