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Tous les autres exemplaires originaux sont film*s en commenpant par la premiere page qui comporte une empreinte d'impression ou d'iliustration et en terminant par la derniAre page qui comporte une telle empreinte. Un des symboles suivants apparaitra sur la derniAre image de cheque microfiche, selon le cas: le symbole — ♦• signifie "A SUIVRE". le symbols V signifie "FIN ". Les cartes, planches, tableaux, etc.. peuvent etre filmis i des taux de reduction diffirents. Lorsque le document est trop grand pour etre reproduit en un seul clich*, il est film* it partir de I'angle scpAHeur gauche, de gauche i droite. et de haut en bas, en prenant le nombre d'images nicessaire. Les diagrammes suivants illustrent la m4thode. 1 2 3 1 2 3 4 5 6 •m ill I r I LABORATORY INLAND REVENUE DEPARTMENT OTTAWA. CANADA BULLETIN No 297 Effervescent Citrate of Magnesia 7nin-_i U*? : hi' !.r '" LABORATORY OK THE INLAND REVENUE DEPARTMENT OTFAWA, CANADA BXJLLETIlSr No. '297 Effervescent Citrate of Magnesia U. Vim f ST, Edij., Deputy Minister uf Iiilaii.J Kevenue. Ottawa, November 10, 1914. Mum bi-carbonabe i, added, causing eflfervescence. and nCtralizinK 38 arf i^s of 1^^ ;tnc «=.d, thus leaving about 5 grains of the f^ acid to gSe a"Ve^"t'L^d1t;t'tr Unless this drink is prepared for immediate usf it must be keot in a strong h„^»i :t|p;^n^u=?f:;-;;srsr .rbonate is required to contain at least 10 p^ cent of malrne fa (t^.e O^L'^^^T"" -sume this minumum value, 66 6 parte of such car We anT g-J ™^rP f •. • " "^.^ -e required to produce 100 parts o? Citrate of M.^e^r ^ "" "^ "'''"' """^ aik^O, +2CH,ft^HK)-(O.H,0,)iMK,r3CO,+5Hrf), < 'arbuaale •>( uiagiiesia ib. liow.Ht^r, uusuiud to tin- coiiM-iiieiii |ire|)Hiali.«ii -.f Ui.- .mate on account of ilH insolubility m water. It follows thai, if the taxativp < itiat- ..f manieHia is required to lie present, it must be B.M.d as kucIi. EfferveM«nt Citrate of Magnesia ii not II. iition.-.l in the l!nti>li l'liiiniiac..(HjeiH. Kffervesionl Magnesium HulphnU'(Magncsii Sulphas p:ffcrvi-.s.en>v'i ICtlervescont Epsom .' alt, ii* defined, and consists of MaKnesiuni Sulphat*-, .S<»liuni bi carlwniite, Tartan, arid and Citric acid and Sugar. Instructions are to heat (50 ounces) crysullized sulpliat.- ot iMiignesia to Io-,s ot -'.5 jki cent weight (bv which treatment 50 ounces of the crystailizecl siilt oontainini; 48 S per cent of anhydrous magnesium sulphate and 51 2 p«T cent wnKi. l)er..riies .'58 5 ouncis of a partially ilehydrateH807. H ,,U) 12 •> Sugar 10- •' In this calculation 1 liave assumed tot*l dehydration of the Sulphate ot Magnesia and the loss of a certain amount (J 4 oz.) of carbonic acid from the bi-carlxinate of soda. The calculated result can only be taken as an approximation to the facts, sin ineviuble. It is, however, sutticiently clos<; to indicate that the commercial article offered as Effervasceni Citrate of Magnesia is not Ui !