. Hydroxylamine : its quantitative determination and some double salts . ne solu-tion and titrate back with sodium thiosulphate. If the amounts ofhydroxylamine and used iodine are figured from atomic weights, onemolecule of hydroxylamine salt requires two atoms of iodine. It fol-lows that one molecule of hydroxylamine is oxidized by two atoms ofiodine if the hydriodic acid formed is neutralized at once,2NH^0H+SIg=Np0+Hg0+4HI and proves accurately this formula by eudio-metric analysis of gases formed by the results obtained by this method were solution of whi
. Hydroxylamine : its quantitative determination and some double salts . ne solu-tion and titrate back with sodium thiosulphate. If the amounts ofhydroxylamine and used iodine are figured from atomic weights, onemolecule of hydroxylamine salt requires two atoms of iodine. It fol-lows that one molecule of hydroxylamine is oxidized by two atoms ofiodine if the hydriodic acid formed is neutralized at once,2NH^0H+SIg=Np0+Hg0+4HI and proves accurately this formula by eudio-metric analysis of gases formed by the results obtained by this method were solution of which 1 =Q= .007676 grams of iodine =0=.0009972 grams of hydroxylamine per , was ^ + 2Ig =:N^0 +Ho0+4HI Wt. taken ^ found used U,C,oriodine solu-tion taken ioame solu-tion used^ . . . .£>. .070Sg ,,3 . 3c! ,00 ^ Ber. 10, 1940-48. In niombers one, two, and three sodium phosphate, sind in four andfive raagnesjuin oxide was used as a neutralizing agent. A teat wasrun to see if titration with thiosulphate was accurate in presenceof alkali. , of I used NapSg05 used 1 NapSgOg =:/^= I. I In presence of Na^PO^^ In pre3ance KgO is added When - : E2S0zi^ to neutralize the excessof Na^PO^ 3 of Mg 0 The determination was as follows:-To the weighed por-tion of an excess of the neutralizing agent was added andthe solution made up to about one hundred cuhic centimeters andimmediately titrated with the iodine solution of known strength^ it was found from the tests that the object is to get as smallan excess of the neutralizing agent as possible and also a smallexcess of iodine to be titrated back with thiosulph
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