Iowa State University Capstones, Theses and Retrospective Theses and Dissertations Dissertations
1950 Part I Chemical kinetics of the oxidation of manganese to permanganate by periodate Part II Solubility, activity coefficients and activity product of manganese (II) iodate Anson Mack Hayes Iowa State College
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Recommended Citation Hayes, Anson Mack, "Part I Chemical kinetics of the oxidation of manganese to permanganate by periodate Part II Solubility, activity coefficients and activity product of manganese (II) iodate " (1950). Retrospective Theses and Dissertations. 13713. https://lib.dr.iastate.edu/rtd/13713
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Ill 100- 't' 2-^ 32 40 43 TIME (MINUTE) Figure 6 - Rate curve at 5260 A No. %G10, H^IO, to (ClO^), 5 6 9 1.885 .250 3.5A X 10 10 1.885 .1871 3.54 X 10"rU -4. 11 1.885 .1248 3.54 X 10 - 29 - 1.4- s i.0-- 0.4- 0.2 - 0.0 20 28 32 36 40 4s time (minutes) - O Figure 7 - Rate curves at 5260 A No. %C10^ ^51% ^KH (103)2 %n(C10^)2 12 0.424 .136 1.94 X 10"^ 3.65 X 10"^ 13 0.424 .166 1.94 X 10"^ 3.92 X 10"'^ 14 0.424 .150 1.94 X 10'^ 7.85 X 10'^ - 30 0.9 08 >. 0.7 "m 0.6 z o 05 < 0^4 u pa3 a. ® 02 00 TIME (MINUTES) Figure 8 - Reaction rate curves No. %n (010^)2 %C10, 4 '"HIO^ "^5106 1 3.92 x 10""^ 0.424 1.13 x 10"2 0.232 2 3.92 x 10"^ 0,424 0.379 x 10-2 0.241 3 3.92 x 10"^ 0.424 0.15 X 10-2 0,243 A 3.92 x lO"'^ 0.424 0 0.245 - 31 - 2.50- 8.00 — C I.S0 1.00— 0.30 0-®® ! M TI I I I I I I I M I I I I I I 1 I I I 1 I 1 I I I I I I I I I 0 2 4 6 a 10 12 14 16 18 20 28 24 26 28 30 38 34 36 hme (minutes) O Figure 9 - Rate curves at 5260 A No. %ciO '^KH(IG2)2 ^^5^% ^Mn(ClO^) '^'kMNO 18 .4-24 1.94 X lorl .167 3.92 x lO"/" 0 19 .424 1.94- X lOo .166 3.92 X 107 3.02 x 10"^ 20 .424. 1.94 X 10 o .166 3.92 X 10 7 9.06 x 10"^ 21 .424 1.94 X 10"^ .165 3.92 X 10"7 1.21 X 10-4 22 .424 1.94 X 10":; .163 3.92 X 10"7 3.02 X 10-^ 23 .424 1.94 X 10"^ .160 3.92 X 10-7 6.05 X lO"; 24 .424 1.94 X 10'^ .157 3.92 X 10~^ 9.06 X 10"^ - 32 - g 0,^"- , "T—i—' 1 I 1—I—!—^—1—T I' 1 ' I——r , , 0 0.80 1.00 i.so 2.00 2.50 3.00 3,50 4.00 4.50 5.00 5.50 6.00 time (minutes) O Figure 10 - Rate curves at 5260 A Ko. H^IO^ HOIO IO3 U 25 1 i 1 1 26 1 1 1 1 27 2 1 1 1 - 33 - 40. 