« confounded with the Effervescent Sulphate of Magnesia of the liritish Pharmacoiioeia, which contains approximately 2.i per cent of Magnesium Sulphate while the amount of this salt found in tlie article herein reported varies from less than 1 to about 6 per cent. It would naturally be cxpecU^d that an effervescent citraU* of magnesia should be analagous in character to the pharmacopooal effervescent suli)hat»', substituting only thi citrate for the sulphate. In such case, the predominant component should be magnesia in such a form that, when used, this ro.gnesia would Ix; present as citrate. The United SUtes National Dispensatory of Stille, Maisch and Caspar! (I «iuot<' from the 5th Edition. 1894) contains the following formula for KfFervescent .Mag- nesium Citrate : — Magnesium Carbonate '" S"*"- Citric Acid 16 '• Sodium bi-carbonate -^ ' Sugar '^ " The German and French Pharinacopiieias are ijuoted as giving the same formula, a statemeit which I have not lx.>cn able to verify. The U. S. Disfwnsatory of Wood and Bache (17th Edition, 1895) contains the .same formula. In this formula 16 7 grammes of citric acid are required for conversion of the magnesium > ■ nmate into citrate. yielding 17 9 grammen of Magnesium Citrate ; 28 3 grammes of citric acid are required to convert the bi-carbonate of soda (34 grammes) ir to citrate of soda (34 8 grammns), leaving one gramme excess of citric acid in the frt>e state in each 98 grammes of original material. Tliese numliers may, for practical purposes be taken an percentages ; and the formula is a good one, resulting in a pleasant effervescent beverage when used as directed. In the absence nf any other recognized formula for filffervescent Citrate of Magnesia, I am disposefJ to interpret the results of analysis herein recorded by reference to this one. Determinations of sugar, UrUric acifl, citric acid, sulphate of magnesia and bi-car- bonate of soda have been made. It is evident that neither tartaric acid nor sulphate of of magnesia are called for, nor should they be present in an article which is offered under a name which ^.'ives no indication of their presence, but on the contrary, purports to contain only citrate of magnesia ; or, if we accept the above formula as authoritative, citrates of magnesia and ?oe noted that in all "the samples, a much 'Uglier percentage of sugar "is present than the alx)ve quoted formula requires. .Magnesium sulphate in amount from 1 to 6 per cent is present in all but s ^araples. Tartaric a'-id is present in all but 3 samples. The result of this examination is to show that the commercial article solil as Citrate of Magnesia contains no citrate of magnesia. It is, therefore, not true to name and the name under which it is offered is entirely misleading. Its aperient properties are (in neaily all cases) due to the presence of Epsom Halt, and to the .