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5.9 Standard IOdme solutIOn (0 IN) DIssolve 40 g KI m 25 ml dIstIlled water, add 13 g resublImed Iodme and stIr untIl dIssolved Transfer to a I lIter volumetrIc flask and dIlute tothemark Determmethe exactI10rmalIty(5 14) 5 10 Standard IOdme titrant (0 0282N) DIssolve 25 g KI m a lIttle dIstIlled water m a l lIter volumetrIc flask Add the calculated amount of 0 1 N standard Iodme to produce a 0.0282 N solutIon StandardIze daIly (5 15) Store m amber bottle or m dark, protect from sunlIght at all tImes and keep from contact WIth rubber 5.11 SulfUrIC aCId solutIon (1 4) Slowly add 200 ml H2S04 (sp gr 1 84) to 800 ml of dIstIlled water 512 StandardIzation of0 00564N phenylarsme OXIde DIssolve approxImately 2 g (±1 g) KI (5 2) m 100 to 150 ml dIstIlled water, add 10 ml H2S04 solutIon (5 11) followed by 20 ml o005 N potassIUm bnodate SolutIon (5 8) Place m dark for 5 mmutes, dIlute to 300 ml and titrate WIth 0 00564N phenylarsme OXIde solutIOn (5 3) to a pale straw color Add a small scoop ofmdlcator (55) Walt untIl homogeneous blue color develops and contmue the tItration drop by drop untIl the color dIsappears Run m duplIcate DuplIcate determinatIOnshouldagreeWIthin ±O05ml NPAO= 20x0005 mlP AO Adjust PAO SolutIon Ifnecessary and recheck 5 13 StandardIzatIon of 0 0375N phenylarsme OXIde DIssolve approxImately 2 g (± 1 g) KI (52) m 100 to 150 ml dIstIlled water, add 10 ml H2S04 SolutIon (5 11) followed by 20 ml o05 N potassIUm bnodate solutIon (5 7) Place m dark for 5 mmutes, dIlute to 300 ml and titrate wth 0 0375 N phenylarsme OXide solutIOn (5 4) to a pale straw color Add a small scoop of mdlcator (5 5) Walt untIl homogeneous blue color develops and contmue the titratIon drop by drop untIl the color dlsappea,rs Run m duplIcate DuplIcate determmatlonsshouldagreeWIthin ±O05ml NPAO= 20XO1 mlP AO Adjust PAO SolutIon Ifnecessary and recheck 514 StandardIzatIon of 0 1 N IOdme SolutIon DIssolve approxImately 2 g (±1 g) KI (5 2) m 100 to 150 ml dIstIlled water, add 20 mllOdme solutIon (5 9) DIlute to 300 ml and tItrate with 0 0375 N phenylarsme OXIde SolutIon (54) to a pale straw color Add a small scoop ofmdlcator(55) WaltuntIlhomogeneousbluecolordevelopsandcontmuethetitratIon drop by drop untIl the color dIsappears Run m duplIcate DuplIcate determmatlOns shouldagreewlthm ±O05ml _ ml PAO x 0 0375 N12 - 20 3303-2 , I'PDF Image | Methods for Chemical Analysis of Water and Wastes
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CO2 Organic Rankine Cycle Experimenter Platform The supercritical CO2 phase change system is both a heat pump and organic rankine cycle which can be used for those purposes and as a supercritical extractor for advanced subcritical and supercritical extraction technology. Uses include producing nanoparticles, precious metal CO2 extraction, lithium battery recycling, and other applications... More Info
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