0.3C 29: 2.WV 2.So 3.50 S.5V TIME (MINUTES) Figure 11 - Reaction curves at 29° and 4-0° III Mn - 34 - w O.SO— 4o; O 0 40 29; 30 — O.OC- time (minutes) O o Figure 12 - Reaction curves at 29 and 1^0 Mn^^—^ MnO' - 35 - teaetieai »#re Mte Im wlii«& ipeistfal wiiflB ff®b 3$^ t ta |0©6 |. was smm»& m mpMly as pe»#ifel#, ftt eriftaal emmo" tmtim ©f ttaiw mmtimm «r® giwa ta fafei# II* 1 plot «ff ttea # ® <2|>ti@al itii»lt|' at 1 aat at t&e p«i*»gg«wt« ptak at 5®60 A wai mle' &»i bat 1M»@& as figaiNi 3.1. s* ifisny^yyi, ©wlag aicpltamt^ aa^ mpmeimw^@ it mm notle#^ ^t whll® aiilag a s©lttti« #f p-ftasii®® fe»iiigarait« t» a »c»l«fei@a ^ wiaganpe (II) p®r ^4, Biff, S*|e IMIM (tm)* m ^ m film JI laltliEl fa? S'saafilag 'Iteaeti^s %5l(% %ei04 •w^ «I1©, %h %f2 m •263 .424 0 @ M. 3,m X1©*^ .a63 .424 © 3a X 10*3 n 3.f2 3C iO-^' .263 ,4S>4 0 §.2 X 10-^ 44 * 1©*^ .^3 .424 3 X 10^ 3.1 X 10-3 5A 3.»ia X .m #424 3 X 1©"^ iai. 6A 3.ft X ir^ .131 •424 6 X 1©*^ 3dl ?1 3.f2 X 1©*^ .a63 , ^•424 © ® iA 3.^ 3i'l©-i .131 ,49J^ © © - 37 - j?c- 1,60 i.50' 1.40 1.30: Mn' !.I0— MnQ 0.90— o 0.80 0.60— 0.50 0.40- o.io- 0.00- time (minutes) Figure 13 - Rate curves at 5260 2 and 36OO Aj Mn^ O.D. obtained by difference. . IS . . mwgH if»k left «1»@« siivii*! atteiifta Isy %lm Mi ia %ht Mfesamtorj dii aofe rtpp©tiMMi MM fht awit witiwsi fytpi»ti« ei pwrfl# ®»y »at®jri»l foraA ii&s t© th« »st®ri*l with iodie aiiM ftm n^mtima i»f mw^mm |IIX) 0.m#rS)ie 4 S'@^p3.«i prc^tinir# S pe« sC p'«l«s8te w^r# tisfolii^d to fO «f wftttr, tti® r«stiltl»g ®atoti« was aMiwi i® M sdlmtlw it fM« ^ (XX) ietftt- kyiirat© ia tli® pr*8»tt««- ««©«•# hfircflaafie utM, '&• ietal wlwi was 200 *1. A 8®ltttiai e«t»toAia^ |3 p», 1©®!® atii In $3$ eite«^ VftS' aidsd. - Ute# was amh Wmt Ili8 fljoaX •tltonol e«ii®»at»ti<« was •l&tm'l §#• fr®«ipitat« was apm ft 8iat«r®i |^@@ iisk m mpMiy m an# witahti with wftt®r-»that»0l. wixMmm* l&« timl vmh was wilit ff| «tlMiii®l 1ft spitf t@ wmmm as Kotli w«t«F m poi'SiWe# a« filt«r©€ wa« th®tt fSji-eei ia, a A«8®ieatse m& mllmei. to Ary f«• kmm »til. m ©i» ^ sleito©! e . ?fet thewretlQal hsm bi®a »kmm fe®3.«« rnmmmm^ f .411 .§5f 94.111 mim ms t 2$ 9ji^€ffli^i3nL0 — ii M II A * A ClKi4ai4 in&apu3*ie'vmwie i#tli pe'ie>i.@iat@ escMfttion t® f*swMika|iiiiat# liy ®®lwtis§ii?4e &mi^viMm with a aiidtel^ fr«ptr«i stiwaiat^i aai toy iptitleia im nir «f tfe® wai^d i3^ iMllt ^1%'* gsm M»iti®«l feselti witMii tlwi lOftrlffleatol m»m% IMti® «•» lai# fey «®UL««t- iBf fi»# ioiia® la ftlliwrlsf th®ifi»l q£ « .aM tltirttlJBf wtife- tiiiosiilfitt® ttlMtlaa.. *l«if th® ©heaital p?