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Proceedings of the Chemical Society, Vol. 30, No. 427 |
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Proceedings of the Chemical Society, London,
Volume 30,
Issue 427,
1914,
Page 77-88
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摘要:
[lssued 30/3/14 PROCEEDINGS OF THE CHENICAL SOCIETY. Vol. 30 No. 427 Thursday, March 19th, 1914, at 8.30 p.m., Professor W. H. PERKIN,LL.D., F.R.S., President, in the Chair. Reference was made to the loss sustained by the Society through the death of: Elected. Died. Daniel Bain (Gateshead) ..................... Feb. 21st, 1884 Feb. 6th, 1914 Harry Burrows (Southgate) ............... Feb. 19th, 1902 Mar.16th, 1914 Robert Kennedy Duncan (Pittsburg) ... May 3rd, 1906 Feb. 18th, 1914 Leonard Clifford Green (Rrisbane)........ May 7th, 1908 July 13th, 1913 Christopher Clarke Hutchinson (Ken-sington) ....................................... Jan. 17th, 1884 Mar. 7th, 1914 Joseph William Thomas (Shortlands) ... Feb. 18th, 1875 Mar. 3rd, 1914 Francis Vacher (Birkenhead) ...............Mar. 16th, 1882 Feb. 26th, 1914 Messrs. A. P. L. Blaxter and A. Bicknell were formally admitted Fellows of the Chemical Society. The PRESIDENTannounced that Professor Arrhenius has accepted the invitation of the Coancil to deliver the Faraday Lecture this year. The Lecture, entitled ‘‘ Electrolytic Dissociation,” will be delivered in the Theatre of the Royal Institution (by the courtesy of the Managers) on Monday, May 25th, at 6 p.m., and further particulars will be announced later. Certificates were read for the first time in favour of Messrs.: Charles Frank Armstrong, Marhourah Sugar Works, Marhourah, B. & N.W. Railway, Saram, Behar, India. 78 Frederick Stanley Baxter, 119, Albert Street, Regent’s Park, N.W.Robert Ode11 Bishop, 1, Augustine Road, West Kensington, W. Hugh Miller Galt, B.Sc., M.B., Elm Croft, Withdean, Brighton. Trevor Edward Hodges, 43, Stapleton Hall Road, Stroud Green, N. William Whalley Myddleton, M.Sc., 6, Fairfield Road, Latchford Without, Warrington. A Certificate has been authorised by the Council for presentation to ballot under Bye-Law I (3) in favour of Mr.: Birendranath Maitra, 10, Kalighat Road, Bhowanipur, Calcutta, India. Of the following papers, those marked * were read: *77. “The ignition of some gaseous mixtures by the electric discharge.” By Hubert Frank Coward, Charles Cooper, and Julius Jacobs. The pressure of an explosive gaseous mixture may be reduced until ignition becomes impossible with the particular igniting arrangement in use.Such limiting pressures vary considerably with the strength of the igniting electric discharge (see Coward, Cooper and Warburton, T., 1912, 101, 2278, on the ignition of electrolytic gas), but comparable results for various mixtures are obtainable by preserving a constant igniting arrangement of induc- tion coil, cells, spark-gap, etc. The ignition of an explosive mixture the composition of which does not approach too near to the dilution- limit of inflammability proves to be determined chiefly by (1) the energy effect of the discharge itself, a function of the composition and pressure of the mixture; (2) the thermal conductivity of the mixture; and probably (3) an activation of the oxygen. The ignition of such a mixture is therefore a question of strength of spark and maintained concentration of its energy until the end of the preflame period, rather than of the thermal effect of com-bustion in the path of the spark.Once a true flame is initiated in a homogeneous explosive mixture, its propagation is assured, except in very narrow vessels. These considerations serve to explain some curious experimental results, of which the