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The iodine values of the phenols

✍ Scribed by Wake, Ernest ;Ingle, Harry

Publisher
Wiley (John Wiley & Sons)
Year
1908
Weight
256 KB
Volume
27
Category
Article
ISSN
0368-4075

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✦ Synopsis

THE IODLIE VAL'CrES OF THE PHEXOIA BY +lST R'AliE AND IlAllllY ISOLE, L S C . , PII.11. I n prcvioiis papelem it haR hecn shown ( h e . cil.) that nilsaturated conipoiinde, when the cthylcnc liantls arc iinprotocted bv tlie ncighboiirhood of negative group, rbaorbctl iodiiie chloride qiinntitntircly froni \Tijs' nnd Hiibl's aoliitions. One of tlic niitliors introdiicctl a new soliition in which tlic iodine chloritlc wiis held in n ncnk a h t e of combinntion with Iiyclrocliloric ncid, nnd shonccl tlint froni this soliition pnrtinlly protecbtl cloiible linknges were unnblc to absorh nny iotlinc cliloritle. dlentioii wan .nluo miide of the belinrioiir of certnin ~ilicriolic cleriuiitives, m i l n p p e r on tlie iodine vnliie of these siilistnricen liroiiiisctl. Press of otlirr liiisinew has ~ircventctl tlic mirrying oiit of tlicse intciitions to tlic fiill, iintl the tiresent pnpcr inlist lie corwitlcretl 11s only ti IinrtinI study of thc ~siibjcct. \Vith regiirtl to prcvioiis work, the. innst extinustire esnniinntiori of thc iodine rnliic of tlic pliciiolri lins k e i i .cnrrietl oiit IJV 14' n!irion (Zritci. iingew. Chciii., l!tOL, I??O--i), IVIICF;? . . . . t ~i c ._ f o ~I o w i r i ~~n ~i i e s nre rccortIecl:--TOtlillC vnlue by Wnller's uiotliod.

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## Abstract Standard methods for the determination of iodine values of oils involve direct addition of halogen elements to the double bond. Since the reaction proceeds slowly there is a risk of substitution. A direct coulometrical titration method has been investigated.