©- fertl»s ®f %lk® i«l% *«r« taken a« •vMaae® fm tM# aaa- mms» Cllll t0iat«, ItagaiMMi .Cm) teilat# prepaid m iM m parpl® p«iy Mlvrittl iihi@!3 i«@dipd8ea spim btnatlaf t# ft'^ ieiiM aM ^3%* fh« &xf salt Is mmTMhlf fta%l# i» aJbr far a i«»fatt®8® (III) ®alt» awB't© tib® tl»i af%«f at IW® fm ae-wwil m® 11 1 w i 1.00— 0.90-— a 0.80— 0.50-^— 0.40— ' M M I I I M M ' I M I M 1 M M 4000 4200 4400 4600 4800 SQOO 5200 5400 S600 9800 6000 6200 6200 WAVE LEN6TH (ANGSTROMS) Figure 14- - Absorption eharacter of mnganese (III) iodate ccffiplex Mn(I02)^*'^. • 42 - mm- III I-8«^ fmA%t si «ii»« I« tadintleii t 0.0390 * 0.0435 $* 0.0475 f* 0.0560 »• 0.0594 # i#074i Wt 0.0825 !• 0.0854 »• 0.09X1 f 0.0972 i.H# » easaa 1* 0.131i S- 0.l6f9 §.1962 1 0.2U1 !• 0.2232 !• 0.1312 1 0.2^3 f- 0.^55 f 0.2969 0.3053 1 0.3162 t 0.34S© W 0.37^ 1 0.ISS3 I g E f* I t0 m %4 fi m S •#*43 m » i ^ Ift ^ 4I«W*• & ft W 4® •rt « $1 '«*« s § e •llSk s 1**^• *1t •5 *8 f t~^»HI ^ 1SS, ts «0 H, •g i 0 r4 « ft 4» m 4S<1 f M <4#J i.0_, 0.9_ Q3-. aT_ 0.6_ 25 • •09- 2 .08- .07- 26 .06- .06- 27 .02- .01 time Figure 15 - Semilogarithmic plots of log 3«"X versus time for the oxidation of Mn(lOo) • X % I! I n { \m y nI c*—c % s H f I I ^ f If t . I r Irf i? a m •f » s*- "t l-« _ i t • I -\ a US I € I** j S I I I <" f f 3 f M 1 i A I g & 'C s I I • « "S % 1 # •I I ^7 la © t m •M t I ® >W13 • f % f • • » I I I I I I 1 ® I 11 ^ I m <3 § } 19 #- I I 11 S % I ft 1 I I II ^ i s *' I •& I # I I I »-f II I I I I I % ^ 1 I 5 I f I i I s S 5 5 1 ^ I s 1 I i I I I 4a® 4»M I I % III k i S I 1 I I t $ g S h * .K i s s ^ I ^ i I :11 I I % f I $ II I g I ^ I S $ s 1 i I t I t I I I 1111 I - AS - 0.20-, 0^ I fc_ t' C.I4- 4 o.oe- 0.06- 004- 0.20 0.30 040 0i50 PERIOOATE CONCENTRATION (moles / liter) Figure 16 - Linear plot of the mximum oxidation rate of manganese (II) at various periodate concentrations• - 4-9 - JiX'— awcu m 0J50— h- 3z M O2 OT O> 0120- oiio. a»a —P_ ~ ^-r~ "T^ t.O a.o 3x> 4.0 ft.0 agio concentration (molcs/dter) Figure 17 - Variation of rate at various perchloric acid concentrations. <•* ^ * fiml •3e%ineti»* «x®m@«8 of ioi«ts »M»ii t© slew tke i»t«, et wte with ioadl® m "W itseieWlai^ ami Spi#«i^' tes l»®8 lji®toa^«4 ai tig&m IS. fli® f«»g«4af »(isait» mmmwul fuet® wfeieli «ay pp&pm»^ »s#t «xflai»« fk«»e' em siMMrisei %eleir. I* fhB iSml 0xila@tiM @i pmmn§m&^ m» «@l m ii^i« ilAsar tmetlm &f to® mm§mm* fTmm%,^ ft® w«r® i3»«all|r vith tlift pwater finftl a®e»i0nM' % ««r« m to tMs nal®, ' i« fte« s«pfti«t» <&i oi f«»tti,^aate tiwi to til# liifle@ti«i fdtat ^ ttie »t® ©wrw. 1li« of %oth 40iat« aad f«i»msiiRi»t« t© tii« «i# ttls tiws mtf of wm§Kms@ Clf' miM sb^rtmitf tht ti®i mmawmrf tm mtiskm^ tih« i?t«etiea Miigp^s« (IM) «M® wi^ frttrtMat® was mgllgihl», 4. i l«f 4niiieti« wm ©fe««n«i f» tMi •«nM8tl«i. in «l3i®ai» «f th« tbfft ftee#|«f«tiw> i]^ltti»et», f* a# p«rli3aate <»Atir fm th® i»t« Has 1.0, 'flte ptWKii^MMtt# «pi®ip was mhmt i»S» ft Tkm mwm^@m 'Cll) mAm wm 1»0» t. ' A «l.»l«iii rate with mtjim *®M eww^ntr&tie® tail ^®rw^ at abwt l.,5 M f®i»«M.irle a«sii# 9» I»«r®asiiif tli« sti^nfth Jtoe-iraaswi the fraction ir»lsNSi%'. 1§« Kiap.M»e fill) i@i«t«i wm to fesfMacanate Isi. - 51 - Figure 18 - Variation of rate with ionic strength. ! « t s I I 13 i i I s 1 1-4 I (H m I I i w\ I I I t 1 « J i « S - 54 • aofc. Hie frap^ifi feil®fsi |8) m&l *> If I * la^' I f«ipli •fttilitoyitta (W) •* I I^ ^ ^ J Cn) mu^)^ • 2 -^ia®^ • fx # a)iQ| i k^. t * % {3.2| In^^ • ^ ' 2 ia^ I hj j ?«%© S. 1^ »»• •«qtt£lil!yl* wey® to' tet «iio<^' thftt «f«il.tisriw ttonfiiti®!® ©adiM l» as-swei# fbm @flh«r mmtimm m§m dhoaea m 1^- wmm rf sfeiiftiit lh« f®il%i«o m) ii 5 (IllCtll CM) Bg = ijj Cm)Cisj)2 fUs 0«s®'rsisti« of ««n«t»es# «®sa»ll^ 1C?I5 5 § i?©tialy»8 (15) 1(11) • Hul) • sfif) « -®CV1I| s % • ig fit twi^rfsile® elt.@l»«8 is 'ttt# lew®? aMation si»tt8 (U) a »CXII • 3 »CI1I) • 4 »Clt) s 6 % - 3 % •o^ 0 •1 E I1^ -<»*» M ^ n -*1^ m u w # ,•«»«» Pt 1 ***^ 1 I •en •B 1 «« aT a 11 % ^T' w I^ g •#• 15# •HH Sa s 1^ ft - fi I aw r4 . J* m n ^ • ft s< fi if* m • fi *1 I m » s^ I ^ E w 1:1 1ft n II II II »~>k S H 3 ^ jt I fe' uM •ts 1^ 1 i I o» 12 l§ m i I I i I a ^ I I III m I I I I I f i I ^ I I s % n i! s i I s i f II I 1 i! I s- I 6 I f 1. 3 ^ % i I • ^ I i S •5 *1 ft [1 i i 1 fe ® t %4 I# 41 4 s IS ^« .©I §« o3 t a i - ft - .ilifljBf 0mg'S0 &e tksim '(mp0HmM$@ smmml ftb^mmmm v@m ite®#rr«d: whi# »3t|}«rii»iitg wbi^ wtlgk% to® ©f tt iwt^m fkm^ Mm h®m itswiWi tetiiwt 3.. Hii 'tjf tMai# s^ltJe «f »aBfMie#® <1II) lei %m emmmlmg km th« i®ei© In M#t 1» lilJafi anft S# £, Jp#. .JS# 23i^ cam?). m •• fe» ' •!