following may be quoted: A series of hydrogen-oxygen mixtures showed a rapidly falling ignition-pressure with increase in oxygen-content, until with 60 to 85 per cent. of oxygen the ignition-pressure became almost constant. In one apparatus, electrolytic gas at 80 mm. pressure could be inflamed after the addition of (a) 23 mm.of electrolytic gas itself, OT (b) 8 mm. of oxygen or more up to at least 720 mm., or (c) 90 mm. of hydrogen or more up to 210 mm. Similarly, electrolytic gas much below its ignition-pressure has been ignited after the addition of suitable amounts of nitrogen, carbon dioxide, and even argon. The cyanogen-oxygen, methane-oxygen, and ethylene-oxygen series of mixtures hzive been examined ; also the carbon-monoxide- oxygen series, alone and with various diluents. The carbon mon- oxide experiments provided the chief evidence respecting the activation of oxygen in the discharge. “78. ‘‘ Hydrazoximes of methyl- and phenyl-glyoxals.” By Biman Bihari Dey. The hydrazoximes of methylglyoxal, phenylglyoxal, and iso-nitrosomethylglyoxal, and their benzylidene, benzoyl and acetyl derivatives, as well as their corresponding azines, have been pre- pared.The semicarbazoiies and phenylcarbamylhydrazones of isonitroso-acetone, -acetophenone, etc., were also described. *79. The action of chromic chloride on the Grignard reagent.” By George Macdonald Bennett and Eustace Ebanezer Turner. It has been shown that when anhydrous chromic chloride is brought into contact with an ethereal solution of magnesium phenyl bromide, chromous chloride and diphenyl are produced in the quantities required by the equation 2CrC1, + 2C6H5*hlgBr 2CrC1, + C,H,*C,H, + MgBr, + MgCl,.=I No organo-metallic derivatives of chromium could be isolated. Besides diphenyl, very satisfactory yields of dibenzyl, 4 : 4‘-dimethyldiphenyl, and ad-dinaphthyl have been obtained by similar reactions.A reaction of the same kind was obtained using magnesium isoamyl iodide, but the yield of di-isoamyl was much less satisfactory, “80. “The influence of solvents on molecular weights. Part I. Salts.” By William Ernest Stephen Turner and Cornelius Theodore Pollard. Before any valid interpretation can be drawn of the results of molecular-weight measurements in solution, it is essential that the influence of the medium should be understood. This influence may be physical or chemical, and it is obvious that if the effect of so the solvent can be expressed by some physical rule, the interpreta- tion of results is much simplified.From an examination of existing data, the view had been ex-pressed (Turner, T., 1911, 99, 880) that the main factor influencing the value of the molecular weights of salts in solution is the dielectric character oE the solvent, and in order to test how far this view was valid, a systematic review of the subject was under- taken, experiments being made, for the purpose, on chlorides, bromides, iodides, and a nitrate of organic ammonium bases, dis- solved in fourteen solvents. To the new data obtained were added those previously obtained by one of the authors (Turner, Zoc. cit., and T., 1912, 101, 1923) and by other workers, bringing up the total to twenty-three solvents. The following conclusions were drawn : (1) The molecular weight of an electrolyte is, in a general way, a function of the dielectric character of the solvent, and the state- ment (Turner, Zoc.cit.) that electrolytic dissociation and molecular association are complementary phenomena, the former appearing in solvents of high, the latter in those of low, dielectric constant, is amply confirmed. pToluidine, of low dielectric constant, is exceptional, but the low results found in this solvent with most of the substances dis- solved may be due to combination. Nitrobenzene, in which certain organic substances are strongly associated, falls into line as a solvent for iodides and nitrates, producing apparent dissociation in accord- ance with its high dielectric constant. (2) Whilst no sharp line can be drawn, association of a salt occurs, in moderately dilute solutions, when the dielectric constant of the solvent falls below 18, but the extent of association depends both on the solvent and the solute.