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54 5.5 5.6 5 7 5.8 59 Standard lodme tItrant (0 0282N) DIssolve 25 g KI m a httle dIstilled water m a l hter volumetncflask Addthecalculatedamountof0INstandardlOdme(53)toproducea 0.0282N solutlOn StandardIze dally (5 12) Store m amber bottle or m dark, protect from sunhght at all tImes and keep from contact wIth rubber PotasslUm bllodate (0 IN) Dlssove 3 249g potasslUm bllodate, prevlOusly dned 2 hours at 103°C, m dIstilled water and dIlute to 1 0 hter Store In a glass stoppered bottle PotasslUmbllodate(0oo5N) DIlute50mlof0 INpotasslUmbllodate(5 5)to 1hterma volumetncflask Storemglassstopperedbottle CommercIally avaIlable starch mdlcators such as thyodene or eqUlvalent may be used Sulfunc ACId SolutlOn (1 4) Slowly add 200 ml H2S04 (sp gr 1 84) to 800 ml ofdIstIlled water StandardlzatlOnof0oo564NphenylarsmeoXIde DIssolveapproxImately2g(±19)KIm 100 to 150 ml dIstilled water, add 10 ml H2S04 solutlOn (5 8) followed by 20 m1 0 oo5N potasslUmbllodatesolutlOn(56) Placemdarkfor5mmutes,dIluteto300mlandtItrate WIth 0 oo564N phenylarsme oXIde solutlOn (5 1) to a pale straw color Add a small scoop ofmdlcator (57) Walt untIl homogenous blue color develops and contmue the tltratlOn drop by drop untIl the color dIsappears Run m duphcate Duphcate determmatlOns shouldagreeWIthm ±O05ml N PAO _ 20XOOO5 mlP AO Adjust PAO solutlOn If necessary and recheck 5 10 StandardIZation of 0 0375N phenylarsme oXlde DIssolve approxImately 2 g (± 19) KI m 100 to 150 ml dIstIlled water, add 10 ml H2S04 solutlOn (58) followed by 20 ml 0 IN potasslUm bllodate solutlOn (5 5) Place m dark for 5 mmutes,' dIlute to 300 ml and tItrate WIth 0 0375N phenylarsme OXIde solutlOn (5 10) to a pale straw color Add a small scoop ofmdlcator (57) Walt untIl homogenous blue color develops and contmue the tltratlOn, drop by drop untIl the color dIsappears Run m duphcate Duphcate determmatIon should agree WIthm ±O 05 ml N PAO- 20 XO 1 mlP AO Adjust PAO solutlOn If necessary and recheck 5 11 StandardIZation of 0 IN Iodme solutlOn DIssolve approxImately 2g (± 1 g) KI m 100 to 150 ml dIstIlled water, add 20 ml Iodme SolutlOn (5 3) DIlute to 300 ml and tItrate WIth o0375N phenylarsme oXlde solutlOn (5 10) to a pale straw color Add a small scoop of mdlcator (57) Walt untIl homogenous blue color develops and contmue the titration 3302-2PDF 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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