The combustion- gravimetric method for the determination of hydrogen has been modified and adapted to the measurement of hydrogen in molybdenum metal. The sample is burned in oxygen at 11000 C. Fused magnesium oxide sand is used to absorb the molybdic oxide produced and prevent its sublimation in the combustion tube. The water produced by oxidation of the hydrogen present is absorbed in anhydrous magnesium perchlorate and weighed. An average ...
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