(3) For solvents of low dielectric constant, the degree of associa-tion is not strictly parallel to the dielectric constant. (4) As a general rule, the degree of association of similarly con- stituted salts falls in the order iodide>bromide>chloride, both in associating and dissociating solvents, thereby affording further evidence of the complementary character of association and dis- sociat ion. Chlorides, in some cases, behave exceptionally. (5) Rise of temperature has a marked influence in decreasing the degree of association of salts.(6) The common view that associated substances dissolved in associated solvents become thereby dissociated is disproved in the case of salts. Such simplification only occurs when the associated solvent possesses also a high dielectric constant. 81 81. “Deliquescence. Part I. The deliquescence of salts of ammonium bases.” By Cyril James Peddle. Little or no previous systematic study of deliquescence appears to have been made, descriptions of the deliquescence of substances being either the result of visual tests or of exposing a known weight of material on a watch-glass or other vessel. Both methods are crude, and have been proved by experience to be deceptive. The chief factors influencing deliquescence are the temperature and humidity of the atmosphere, the area and depth of the sub-stance used, and the size of the particles of the exposed material.In order to obtain accurate values, all these factors must be allowed for, especial care being taken to ensure the air being constantly saturated with moisture. The amount of water absorbed by 1 gram of substance is termed the deliquescence of that substance, and results have been obtained accordingly. In addition, the number of gram-molecules of water absorbed by 1 gram-molecule of salt was calculated, this value being termed the molecular deliquescence. Some evidence of the rate of absorption was obtained from the ratio molecular deliquescence time of exposure Amongst homologous compounds, additive properties are absent, the phenomenon of deliquescence appeariny to be only constitutive.Solubility is also related to deliquescence, although the relation is a complicated one, being most marked in the case of chlorides. In general, the order of deliquescence in a series falls with in- crease in molecular weight, and in the case of corresponding haloid salts the chlbride is most deliquescent and the iodide least. The introduction of aromatic radicles brings about a large decrease in deliquescence, whilst salts containing only aromatic radicles are non-deliquescent. Many of the salts examined had a deliquescence comparable with that of common inorganic drying agents. 