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Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892

Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892, Page 34

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[page]33[/page] Weight of crucible and residue 1" ignition -- 11.9582 gr. Weight of crucible and residue 2" ignition -- 11.9471 gr. Weight of crucible and residue 3" ignition -- 11.9417 gr. Weight of crucible and residue 4" ignition -- 11.9408 gr. Weight of crucible and residue 5" ignition -- 11.9408 gr. Weight of residue -- 0.2566 gr. 0.2566 gr. : (X gr 0.2180) :: 169.64 : 143.68 . FeO = 1/2 of 0.2180 or -- 0.1090 grams. 0.1090/0.6656 = 16.39%. [underlined]16.39% of iron.[/underlined] Average percent of III and IV = [underlined]16.46%[/underlined] Theoretical percent = [underlined]16.56%[/underlined]-- Determination of hydroxylamine. To a solution of hydroxylammonium iron sulphate add sodium carbonate to precipitate the iron as
 
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