Societies and Academies
LONDON.Royal Society, June 3.-A. E. H. Tutton: The alkali perchlorates, and a new principle concerning the measurement of space-lattice cells. The crystallo-graphic character and optical properties of the perchlorates of potassium, rubidium, cassium and ammonium have been investigated. The crystal a...
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description | LONDON.Royal Society, June 3.-A. E. H. Tutton: The alkali perchlorates, and a new principle concerning the measurement of space-lattice cells. The crystallo-graphic character and optical properties of the perchlorates of potassium, rubidium, cassium and ammonium have been investigated. The crystal angles and goniometrical constants are progressive in the order of the atomic numbers of the alkali metals, the average change for the replacement of potassium by caesium being double as much as occurs when rubidium replaces potassium. Optical properties and the sizes, both relative and absolute, of the unit-cells of the space-lattice also show the progression with atomic number of alkali metal very clearly. The absolute dimensions of the cells have been found by a new principle. In an isomorphous series based on similar structure, if one member crystallises well and can be thoroughly investigated by X-rays and the cell dimensions determined in Angstrom units, the cell dimensions of all the other members can be calculated. The case of the perchlorates and barytes group affords the first, and an excellent, example. The structure and cell-dimensions of barytes are known with certitude. The cell-dimensions of the minute crystals of the isomorphous perchlorates of the alkalies have been calculated from their topic axial ratios and the barytes data. In one case a critical test has been possible, that of potassium perchlorate, X-ray analysis of which has been just adequate to afford the cell-dimensions; and these have proved to be practically identical with those calculated on the new principle. T. E. Stanton: On the flow of gases at high speeds. An experimental investigation was undertaken on the nature of the flow of a gas through orifices and nozzles at speeds in the neighbourhood of and exceeding the velocity of sound. The prediction of Osborne Reynolds that a minimum section of the jet would exist at that point in it at which the theoretical critical pressure p0 obtains has been fully verified. The magnitude of the minimum section and its position relative to the throat of the orifice or nozzle depend on the value of the receiver pressure. The conditions for dynamical similarity in jets from geometrically similar nozzles and orifices at speeds above the velocity of sound depend on the viscosity of the gas and not solely on the ratio of the speed to that of sound. A reliable method of measuring the velocity at a point in a jet moving at speeds above the velocity of |
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fullrecord | <record><control><sourceid>nature</sourceid><recordid>TN_cdi_nature_primary_117841b0</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>117841b0</sourcerecordid><originalsourceid>FETCH-nature_primary_117841b03</originalsourceid><addsrcrecordid>eNpjYBAwNNAzNDC20Dc0NLcwMUwyYGLgNDQxN9M1MbMwZ2HgNDAwstA1sDA242DgKi7OMjAwMDU0N-FkEA_OT85MLclMLVZIzEtRcExOTEnNBfJ4GFjTEnOKU3mhNDeDnJtriLOHbl5iSWlRanxBUWZuYlFlPMw6Y4IKADCZKuY</addsrcrecordid><sourcetype>Publisher</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Societies and Academies</title><source>Nature Journals Online</source><source>SpringerLink Journals - AutoHoldings</source><description>LONDON.Royal Society, June 3.-A. E. H. Tutton: The alkali perchlorates, and a new principle concerning the measurement of space-lattice cells. The crystallo-graphic character and optical properties of the perchlorates of potassium, rubidium, cassium and ammonium have been investigated. The crystal angles and goniometrical constants are progressive in the order of the atomic numbers of the alkali metals, the average change for the replacement of potassium by caesium being double as much as occurs when rubidium replaces potassium. Optical properties and the sizes, both relative and absolute, of the unit-cells of the space-lattice also show the progression with atomic number of alkali metal very clearly. The absolute dimensions of the cells have been found by a new principle. In an isomorphous series based on similar structure, if one member crystallises well and can be thoroughly investigated by X-rays and the cell dimensions determined in Angstrom units, the cell dimensions of all the other members can be calculated. The case of the perchlorates and barytes group affords the first, and an excellent, example. The structure and cell-dimensions of barytes are known with certitude. The cell-dimensions of the minute crystals of the isomorphous perchlorates of the alkalies have been calculated from their topic axial ratios and the barytes data. In one case a critical test has been possible, that of potassium perchlorate, X-ray analysis of which has been just adequate to afford the cell-dimensions; and these have proved to be practically identical with those calculated on the new principle. T. E. Stanton: On the flow of gases at high speeds. An experimental investigation was undertaken on the nature of the flow of a gas through orifices and nozzles at speeds in the neighbourhood of and exceeding the velocity of sound. The prediction of Osborne Reynolds that a minimum section of the jet would exist at that point in it at which the theoretical critical pressure p0 obtains has been fully verified. The magnitude of the minimum section and its position relative to the throat of the orifice or nozzle depend on the value of the receiver pressure. The conditions for dynamical similarity in jets from geometrically similar nozzles and orifices at speeds above the velocity of sound depend on the viscosity of the gas and not solely on the ratio of the speed to that of sound. A reliable method of measuring the velocity at a point in a jet moving at speeds above the velocity of sound has been developed from the relation, determined by the late Lord Rayleigh, between the pressure in front of a fixed obstacle in the jet and the pressure of the jet. The flow throughout the jet except in the neighbourhood of the walls of the nozzle is sensibly adiabatic. G. I. Taylor and W. S. Farran: The distortion of crystals of aluminium under compression (Pt. I.). A disc cut from a crystal of aluminium can be compressed in such a way that the distortion is uniform throughout the material. In these circumstances the distortion is of the same nature as that which occurs when a uniform single-crystal bar of aluminium is stretched, i.e. it is due to