82. ‘‘ Some derivatives of as-dipropyl- and diamyl-oxamic acids.” By Harford Montgomery Atkinson.Dipropylamine and diamylamine easily react with ethyl oxalate, forming the esters of dipropyl-and diamyl-oxamic acids. Th.e following derivatives were described : Ethyl dipropyloxamate, CO,Et.CO*N(C,H,),, b. p. 143O/10 mm., 82 which, by the action of ammonia, gives as-dipropyloxamide, NH,*CO*CO*N(C3H7),,m. p. 96-9‘iO. as-Dipro~loxamo~zitrile,CN*CO*N(C3H7),, b. p. 120°/ 14 mm., which, when treated with hydrogen sulphide, yields as-dipropylthio- oxamide, NH,*CS*CO*N(C,H,),, m. p. 129-130°. Thiopiperidy1g2yoxylamide7 NH,*CS*CO*NC,H,,, crystals, m. p. 66-67O; thio-as-diethyloxamide, NH,*CS-CO*NEh, m. p. 126-127O ;thio-as-dimethyloxamide, m. p. 120-121O. Dipropyloxami~ acid, CO,H*CO*N(C,H,),, m.p. 73-74O, and its chZoride, COCl*CO*N(C,H,),, b. p. 112-116O/ 14 mm., which, with dipropylamine, gives tetrapropyloxamide, [CO*N(C,H,),],, m. p. 38--39O, and by the action of heat furnishes dz‘propylcarbamyl chloride, COCl*N(C,H,),, b. p. 118-120°/28 mm. ; piperkdine-1-carboxyZdilrropyla.mide, C,H,,N*CO*N(C3H7)2,b. p. 173O/ 10 mm. ; dipropyldiam ylcarbamide, N( C,H,),-CO *N( C,H,,),, b. p. 185O/ 12 mm. ;dipropplformamide, HCO*N(C,H,),, b. p. 102O/ 17 mm. ; ethyl diamyloxamate, CO,Et*CO*N(C,H,,),, b. p. 166--167O/ 10 mm. ; as-diarnyloxamide, NH,*CO-CO*N(C,H,l)D m. p. 182O ; diamylformamide, HCO-N(C,H,,),, b. p. 141-145O/ 18 mm. ; dianzylcarbamyl chloride, COCl*N(C,H,,),, b. p. 147--149O/ 14 mm. ; and ;Dhei~?/ZdiamyZcarbanzide,CGH,*NH*CO*N(C,H,,)2,m.p. 204. 83. ‘‘ The system silver-silver sulphide.” By Crellyn Colgrave Bissett. The above system has been investigated both by thermal and by microscopic methods. From the results of the investigation it was concluded that: (1) Silver and silver sulphide are only partially miscible in the liquid state. All alloys having an average composi- tion between approximately 17 and 94 per cent. of sulphide separate into two layers on being melted, and freeze at a constant tempera- ture of 903O. (2) Silver and silver sulphide form a eutectic containing approxi- mately 99 per cent. of sulphide. The freezing point of the eutectic was found to be 804O. (3) Silver and silver sulphide probably form solid solutions to some extent. 84.(‘The action of sulphur on amines. Part 11. Aniline.” By Herbert Henry Hodgson and Alfred Gilbert Dix. The authors have studied the action of sulphur on aniline in the presence of its hydrochloride or hydrochloric acid. It is found that trithioaniline is produced in quantitative yield, and the 83 previous discrepancies of other authors are to be explained by secondary actions between the trithioaniline, aniline, and sulphur. Although the free base itself could only be obtained in a resinous condition, the sulphate, hydrochloride, and oxalate have been pre- pared, together with the Benzoyl derivative. The wool dyestuffs obtained by diazotising the sulphate and combining with the usual components were found to be exceptionally fast to ordinary agents, and particularly so to milling.Iodine had the same influence as hydrochloric acid on the course of the reaction. On reduction the trithioaniline gives a dithioaniline, but the poor yield has led to an investigation of the mechanism of the reduction. Anomalies noticed when trithioaniline is condensed with m-nitrobenzaldehyde, and also when diazotised and coupled with &naphthol, seem to indicate that one of the sulphur atoms is only loosely combined. 85. “Investjgations on the dependence of rotatory power on chemical constitution. Part VI. The optical rotatory powers of methyl-tert.-butyl-, methylbenzyl-, methylphenylethgl- and methyl-a-naphthylcarbinols.”* By Robert Howson Pickard and Joseph Xenyon. The preparation of the optically active forms of these carbinols was described.1-illethyl-a-trnplrthylccirbi,iol (m. p. 47O), when supercooled at the temperature of the laboratory, exhibits anomalous rotatory dis-persion. 86. Salts which contain two solvents of crystallisation.” By James Ernest Xarsh. When the salt KHgI,,H,O is added to methyl carbonate, the clear, yellow crystals crumble to a nearly colourless powder. On warming, all passes into solution, and on cooling the salt KHgI3,H20,3Me,CO, crystallises out. The ammonium salt NH,Hg13,H,0,2Me2C0, crystallises well. The rubidium salt RbHgI,,H20,2Me,C0, is also crystalline, but nearly insoluble in the solvent. A sodium silver iodide with water and methyl carbonate of crystallisation has also been obtained.