•iodium salts of citric and tartaric acids. It is extremely variabl,' in character, sugar forming a principal ingredient. While about 8 per cent "sugar is indicated for the Effervescent Citrate of Magnesia of the U. S. National Dispensatory, and about 10 per cent, for the Effervescent Sulphate of Magnesia of the British Pharniacopi«ia, 1 fin.l about -JO per cent to aboxe 50 per cent in the samples now reported. f find no intentional fraud indicated by these results ; and the history of the article, so far as 1 have been able to follow it," shows a gradual effort to modify the original effervescent citrate so as to produce an article which should be more practicable and should meet the Uste of the public while retaining, as far as possible, tin refriger- ant and aperient properties of the prototype. The name has meantime been retained, but without any purpose of deception ; rather, perhaps, for lack of a convenient substitute. Now that the commerrial article has assumerl a form in which no citrate of mag- nesia is present, it must be evident that a change of name is in order. Some manu- facturers recognizing this, have suggested that the name O'rannlar Eff> rve»cxng Sa/U might be a.lopted. Whether by the use of a non coM)mittal term, like the above, or by theu.se of a truly descriptive name, such as Ejf'i-rcniicf.nt Citro Tartrate of Soda, with EpKOm Salt and Sugar, it is apparent that something must Is! done to prevent the misuse of the name citrate of magnesia, at present employed. The report now submitted will serve t advise the public regardmg the true char- jicU-r of the article, as now offered ; and the question of a new name for what is widely in demand, and apparently approved by the public, will engage the attention of you.' Advisory Board. I beg to recommend publication of this report aa Bulletin No. .9/. I have the honour to be, Sir, Your obedient servant, A. McGILL, Chief Analyst, 70157 Si^(^^o.-oo.cA-.::r^ >^^y .MOXTREAL- 1014, 1(1 K III 10 111 10 Ki 10 11 11 11 II 1-.' VI K 12 "i 12 14 14 14 IferveKCent I'ltratf^ of Ii24.jl .1. A. Awlin. SWC-iilrt- S|., Moiitnal •JO »i ;io MiKwii, Cain- ♦•ntii A Wait, 3 Xi-tre i .. Dame St., West, Mon- treal. 62l."i5 Ur I^Murn.wi, 2"07 k „ Notrp DunieSt.. Wwt, Monli-eal. t>24.'Vi Canadian l>rux Store, :jl«oti? 1787 -Notre Danie St., Wen, .Montreal. 62457 .1. H. iJ'AitflH, lfi2: i. lb. i Notre [lame St., West, Montreal. «2458.>. O. Mathieii, i^Xi •■ .. Notre DanieSt., \Vi«t, Montri^l. 624.V.HJ M. Liilonle. 1:12(1 ^ .. Notre I )anie St. , Went. Montreal. KW> I!. Kai/.inm-, 701 Noln- \ .. Dame St.. Wen. Mon " trial. fi2li-l .Me( Ulen' IMiannacv, .">45 i ™ NotreOaine.St., We(.t, " Montrt-al. t;24i;2.l. Pipon. 412 Notre ,V „ I )anie St , West. Mon trial. 62|(>3 Hirk»' rharn.iity, :i40 i ,. Notre Dame St. .West, ' ^IontIeaI. «24(M H. i: Arehamlwnlt. 7fl f. .. N.ii. DameSt.. W.-t, Montleril. B246.". A. I* Beau. 4(l."> St. i „ .>ame«St.. \Ve«t. Mon- ' treal. CUm.l. K. H.Uuii.p.ll.-.Wiiid S, „ sor St., Montreal. (>24<>7 I-yon« tint Kate Dnij; 1 Iwt.j (>,") Store, Catherine and | St. Ijawrenee StN., Montieal. ()24C>t i' h a r m a c i e Koliert, i lb. . | M Nat. Drugand (.'heiii ('raiy ami St. I^iw- | Co. 1 renci- St»., Montreal. , i «246»'.I. H. Nault.42St.C«th'i „ i 25 Inknown j erine.St.. Kaj"t. Mon-^' | treal. i 62470 Allwt's Drugstore. 27l'i .. \ X> \ .. .St. [.Awrence St.,: j I Montreal. i ; McKwii. Cam- en 111 & Wait, l,td. I,\niair>. I.td. . . Nat. Dmg Co.. . 