โ Scribed by Gibson, C. P.
No coin nor oath required. For personal study only.
9.11) in its early days, when the inachinery wns L ~C W nnd not run in. It was incrensingly effective in establishing the dyestuffs industry during the middle period when the dumped stocks, owing to the Snnkey Judgment and the Reparation Dyes, hntl been absorbed. During t,he last four years i t has t o a largc extent nccoinplished its piirpose and, as worked at the present time, it docs not place the user in nn " unduly disndvantngeous competitive position." In view of nll thio, I, personally, would like to see the Act continued, Iiclieving ns I do that this is best for both user nnd maker. But, " the customer is slvrnys right," nnd if lie prefers a tariff, tlicn I sitpposc this wonderful experiment of ours inny hiLve to go, and ivc shnll he left with the sntisfnct,ion of eleven yeirrs of very iritercsting work wcll and trtily done.
OF GLYCEROL DERIVATIVES. PART 111.
By C. P. GIBSON ' 1 ' 1 1 0 economic protliiction of :I ~i u n i her of glyccrol tlerivntivcs h:is been slio~vn, in I'nrts 1 iind 111 of this wries, to clcpcntl 011 thnt of tlic cliloroliytlrins. 'I'hc prcscnt pirlicr outlinrs csl~t~riatcuts wlrich 1i:is.c IJccri pt:rforincd in ii study of the retiction I)ctaccn the inexpenaivc rnirtcriirlR glyccriti :id Iiytlrocliloric ncitl, rind t he conclirsion Iins been rvucltctl t,lint r~~o~~ocltlorohytlrin i r n t l dicliloroliytlrin ciitl I)c niiidc i n this !'rip with suit:il)lc p h n t i i t rin iittriictivc price. l'lic direct; prcpnnition of the cltloroltydrins Iins lieen invcstigiitcd froin iniiny points of view cluriitg the last century i d pupcrs continitc! to I)c pul)lisltc:tl up to the prcscnt timc.
Uerthelot2 fiattiriitctl glyct+n with thy Iiytlrogcn cliloritlc, Iientcd t.lio 1)rotlitct; iit, 100" nntl obtuinetl iiioriocliloroliydriti. I~L;itiriot3 rrcordetl t,lic forrtintiou of sonic polygIyc(~)ls ilftcr trciit nient, itnt11:r the il~JOVI? conditions for 700 Iir. A inodiliciition of this process 11:~s Iiccn pirti!titctl l)y Npri:ngstoff\vcrku Dr. 11. Xiilinscn k Co. A.-G.;l wIti!r~~iti glycerin siiturutctl with hydrocliloric ircitl grrs wiis trcntctl rit 150' or 170" in ii V I I ~I I I I I I I , irntl inoiiocfiloroliydriri tlist.illctl. Glycerin, 011 silt tiration with hydrochloric acid pis :it 1 W", gave riionochlorohydrin,~ wliicli, nti ftutlictr tm~tnicnt, yicldctl tlicliloroliydriri iiccortling to Clicrniscltc Fithrik von Jhydcit A.-C.O In f l t r t l m pupcr, 13crtltc!lot7 used fuining Iiytlrocliloric ircid nt IOO", nntl found monocliloroliydri~~, diclilorohydrin, iiiicl 1101ygIyccrols to bc ~)re.scnt. At 120" iintlcr ~I P C S S I I ~U , this pr(ici!ss 1111s hccn p:rtcntcd for t,lic Iwodiic:tion of iiioiioc.ltloroliytIriii.~ An eiirly develop-1ncnt in this rctnctioii W I S the IISC of ncctic acid iis ii csLirlyst, wlic!rol)y tlio formiitioii of cliloroliydrinfi is co~isitlcriil~ly riccclcmt,ctl. Using i i Itirgc aniount, 1 lhirlwiriio, Gibson, niid S f c p l i i ~~, .J.S,C'.I.9 1930, 49, 1021 iiiitl ' ~\ l l l i l l l l w , 1853, 88, :I1 I . a Ann. Cliiin., 1870, [OJ 17, W. ' Nivibro, ( h i i i p t ~' ~ rciiiliw, 1013, 166. IO2H.
' l~.lLl'., 2U3,lOU.
' l),lt.l'., 954,70D itlid 2UI),Ut7.
๐ SIMILAR VOLUMES
Although thc propcrtks of glyccrol itself nrc wcll known, and its indiistrinl nitd mcdicinnl spplicntions iirc very varied (see Dnrkc nhd Lewis, CIIESI. k XND.,
In Part I of this scrics (CHEM. A N D h i ) . , 1930, 49, 1O21), a bricf ticcoiint was givcn of thc prcpiirations, propcrtics, and uses of tlic iiorinal ethcrs of glyccrol.
Charcoals were prepared in the laboratory under known carbonization conditions from hard and soft woods. The charcoals were studied by elemental analysis, adsorption of carbon dioxide at 195K, Hg porosimetry, DGA and ignition temperature measurements. The properties of the charcoals were compared an