DIY History | Transcribe | Scholarship at Iowa | Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892 | Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892, Page 19

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Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892

Derivatives of Hydroxylamine by Agnes Elizabeth Otto, 1892, Page 19

[underlined][underlined]Experimental Work.[/underlined]--[/underlined]

[underlined]Hydroxylammonium aluminium sulphate[/underline] Al[subscript]2[/subscript](NH[subscript]4[/subscript]O)[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]4[/subscript] -- is prepared by mixing solutions of aluminum sulphate (Al[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]3[/subscript]) and hydroxylamino sulphate (NH[subscript]4[/subscript]O)[subscript]2[/subscript]SO[subscript]4[/subscript] in such proportions that the mixture contains one gram-molecule of each.
Al[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]3[/subscript] + (NH[subscript]4[/subscript]O[subscript]2[/subscript])SO[subscript]4[/subscript] = Al[subscript]2[/subscript](NH[subscript]4[/subscript]O)[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]4[/subscript]. After thorough boiling the solution is transferred to a crystallizing disk and allowed to crystallize very slowly.
     The crystals are large, flat, transparent and many sided. When

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[underlined][underlined]Experimental Work.[/underlined]--[/underlined] [underlined]Hydroxylammonium aluminium sulphate[/underline] Al[subscript]2[/subscript](NH[subscript]4[/subscript]O)[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]4[/subscript] -- is prepared by mixing solutions of aluminum sulphate (Al[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]3[/subscript]) and hydroxylamino sulphate (NH[subscript]4[/subscript]O)[subscript]2[/subscript]SO[subscript]4[/subscript] in such proportions that the mixture contains one gram-molecule of each. Al[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]3[/subscript] + (NH[subscript]4[/subscript]O[subscript]2[/subscript])SO[subscript]4[/subscript] = Al[subscript]2[/subscript](NH[subscript]4[/subscript]O)[subscript]2[/subscript](SO[subscript]4[/subscript])[subscript]4[/subscript]. After thorough boiling the solution is transferred to a crystallizing disk and allowed to crystallize very slowly. The crystals are large, flat, transparent and many sided. When