311 .. . :*) :10 Toronto Co. 25 Unknown 8fi i 2.'> i ll.ynianV, Ltd. JNat. UruKCo.. 'Lyman's. I,td . . Lynian'.H. Ltd. Toronto Co. Fhannaeal Lyn,^ », Lul. I M EFFERVESCENT CITRATE OF MAU aSIA. Inaiirctui'V K«|urt. (U not an rs|ir«iin •>{ i>|iini(in.| KraultK of An»l)''i». .■2 I i I i I : ll j| RfDiarlu Mid Opinion o( the Chief Analyit. d U. J. KKARXKV. INSHKCToK. pc. I l>.c 44-6 14 1 51 8 411*' 14 4»'8 H ! :ao 18 p.c. I p.e. ' ^* 27 p.c. G 12 2 2^ 13 9 4 5 27 3 30 2 16 3 i I I 680 Now. 1 .i .M 2 17 9' 15 . 50 lu-o m 21 23 ;«2 18 47-5 7 22 6 17 S8 47 3 22-5 16 41 1 32 8 .MO 58-4 2 17 8 15 I t 13 I 2j 28 ! 3' 18 ij 12 21 27 16 7| II I 18 2! IG None 20 5 8 27 4 2 27 8{ 22 40 9| 11' 45 I 3 5, 20 15 40 i : 2! 51 26 I 6 None! 44 I I 3 7 40 4 5 26 1 <«, 43 i Nonf. 46 7 63461 Containn no Citrate of Magnesia. 7 ^>24.^2 8 62433 t. . r,::tS4 I 3; G*.466 2 62456 6| 63457 6i 62458 63459 63460! i'8| 62461; 3i 62462 ;'0' 63463 I ^ 1 63464 4 3 28 3 62465 ' I 105; 46 2: 6246ti 6 0^ 28 1 62467 2 4 40 4 6246>* 8 3 5 30 2 62469 3 .y 20 7 62470 BULLETIN No. 297— II Name and A'Wrtio (if Manufacturer Ciwt. Furnisher a» given by the Vendor. ■3 Natun of Name ;inti AddrcRH (»f Vendor. "9 ?5 I >• I 'S i S ' ^ ManufafturtM-. Knmiiiher. UlSTRKT OF TORONTO— 1914 M:ir. 2U 20 Etterveaciiit Citrate of Magnettiii . ,. 23 .. 21: .. 21 .. •» i . 24 M 24 1 May el i (i-.'li7 K. <;. \V...t 4 Co., SIIJ lb. iirKi' St., Torontit 1: Vendors tai-'xThe Lvnian Bros. Co., 1 .. Ltd., 71 Front .St.. 1 Ka?*t, Toronto. i 62120 The liobiTt Sun|ison Sl>ot». Co., Iit'1.. iMeen inil^ ! VidiKe St:*., Tontntfi, tl21.'iOTheShuttlewortliCheui. h lb.. Co.. Ltd.. Wilton and ' Victoria StH., Tortinto. B21;il .1. F. Tavlor rhainiacal I, ■■ Co., Ltd., HI William St., Toronto. 62i:aThe Moyes Clieni. Co., i ., j I*.d.,257.\delaidiSt.. ■ 1 Wect, Toronto. fi21;«jTonmt2 Spa ilina .\ve., Toronto. 6313!)|II. A. Sf«it»w.««I, 412 I Ct>llege St.. Toronto. 62140.1. W. StnitlHTH Sons, ; 207 Kuclid Ave. Tor-j j onto. 1 62141 F. S. Tayloi, 2!t2 Siia-J diiia .\\e., Tontnto. I 62142 WiUiainrt l'hartria<'y, Ii84^ j Queen St., Wexti Tor-j onto. 6ai43i.I. W. Lawrence, it96 1 I tju.-en St., West, Tor ' 1 onto. 62144 K. .1. Doak, 1470 l^ueen i ■ St., Went, Toronto, i 3 hits. 4 lb. 3 jars I, lb., i 57 H. K. WamiHile & . Co., F..td., Perth, Ont. 4.") Vend< irs 20 E. ti. West * Ci Toronto. 30 62116 82175 (!. C. McKarlane, 505 J Collegia St., Toronto. (;. W. Ferrier, 233 Col- 4 lege St., Toronto. 25 |The Moves Cheni. Co., Ltd., Toronto. 20 The K. H. Shuttle- worth Chem. Co., Ltd., Toronto. 25 The Nat. Urug and Chem. Co., Ltd., Toronto. 20 E. i;. Wect & Co.. Toronto. 28 The K. H. Shuttle- worth Chem. Co., I Lul., Toronto. 25 jThe Toronto Phar- macal Co., Ltd., Toronto. 25 The Lytnan Itro*. ft Co., Toronto. 25 H. K. Wamiiole * Ci>., Ltd., Perth, t>nt. .J£1I. KFFEHVE80KNT CMTKATK <)K MAGNESIA. lU not. an txpn-H^itin ol M)Hl|iou. I Ivt r>i(ltti of AnalyHJK - il i .if th.- Cliii-f Aiialvst. J-5 : Z II. r. DVtiKU. INSI'KI'IOK. \v.-».. Ii.c. I>.i-. 