&» ^ t&mtim&m was ral«i m% ».ime til* -wHiiaaes# {III) ii® io aot t"la¥l# i» •q'^oag ®it i»«k (s£ ani iawafe#®'^ m. tfe® ef tto® ttnwiA« @0^31®* nf nftii|^«s# ClII) «i#% Is® afplltalJle t© iiwi ietwatiatlon The 0Mistmm -af tw# 00IM fhasas was wty afiiaal. &m appaarad iiaatiaal ia apptaraaea t© Mafwwaa (II) taiat® wWlla tht otIieT was a 4afk raUdlah ktmm, flia «is.t®»ee ®e «aiipi««»e Clf) ioiattt liaabaaa si^gaatei by Bayg ai^ tli® appea»Bffie (rf iMa solM phata afp«ar«i Maatlaal wilb liy fr@lewif@i heattaf hyii*t®4 ••iigaa»»« (If) mU* wttte a«M* Bw piias® wtla wh#» SkppUM to th® afewa aol«%l«a witti tteae phaaaa ©©axlstlsf i® aqatlltoi'lia alibis s© ©as^ositioa 4ap»es «f and this reamlt B« icfeaffar »ai E« i* S^mmk»r, g* Sh#m. 2S75 (1950)*' f I I J 1 I n gig I i i i " S ? M s H t I n *•% f m I 11 i sie»' I i r 1^1 s I I f I f t Ml t i s i i ^ m u I I I , P— a 5 P § % a 11 I 1 I I *% 1 i 3 M S I I •3I ' 4 S i I i 11 I i f s I I 11 : I \ 1 I %* I I I I I I J 1 I I» f $ *4-I •» &4 • Pi'rt II f» SSSWIIiIffp MTIflff 0C®lfia,IIIW » mflflTI mmmf m •mmimE (ii) mAfs ^ |» IKllitCSflQi Ife# (11) ia waltf haS' fe««n r«f«r%®4 as 0.5 gA^g ®a^ « ia8©»l«»^*^' ft® imriiiti« dt i©lttbility witlk aii. •©ti-ritr praiaet w»m tt«l itsoribtd. ais Ijiwttipitiaa was isitia%«d a# tie p#sttlt ©f ktaeti# Ktirti®# i» tkiS' laberittmy .lav«lvti^ 'th# «iiatiett gf (II) ia #@lmti€« emimiMmg IMat®# a# salmMMti' dt mrngmm® (II) iodat# i® Hater at wi««s tii^imtiopis is aq»©ia »0lttti<»i8 potainia* l^ftt©,. •aoagimase (II) pmeMl&mtiSp a.®i aoiiwa elil»id« mem lOm haw h%m mmA t© «e8^ttt» th® aetivi% ftetlfitf proAoet ©ai -ttt# li«at ^ toliitioB #f wm» (II) i@a«t«* %• f, l«*wlsfe«rit ESB* $M*t Mf ^ (liA2), %. Mtt®, im* Mm* Qm*» C0# &$ wt (isfo). I I I i I 1 ^ I »» s I a i 4 g m. 1 I u •8 I I » I 1m a d' m m I II I m 46 • Ml s©lmtlai« wtw pmim^ % ijplei salts euliSag % •wit«i» t@ ttta# suits in n flwiiE# i* Asi^i^tlBi 4 wi^ & tiaip®isatte« taftteol • ,@8® im» lewei fof h&lm 4S®» iff««%iw *'fei»l^ arf agltatiaB mm pwmUunA ly ii«Mi»» rf « IfeBPrtJ. .«l«iE«,. 1. S^«fel«« &i mm§m»-m (II) 'W«m im tw#»ty imt kcfor® s.i a«i 4S®« v^Amm «# tlitwa s@lmii«ii iia.» spprtiKlw^ly ilOO isl* sSitibilswiliig swlysiji^ 2§.itl# «llQiai@%# irm t& ill# aoiitiiaiiftf 'MgiifltM (111 #oiiw* iklwUl# w»i. a»lytisi.. ^img lyiyidMlwle a«M loti€e aii tliyatipf tos iMtm# ulilk aoilwi. Bit «f •Mitt* eldl«ii« ««§ fr«p. tii® wtlg^ts •«f th« ml% «i th« mtty ^s^ini# 'fli# alt^idts fro».%i« mlm%im$ mn%a.imlMg p^nwims. mr^ eisMiaei t© p®r®Mtpusst«' m®M ia smlfwte auM ®^ » i % % m I % I m «t f I I n I SII - g ! 