* This paper corresponds in ilart with ti e preiimiuary note Ilnld:slied in P., 1912, 28, 42. 84 87. L6 Menthyl esters of chloroacetic, menthoxyacetic, a.nd methyl- anilinoacetic acids.” By Percy Faruday Frankland and Fred Barrow. These compounds have been prepared by the authors in con-nexion with their search for an optically active acid chloride which would be easily accessible and not liable to racemisation. Owing to the great stability of the ester-grouping in menthyl chloroacetate, the authors find the latter to be a very convenient optically active compound from which to obtain derivatives by the interaction of the halogen-atom and other groups. Thus menthyl menthoxyacetate and menthyl methylanilinoacetate were obtained by the action of sodium menthoxide and methylaniline, respectively, on menthyl chloroacetate.(Compare also the use made by P. F. Frankland and H. H. O’Sullivan of menthyl chloroacetate and menthoxyacetic acid, T., 1911, 99, 2325; 1912, 101, 287.) 88. “The action of thionyl chloride on lactic acid and on ethyl lactate.” By Percy Faraday Frankland and William Edward Garner. The authors direct attention to the appsrent regularity in the action of thionyl chloride and silver oxide on optically active hydroxy-compounds. Four possibilities present themselves : 8OC12 &zOI. I-OH +I-C1 -+ d OH Inversion. POClp AgzO11. I-OH -+ d-C1 -+ d-OH 1 SOCl~-> I-OHIJI. AgzOI-C1 -+ I-OH No inversion.Ag2OIV. I-OH BOCl2 d-C1 -+ 1-OH Only six hydroxy-compounds have hitherto been inveetigated in their relation to this pair of reagents, and in every case an inversion is effected, the transformation taking place according to scheme I in the case of phenylglycollic acid (mandelic acid), a-hydroxy-a- phenylpropionic acid (atrolactinic acid), B-hydroxy-8-phenyl-propionic acid, and phenylmethylcarbinol, and according to scheme I1 in the case of malic acid and a-hydroxy-B-phenylpropionicacid, although for the latter compound the data are incomplete and somewhat obscure.Hitherto no transformations according to schemes I11 and IV have been observed. The authors have completed the data bearing on lactic acid, for which the following transformations are already known : 85 l’ClC,I-lactic acid 4 tl-chloro(hiwm I)l)ropimic: :wit1 (lzvorotitoiy salts PBrs aiid e\ters, cominonlyknown as saiculactic $? kzacid.) I-lactit: acid d-lnci ie aci(l (!zvorotatory ((luxtrot otatory salts and esters.) sattsttiidestets ) By the action of thionyl chloride the authors have found that : SOCl2d-lactic acid -----+I-chloropropionicacid (dextrorotatory salts anti esters.) SOCl2ethyl d-lactate ---+ ethyl I-chloropropionatd (dcxtrorotatory.) The transformations of lactic acid are, therefore, similar to those of malic acid, and take place according to scheme I1 above. A number of intermediate compounds were encountered in the action of thionyl chloride on the lactic acid and its ester. Thus, from the feebly active d-lactic acid (dextrorotatory salts and ester) employed there were obtained chlorosulphinyl-lactic chloride (very strong dextrorotation), chloropropionyl chloride (feeble dextro-rotation), chloropropionic acid (lzevorotation), ethyl chloro-propionate (lzevorotation), chloropropionyl-lactic chloride (dextro-rotation), chloropropionyl-lactic acid (dextrorotation), ethyl chloro- sulphinyl-lactate (very strong dextrorotation), and ethyl thionyl- lactate (very strong dextrorotation).89. 