1..0. p.r. lie. ' 2(i M 14 9 ilia 4 7 42 4 Ii2ll'7;('"iituiiiii in I 'itrati- of MuK"'"'*- 23 It 112 L' 24 4 Niiiif 4!l A ii2l2H 1 1 4i:i us 12 •' li 1 2« 3 laiai' 34 "i 14 Ti Hi I "i I ;«' » ii-M:tii r.niwn Oil.Hir iliii In .'11 I i IH .s IT Ti Niiiie. 43 S (12i:'.l iM-niK iiM'Kli'iri). I i 2:j 3 ll> (i 22 U 2 1 ."i2 G2132 23 1 21 3 l« i; X.iiii-/ 4ri (i liJl.UI 33 li IK r. I'l li 2 .")! 411 (i ii2i:U 22 Ci IS!) 115 4" 41) 3] «213J CuiitniiK )'liui.|ilmtfi«, ('Miitiiiii* im ! ' Citratf of Mainiccia. I.'.K \'.i '.)l Tin- I" .11 31 It It) II 12 ."» Ill 32 1 02130 Ciiiitaiiiii 111! Citrati. if MuKUwiia. P. M. Alt It.y. Nil 13H. 'I'hr IV..1 2-* li l.-> 3 17" ■"• 3» fr Ii21»7 I'. M.A.t •Staniliiivrili 1. Ini- 2ii 7 12 ll.'i •") 2 31 !l; 8213I* |Nil-l».il iiltll r.il'kil;.'f*l . I.v Vi.n ti.r. I 27 2 13 21 !i 1« Mlil ii2l«t 37 li 14 2 1« l» 5 4 3ril| 1.21411 4,5 !' i:i I III!) 3 3! 3«S; (12H1 I 32 5 17 1 ISI) Tili! 42 II2142| 41 H 15 !l Hi !t ."i 7 .tfi B2U8 ! 27 B 22 2 IM Hi Nunc. ."HID ll2l44lCoiiUiii» im ('itr»t<. of M»(^tM•^il^. 28 3 219 2« 4 47 U U2U« 7 23 8 III 9 5 It 42 H3l'6jOotiUiiM Fho«i)Ualm<. ("uiiUiiiH mi Citntf uf Mtgnmia. ! I 3 Niitui« Simiplv . lU BULKEHN No -'97 I Xant*^ ftQfl Addrtiw* of Maiiufiuaui>-r (JoMt. ! Ill- Kiirnitther, Hit given tiy the V 'IhIdf. NttllH' 5 :: i Maiiiifjn-turfv I"'urni'*li»-r. DISTRICT OK H\.MII.T(»N 1»14. April 16 Klfeivi-Mtiit CitraU- uf MiifriK'i'tH. ., Hi May W •a 21 a» 1 I t •BfcHlli. K. McUuw.U. 212 i Colborni' St., Hr:int furd. iiit222iC. A. C. Camcudi. lill i Colboriii' St.. Brant foitl. IK(223;liiKR<"lj>>tl:uui Jt Cam I ftun, 'Xi'A Col'xinii- St., lliantlord. 4.1. H. Smith. Duim-ill.- '. (<:<*i2."i W. (i. Suiitli, Wi-llatiil i. Ii322ti.l. X. Walk. 1. St. <'atli- '. Hi-ine**, rp3227iK. W. .ritfs, St. Catliir- ), ill*"'. IkI£M.I. S. M»u«rtiic.\ . Xia-4 l^ra Kallx, Out. t».i2!l; \V. A. Howell. Ha:iiilu.ii \ tJSaaolswwt & Dunliip. H;iin ', iluin. 8S2.J1 W. B. Smith, HaniilU.ii -l. Chf'JS HeniieiiM'y l>rll^; Sture^i Hninilton. i tl>. 2.^) Xat. Uru}.. Ltd., Hamil- ton, L-O Till" \.\WM 11 ro:,. Co., iTit*!., Toronto. •Jl Thi- v.. li. Shuttle- uorth Cheiii. Co., I-td., Toronto, an Th- Nat. DniK anil Cliiiii.Co.. r.til., of r'anada. •i:> TliB K. 11. Shuttle worth Cheni. Co., Toronto. 2."i The Nat. Dull,' and llriiu Co., Ltd.. .>f Canada. Lt) The Mo.ves Clieni. Co., Ltd.. Toionui. 2.') The Nat. Druv and Chein. Co,, l.til., Ilamiltoii. 20 I 'nknown 'J5 Toi-oiiio PharnKU:al Co.. Ltd., Tonrtito. 26 K. C.. \Ve«t X <"o.. Toronto. ■JO The Move, Chelll. Co., Ltd.. Toronto 11 KKFKRVKSCENT CIT ATE OF MAONKSIA. (Is not an «*x|»n'»«tii(»?i (if I ►pinion. ) RpftnltM of AnalyittH. I I -i Hill 6 ^ 5 |m** |S* H. .1. im<;kr. ac'tim; inspectok. Rmiiitrka and Opini<f Aiwlyiit. \i.C. |M-. p.C. |bl'. ' p. C. I 29 () 19 f, 1.-, 3 2R 41 7; fi3221 ConUinMiii Citrat«- ..f MagnMU. 2S 2 19 « 15 7 8i 12 5 63222 3.' H 14 .'i 19 3 -.1 :»3 l«223 I :« 1 20 2 14 2 2 « 41 OJ 63224 I i .'«• 7 1"> 'I 19 II 5 (V .-Vl n| 63225 39 II 19 X Ifi S 2 9 415 24 3 13 8: 21 1 2 .Wl «»2»> 6;t»i7 3S-8 20 15-5 2 7 42 63228 45 7 14 9 II 3 .-) 1, 36 8] B322!> 27 3 22 5 WOXoni'.' 50 oj 63330 i i 313 16 7 18 H 3 7 42 3 63331 S