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THERMAL DECOMPOSITI THERMAL DECOMP'OSITION OF SUPEROXIDE 122 sample displays a not on the thermograms o poses in this temperatu hydrates of sodium po THERMAL DECOMPOSITION OF SUPE order to confirm our initial cxperimental techniques and complete record of the thermal decompusition, a samplo sodium superoxide sample containing 1% lby weight of subjected to simultancous DTA, TG,and 1D'rG analysis1a using a temperature prograun rate of 4°/min and a dy at a flow ratc of 5.7 1/h. Aluminium oxide was the refe holder was a platinum crucible14. The thherinograms ar presence of 3 principal peaks at ca. 135°, 15o°and 285° i: sample compar diluent diluent The weight loss curve for recorded with the DTA thermogr temperatures lower than 200°, wit The expanded thermogravimetric more clearly. From these curves sodium superoxide involving the pr meaningful rate until temperature The curves for sodium su «lisplay identical peaks on the DTA ing that copper(1) oxide at this co temperature of sodium superoxide Examination of the DTG both cases at ca. 285°. With the pu riate of 15.5 1mg'min, while with th min. The addlition of copper(I) oxic tlhe rate of decomposition of sodiu T'hese simultancous analy which time the furnace was turne to room temperature. It is scen t dlisplays a strong exotherm at 260 this temperature on the TG coolin peak occurs in the same temjera curve whichh has been assigned to ONygen, its presence indlicates tha Some physical transit ion at this formation of a solid solution in sodium superoxide, sodium oxide tumperature range. The presenee Water present in the original com original sample, it is probable tha grams and at 135° on the Mettler tothe presence of impurities of th below 100° also supports this vi reported to melt at 50-70° and t sodium superoxide (Table I) reve interest sample Appros used. 100 150 250 200 totake tion by bug fre with dr and the been lo and the EXO S0 AT ENDO (o) 50 (e) |Of1 chort 300 100 100 250 200 150 з00 I1300 (300 (b) So 100 (1) Off chort 300 superos 100 250 200 150 250 200 150 Materic Fig. 4. DTA thermogram 13 min. Atmosphere: air ENDO (ca. 98. used wi was sy chlorid 300 (C) S0 100 (g) 200 250 MEL'NIKOV et a oxide have reported tl tion of sodium hydro: formation of sodium p 150 100 250 150 Several Contair 250 2 NaO2 +8 H2 (d) S0 (n) 200 100 200250 150- The octahydrate, how the strong exotherm i a species different fro conditions. This spec It should be noted tha through the superoxic considerably longer ti the formation of the 1 Based on the 1 rationalized for the d relative humidity: The superoxid 4 NaO2+2 H 011 chart RESUL" 150 OC Decom 300 150 variou thersne uminu Fig. t. 1DTA cui ves for sodium superoxide samples containi (1) P'dO; (c) TiO:; (d) CO: (c) V0: (f) VO3: (g) MnOz: Atmosphere: air (static); temperature rise rate to'/min. substa TABLE I Effects of metallic oxide catalyst DTA thermograms were the various catalysts listed in Fe:04, FegOa, Ag:0 and CdO ga superoxide. Therefore, the DTA containing PdO and TiO: (Fig. I cndotherm normally peaking at These were the only two metallic of the decomposition endotherm. Completely different ther containing vanadium and mangan ANALYSIS OF SODIUM SUPERONIDE HEFCORE AND AFTER ISO decon Confira Final Initial % NaO20 NazO analy: supore methe the dc in Tal 83.6 6.5 10.7 71.0 2.7 2 NaO2 +2 H2 or 0.0 % NaOFle " NagCO 9.2 o.0 12.2 Upon heating, регоxide 1.0 u Obtained by method of SEv'n AND KLEINDERG". u Titration with permanganate. e Determined from acicl-baso titration. Na2O2 · H2O: sodius A---.

This is how my brother prints when he's home... Using my toner | /r/MildlyInfuriating


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Uploaded Dec 21, 2019 at 06:14PM EST

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