6L Syntheses with phenol derivatives containing a mobile nitro- group. Part VI. Substituted alkyl- and aryl-phenylamines ; colour in relation to tautomerism.” By Raphael Meldola and William Francis Hollely. The authors have studied the action of primary and secondary amines on the 2 : 3 : 5-trinitroanisidine of Reverdin, and have obtained a series of alkyl- and aryl-phenylamine derivatives, all of which result from the replacement of the 2-nitro-group by the amine residue. Tertiary amines have no action.The compound obtained by the action of aniline, 3 : 5-dinitro-2-phenylaminoaceto-p anisidide, exists in two differently coloured tautomeric forms which are interconvertible, and to which the authors assign the formulz: 0-CH, O-CH, O*CH, /\R’H*c,~T, /\:NH*C‘,H, /\N H.C,H, ~ NO)\/ iNOz f-I Po 1 1 li NR*CO-CH, NH*CO*OH, g*CO-CH, (1.) (11.) (111.) 86 One of these modifications is ochreous and the other red, hhe latter being regarded as an inner salt (11) and the former as having the normal constitution (I).Both forms dissolve in alkali with a yellow colour; the authors give reasons for believing that in alkaline solution configuration I11 exists, this form reverting at once to I when precipitated by acids. 90. ‘;A formula by means of which the molecular volume at the boiling point may be calculated.” By Gervaise Le Bas. In an extended study of molecular volumes, it was found neces-sary to calculate some of the values at the boiling point, and the following formula has been found suitable for this purpose: The only data necessary are the density at Oo and the boiling point. The value of c is given in the following table, the data being those of Thorpe: Table of Balues (Inorganic Compounds). 111.1’.KV Compound. B. p. do. d, ,’ c. calc. obs. ”: error. S205C12 ......... 139.6 1.85846 1.60610 0.460 135.5 135.5 fO.0 SO)2I*OH ......... 155.3 1.78474 1.54874 0.420 75.5 75.05 + 0.7 SO,C1, ............... 70.0 1.70514 1.56025 0.462 86.3 86.3 fO.0 AsCI, ............... 130.2 2.20500 1.91813 0.447 95.1 94.37 t 0.76 Ad?, ............... 60.4 2.6659 2.4497 0.4’30 53.6 53.84 -0.44 VOCI, ............ 127.2 1.86634 1.63073 0.452 106.5 106.2 +0.3 POBSI, ............ 137.6 2.12065 1-83844 0.458 107.5 107.4 t 0.1 PSCI, ............... 125-1 1.66820 1-45599 0.455 116.3 116.1 +0.2 POCl, ............ 107.2 1.71163 1.50967 0-474 101.0 101.4 -0.4 TiCl, .................. 136.4 1-76041 1.52223 0.460 124-5 124.5 *O.O SiC1, ..................57.6 1.52408 1.40294 0.500 120.2 120.8 -0.5 N-0, .................. 21.6 1.49030 1.43958 0.473 64.0 63.9 20.0 Mean valuo, 0.163 It is found that by means of the above formula the volumes of compounds of a similar order of complexity can be calculated to within 1 per cent. Exalnple.--GeC1,, d,, 1,887 (\Vrnklei), b. p. 86*Oo, 25s = 0.771,3’ d_l= 0.36 x 0.229 = 1-1053, d,,1, = -.’“ =1.708. M.W. = 2 13.8 ; M.V. dt 1.105 124-6. Observed, C 14.8, Si 32, Ge [36*2], Sn 42.3, Ti [35*7]. The formula can be used indifferently for inorganic and organic compounds, but the value of c in the latter varies somewhat as the compounds vary greatly in complexity and the chains lengthen. The value of c for organic cyclic compounds without side-chains is similar to the above.87 Cyclic Compoundg. 4. 0,'M. p. 0 dr M.V. M.V. /O Compounde. or 0". B. p. or m. p. 7'=R.p. C. celc. obs. errorr C,H, (Benzene) ... 6.0" 80" 0.8940 0.8133 0.470 96.7 96-0 -0.08 C4H,S (Thiophen) 0.0 84 1.0884 0.9874 0.434 85.5 85-0 + 0.6 C,,,H,(Naphthaleno) 79.2 217 0.9777 0.8674 0.456 147.3 147.2 2 0.0 C,,H,, (Hexahydro-naphthalene) ... 0.0 200 0.9419 0.7809 0.487 170.0 171.2 -0.7 C,,H,, (Phen-anthrene) ... . .. 100.5 340 1.0630 0.9073 0.440 197.8 195.2 + 1.3 C,H,N (Pyridine)... 