1^ |>p n t I I I* § I i Is i i| E I* I M m m mm I W&U f» Ctl) luiat# f»api»twi SAASlltl' JUL • ®.0O56t 0.1310 0.00 4.03 I© 0.00621 0.1637 0.01007 3® 0.00625 0.2110 0.02462 3,n 0.00751 0.2843 0.0554 3m 0.00786 0.3670 o.iioi l.is I® 0.00902 0.6610 0.4070 3M 25® 0.0G65S 0.1407 0.0 4.03 if® 0.00694 0.1760 0.01007 i»ai 0.00761 0.2179 0.02462 3.m 25® 0.00836 0.2840 0.05540 %m 25® 0.00896 0.3681 0.11080 3(»^- 25® 0.01041 0.6630 0.4070 ai« 0.00474 0.U54 0.00688 4.13 as® 0.00211 0.1688 0.02213 4.ti 25® 0.0006i46 0.2554 0.06218 4.1© 25® 0.000301 0.3335 0.1091 4.43 25® 0.00397 0.635 0.113i 1.40 25® 0.00531 0.192 0.010305 3.00 25® 0.00560 0.1Si 0.007-43 2.63 45® 0.00713 9?^ 0.00854 - 70 0.007J -D- 0.00!-. aio 0.20 030 040 050 0.60 0.70 Vll Figure 1 - Solubility of mnganese (II) iodate in aqueous solutions of sodium chloride, potassium iodate and manganese (II) perchlorate, O - Sodium Chloride ^ - Potassium Iodate • - Manganese (II) Perchlorate 71 - 2.00- -Z02_ -2i54_ -2.06- —1 -2.08- 'S o -2.10- c a -2.12_ o >- -2.14J 1— -1 S -2.16- 3 8 -Z.18_ § -2.20- -1 -2.22- -2.24_ -2.26- -2.28- -230- —T——I—I—I—I—I—I—r—I I r 2.7 2.8 2.9 ao 3.1 3.2 3.3 3-4 3.5 3.© 3.7 3.8 YI * 101^3 Figure 2 . Plot of log /solubility MndO^)^.? versus the reciprocal absolute temperature x 10^, £ i ?? S P fl •m 1 m I 1 I !{ i 'e I I i t £ I •m 11 I A I s I « « % m I a I I I 41. & >=» s 11 > I 5 I I 1# « •^Hil I III! - 73 - 1.00. Q900, 0800- o3* 0.700. s 4-1 K aeocL 0500- 0400. Figure 3 - Mean activity coefficients of manganese (ll) iodate in aqueous solutions of sodium chloride, potassium iodate, and manganese (ll) perchlorate. 0 NaCl @3° • NaCl @ 25° ^ Mn(010^)2 @ 25° • KIO, § 25° Y ® ^ i MnCl2 by EMF measurements fwm the .«srf» by mism iwill- Immm rslttimt 4 (198 V* S - U) T" 2.303 S « (|) fbt 'iMMimii wm ml&ti»9/u9l9 im t«ffipwratimi swup) ®f I® t® 25®. fcr th® r®a0ti« ((ifmttffli 5| fcCl%)g ^ • 2 I«>| (5) %&• ff«« tatrp- dto»|p lit 2S® »a« sonpttt®!' a® fsi»f th® f*l«« Sm fet«t tt® "wlm® ^itiaei f« ©utrepj' iiwt®g« «a@ • 19 4- a^«, liklmf 2i«t «»tx^ wits as tm toiai# aaft gssa*i3if ,th® i«si« mtr&pr ^ ill} i» th® ita® «® i« C- 25.f «# «.)• fiw stwiiart tati^F iolM iwapiati# (11) ieiai# Has #a3.swlatt4 to htt A%$ tatrapy miits. %. i. K« i» «»& f • ?• 3wiMt Jm* SttB. |M«) la, it8f cimo)* %• i. Mm tmk^ I. I*, Fr«a%if«*ia.|l, la®.., %9M, f. tit* fl- If« SSWSflE dt (tt) im wm^r at t0»pi«»itiQra» frm - 90® mA ta » I I