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. Hydroxylamine : its quantitative determination and some double salts . xylaminesalt, add about 50 c c. water and allow carbon dioxide to pass intoit for several minutes before adding the titanium solution. Letstand for some time to allow it to act, otherwise the action will bebetween the hydroxylamine and the permanganate, then titrate theexcess of titanium solution with permanganate. A decided end pointis noted. The titanium solution was prepared by fusing titanium oxideTi Ogwith potassium acid sulphate, then dissolving in water acidifiedwith sulphuric acid. The titanium solution is reduced
. Hydroxylamine : its quantitative determination and some double salts . xylaminesalt, add about 50 c c. water and allow carbon dioxide to pass intoit for several minutes before adding the titanium solution. Letstand for some time to allow it to act, otherwise the action will bebetween the hydroxylamine and the permanganate, then titrate theexcess of titanium solution with permanganate. A decided end pointis noted. The titanium solution was prepared by fusing titanium oxideTi Ogwith potassium acid sulphate, then dissolving in water acidifiedwith sulphuric acid. The titanium solution is reduced from Ti(80^)2to Ti (SO.)^ by means of nascent hydrogen evolved from zinc and sul-phuric acid. Permanganate standardized by ferrous ammonium sulphate1 being equivalent to .000234 g 0 was used to get strength of th^titanium solution. 1 KMn04= = c c. titanium solution Since 1 of permanganate contains .000234 grams of Ox-ygen, then oxygen required to oxidize 1 of titanium solution wilbe .000234 divided by or .00018 89 grams.+ Ber, 37, 4732-39. Since - ^ 112(304)3 +aNH20H + 2H2S04=Ti(304)2 + (NH4)2S04 + HgO, one grammolecule of hydroxylaraine gives for oxidation sixteen grams of oxy-gen. : 16 =X:(.0001889 x number of of titanium solutionused) grams of Ti solution used found . .01922 .00758 .00402 .1693 .00342 taken 25101521010 K Mn O4 used . With titanium solution, of which 1 requires for oxida-tion of permanganate equivalent to .000183 grams of oxygen,the following results were obtained;- No. ofExpt. g. NHg taken found C, Ti Solutiontaken used 1 .0171 .0175 25 CO. c,c. 2 .0074 .0072 15 c c. 3 .0390 .0468 80 c: c. 4 .0254 .0131 50 5 .0275 .0264 35 6 .0351 .0324 50. CO. 7 .0340 .0324 8 .0149 .0145 20 CO. In number three the
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