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Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892

Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892, Page 50

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[page]49[/page] The alkaline solution does not contain hydroxylamine but merely a [?sulphonic?] acid which gives sulphites and reducible compounds. It is not an easy matter to measure the amount of sulphite produced because of the oxidation of the very dilute alkaline sulphites by the air and the decomposition of the hydroxylamine sulphonate is not complete. To measure the amount of copper, it should be reduced, add a slight excess of Fehling solution, quite strong and less alkaline than usual, heat to
 
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