File:A study of the ternary mixture benzene, acetic acid and water with referene to the mass law (1902) (14578779498).jpg

Identifier: studyofternarymi00mape (find matches)
Title: A study of the ternary mixture benzene, acetic acid and water with referene to the mass law
Year: 1902 (1900s)
Authors: Mapes, John Victor
Subjects: Theses
Publisher:
Contributing Library: University of Illinois Urbana-Champaign
Digitizing Sponsor: University of Illinois Urbana-Champaign

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riied sudde:ily. The lonerla::er r,as tl:e.~. allon^ed to puass vthroiir-;:! until t/;.o upper surfaceor t..:c ooundary bctijecn tno txrc layers reached the stop-coch r/nenit Y/as turned ar.;ain, thus separatiiif; the two layers conpletely.If the stop-cocl: vro.s turn.ed Gradually, t):e liquid ran;, cioxiiz tliesides fillinc up the Icnrer portior of the U and confi::i:: airIjctT/cen t:iis liquid ar.d that above tlie stop-coch. As soon asthe iTOinlit of t!ic licuid ahove tle st;:p-coch hecc::.es suf icion.tlydecreased, the air is r.o lor.r^cr conf i^^c hut rushes up thrcughthe renainin:^ liquid and :.:ixes the ty/o layers. . After separation, tv/o cc. of each layer nere talten niddilute to ^.:)0 cc. T#n :::hic ce iti::eters of eaCi of tlj;se solu-tions ^-ero tnc:i pipetted off and tlie acid deter::i:ied oy titrationT7ith fortieth or-.-.al o?.riu:.: Iiydroxide, usiiif; phe:iolphthalei-. as an hidicator. Y/ith the portion fron the benzene layer :.iucli diffi- LlBRARV .,NWtRsnvnLU«o>.
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LIBRARY cult:; v;a.s cir^oric^cccl iv. oijt.^.i:i::.g a poii.ianent ci:- -reaction.The pi::l: color \70iil: .^ernict :Cor only a zlicrr, ti:c, :i fOTV dropsof bariin.i Iiyclroxiclc -.roulcl restore it, but tnis T7culd fade aiid I it -.Tan for f::is reason t>-at clor:o dmlicatc rosiilts could not ) j be obtaine(. s/c first, .or excLvple, a roo, in.;;;: ?.s lor; as G.72 ccvand as as 7.30 cc. vas obtained for tlc upper layer, in^. tle first so--)aration. It Tvas also found tliat COo i^ tne airaffected tl.e ti:ratio:i scr.iowhat sc t)iat the deteiznin.at ion.s ncre ;..lade ir. stoppered flasers an.d tlie e v: poln.t talren. ■■.diere a fai::t ! :l\ red colcration. roi.iained after persistent sh.al:in.g. In, case of the ;T7ater layer no difficulty i7asfouMlin.:gettinr a distinct end re-action. Doteminations on the foliov/in. r.iztuios ncrc i.iadc; TilBLI,: VI.2 cc 01 layer diluted to 250 cc.10 cc of this solution used for each titration.. /V4 fkrc&nt taken- V~/ t^cft/ on Add banz

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