vncnreslr oILs BY

5,6.4 DeterniElion of SrDonificrtion Value
Ir the veas.bl. oib rponiicrrion v!lu. (SV) hs bai d€l@iocd br dr. 1Lr
&'d IUPAC rErhod 15.31 5s ofenpb e.s nl@ ido rn. 10061Erkdncy.r ILsl.nd 50Dl
oflLoholic poi,sim hrdrxlL elutio! r.s rr.6f€red. An t @dc46 Mr at&ded ro
rlE bp of ft31 .d reou.d 61 30 Dnuq. Tt tbt wls tba mk4 lbl otptdbhirLin
i.dio.lor sohnim wls ..ld.d. ed q6 of pot $i@ iqdroride prclcDr ei6 tilitd win the
tud.rd 0-5 N .cid sldin la. bht dnmilrin trs .ho h.@ rib!&.@at va! th.
sql.- T1E bLnt damiutio! 6rt iN rh. sm vo[!E of rlonotc porr$iu hydroxtla
$htin @ed n r[. !E wry.nd rdir.! for in r@ Irgr! of tim.s r[€ s@ks.
FroD in. w.ieht of $qL md th. tir.rbo v!t6 on tbe blrt !trd lb. eqb, fi€ sponi6or-
rion v.b. hrs bd olculied by rtc b[owitrs 6tmL :
5.6.5 lodio. Vrlu.
Bbt ritu $.ql Tidr@ x No@|ny of Acd r 16,
S.qL *oilbt nt cnN
(5.?)
For rtc dsr.minriD of iodiF rtu. (rv), wij, n .!.d l5.el n8 &q u€t! 0.25
sD of rr ..li!b hs b.a tufd.d inro |!c 3oOEt sh$ sroppa€d bdirc dfL Tn. oit us
dielvcd n l5ml ofctbrf.@ Anq ..tdi!s rlc 2jDt ofvb i6dn snrioa the ,t ,[ v.s
doppd.d ,nd dlt d ganly to Eix rL sol'nio4 .d pt ccd i! l[€ drrt 61 30 Dinut.s. Ar rhe
ad of t[i tic. rhe sropF u3 bosrt .nd {sbd hb rh. 0.sL *i[ 2oot of rh. t5%
porssid bdid. etllih folbwd hy 100 nt ot wrcr. Iodi& .olurho w.. rtu.rd *i!
3tu&rd o.IN sdi@ rbbrulfit ehdb! dn rhc r€[.* iodid. @bu dtu@s,.d. Fd
&!pl of lnrc,h in.lirror eldion yls r.tdld .nd !g!h tirnred b tne disppar.@e of
bhE @bu. Tm 6lrt d*mi!.rio! wd. m 3iEd,n@6t *nh ihe {EeLs Thc sn
qMndy of 6( rqs€nrs *ft u.d $ nr 6. srpLs &d votw mlr€d wjrh rhe ee volulft.pptnls.
Thc Ndge v.hG oh.ircd for in. bL.l damiM.ioE is ucd b rsdh
ib. b.los@ @nodhti.n of lh. i.db. &t'rior todh. v.lE hls bd olcubled by the