0.0 115 1.0033 0.8826 0-462 89.3 89.3 k0.0 C,HiN (Quinoline) 0.0 234 1.1081 04211 0.439 141.1 140.0 + 0.8 Mean value, 0.460. The results of calculation show very fair agreement with observa- tion, and thus giving a fairly trustworthy method for the calcu- lation of unknown values.Example.-Hydrindene, C9Hlo: d, 0.957, b. p. 176O, c =46, M.V. 144.0. znV,=(4 x 9+ 10)3*7=46x 3.7 =170-2, A-26.2 for ring. Contraction for 1 six-membered ring + 1 five-membered ring = -15-11.5= -26.5. Acenaphthene, C,,H,.-The value of c for phenanthrene is 0.440. For acenaphthene, dIo31.030, m. p. 103O, b. p. 277O. V, 166.6, 2tzV, 207.2, A = -40.6. Contraction for 2 six-membered rings + 1 five-membered ring= -30.0 -11.5 = -41.5. The only difficulty is met with in open-chain organic compounds. For compounds like chloroform, carbon tetrachloride, and trichloromethane, the value of G mentioned above (0.460) inay suffice. c, in general, increases by 0.024 for every addition of CH, in open-chain compounds, thus : C,HI20-476, C,H,, 0.500, C,H,, 0.532, CBH,, 0.554: h 0.024 0.0.;2 0.022 When considering an unknown value for a certain compound, it is usually possible to find an analogous compound from which c may be calculated, for example, cymene, C10H14,for the terpenes (menthane), CIOHIG,methyl succinate for methyl maleate or fumarate, propionitrile for ethyl carbylamine, and ethyl nitroethane for ethyl nitrite.91. '' A study of the constitution of nitrogen and phosphorus oxides and some of their derivatives by means of molecular volumes." By Gervais Le Bas. A study has been made of the above compounds by means of a new theory of molecular volumes, based on the original one of Kopp, or at least from his point of view.It recognises an additive 88 principle, which is shown by the use of-a system of atomic volumes, as follows : C =14.8, H =3.7, 0=7*4-11*0, according to circum-stances, S=22.0 and 25.6, N=15*6, P=27.0. A number of con-stitutive features are also recognised. As a consequence, the con-stitutions of some of the above compounds are considered to be different from those usually accepted. INFORMAL MEETING. The Rooms of the Society will be open for an informal meeting of the Fellows on Thursday, April 30th, from 8 to 10 p.m. Smoking will be permitted, and light refreshments will be provided. Fellows are invited to exhibit apparatus and specimens of interest, and to show experiments; those wishing to do so are requested to communicate with the Honorary Secretaries not later than the Monday previous to the meeting.The next Ordinary Scientific Meeting will be held on Thursday, April 2nd, 1914, at 8.30 p.m., when the following papers will be communicated : “The system : ethyl ether-water-potassium iodid+mercuric iodide. Part 111. Solutions unsaturated with respect to solid phases in the four-component system.” By A. C. Dunningham. “The velocity of saponification of acyl derivatives of phenols.. Part I. The velocity of saponification of phenyl benzoate.” By H. McCombie and H. A. Scarborough. “A general method for the preparation of glyoxals and their acetals.” By H. D. Dakin and H. W. Dudley. (‘The action of sulphuric acid on para-formaldehyde.’’ BY J. G. M. Dunlop.‘‘ The constitution of the glycerylphosphates. The synthesis of a-and 8-glycerylphosphates.” By H. King and F. L. Pyman. “ The destructive distillation of soil.” (Preliminary note.) By E. J. Holmyard. “Addition products of nitro-compounds and amines.” (Pre-liminary note.) By H. Housley. “Dibenzoylglucoxylose, C,,~~80,,(CO*C,H,),,H20. A natural benzoyl derivative of a new disaccharide.” By F. B. Power and A. H. Salway. B. CLAY AND SONS, LTI)., BBUNSWICK ST., STAYTORD ST., S.P., AND BUNGAY. SUFFOLH.
ISSN:0369-8718
DOI:10.1039/PL9143000077
出版商:RSC
年代:1914
数据来源: RSC
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