slipping parallel to a certain crystal plane and in a certain crystallographic direction. The sign of the component of force normal to the plane of slip appears to make no difference to the nature of the slip. E. V. Appleton, R. A. Watson Watt and J. F. Herd: On the nature of atmospherics (11.). The method now involves the use of a cathode ray oscillograph with a. time-base, which is both uniform in scale and unambiguous as to time-sense. Statistical analyses of approximately 8000 individual drawings of atmospheric wave forms show that sensibly aperiodic discharges were three times as numerous as were quasiperiodics; predominantly positive discharges were one and a half times as numerous as were negatives. The mean quasiperiodic had a peak field strength of 0-159 Vjm, the aperiodic 0-075 V/m. The negative discharges of both types were stronger by 20 per cent, to 30 per cent, than the positives. The mean quasiperiodic had a duration 3125 /j.s, 30 per cent, greater than that of the mean aperiodic. The most frequently occurring form of atmospheric was a symmetrical rounded positive aperiodic, forming 14 per cent, of the whole distribution. The most frequent quasiperiodic, forming 7j per cent, of the distribution, had a peaked positive half-cycle followed by a single rounded negative half-cycle. The experiments on atmospheric waveforms have been supplemented by observations on the net changes of the earth's electric field, resulting from lightning discharges. These observations at Aldershot, Cambridge, Helwan and Khartoum show that, at distances greater than 50 km. from the discharge channel, negative changes of field are at least 1-6 times as frequent as are positive changes. Since the field-changes at such distances may be taken as indicative of the sign of the thundercloud moment destroyed by the flash, it is concluded that lightning flashes resulting in the destruction of positive electric moments are at least 1 -6 times as frequent as are those of opposite character. C. H. Lees: On the determination of the specific heats of gases at constant pressure, and at constant volume, and their ratio by adiabatic expansion. The specific heats of gases or the ratio of them cannot be determined to an accuracy of 1 part in 2000 or in 15,000 respectively unless either the temperature is determined to less than 0-01° C. or the adiabatic fall of temperature is increased above the 6° or 7° C. now used. If the latter course is adopted, the effect of the change of specific heat with temperature may be rendered negligible by taking the result calculated from the observations holding at the geometric mean of the initial and final temperatures of the expansion. Neglect of the deviation of the gas used from the perfect gas equation pv = R T introduces an error of i part in 2000 in the value of the specific heat, calculated from observations at atmospheric temperatures with the usual expansion, if the deviation is only about one-fifteenth of that of carbon dioxide. The choice of characteristic equation for the gas introduces differences of the order i part in 400 in the value of the ratio of the specific heats calculated. T. G. Room: A general configuration in space of any number of dimensions analogous to the double-six of lines in ordinary space. In space of three dimensions, it is possible to have two sixes of lines, of which every line of one six meets all but one line of the other six. Thirty-six such double sixes can be chosen from the lines existing on a general cubic surface. In space of n dimensions it is possible to have a set of %n(n +1) lines, and a set of the same number of (n - 2) folds, corresponding to the lines in a like manner, as regards their intersections. It is now shown that in space of n dimensions it is possible, for any value of r less than n, to have a number of r-folds, and an equal number of (n - r-i) folds, with the like property of intersection of corresponding elements. In the case of the double six of lines in ordinary space, there exists a quadric in regard to which the lines of one six are the polars of the lines of the other six. It is now shown that, except for the case when one set of elements consists of points, there exists no such reciprocating quadric in space of more than three dimensions. The existence of such a double set of corresponding elements is, however, not limited to the case when these are of dual character, such as a point and an (n - i)-fold, a line and an (n - 2)-fold, and so on. In this paper a much more general theorem, establishing a double figure of elements with a like property of intersection, is obtained. - C. N. Hinshelwood and W. K. Hutchison: A comparison between unimolecular and bimolecular gaseous reactions. The thermal decomposition of gaseous acetal-dehyde. The thermal decomposition of acetaldehyde in the gaseous state has been investigated over the temperature range 430°-592° C. The reaction is bimolecular, and under the conditions of the experiments, practically entirely homogeneous. The rate of reaction can be calculated from the equation</description><identifier>ISSN: 0028-0836</identifier><identifier>EISSN: 1476-4687</identifier><identifier>DOI: 10.1038/117841b0</identifier><language>eng</language><ispartof>Nature (London), 1926-06, Vol.117 (2954), p.841-844</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,2726,27923,27924</link.rule.ids></links><search><title>Societies and Academies</title><title>Nature (London)</title><description>LONDON.Royal Society, June 3.-A. E. H. Tutton: The alkali perchlorates, and a new principle concerning the measurement of space-lattice cells. The crystallo-graphic character and optical properties of the perchlorates of potassium, rubidium, cassium and ammonium have been investigated. The crystal angles and goniometrical constants are progressive in the order of the atomic numbers of the alkali metals, the average change for the replacement of potassium by caesium being double as much as occurs when rubidium replaces potassium. Optical properties and the sizes, both relative and absolute, of the unit-cells of the space-lattice also show the progression with atomic number of alkali metal very clearly. The absolute dimensions of the cells have been found by a new principle. In an isomorphous series based on similar structure, if one member crystallises well and can be thoroughly investigated by X-rays and the cell dimensions determined in Angstrom units, the cell dimensions of all the other members can be calculated. The case of the perchlorates and barytes group affords the first, and an excellent, example. The structure and cell-dimensions of barytes are known with certitude. The cell-dimensions of the minute crystals of the isomorphous perchlorates of the alkalies have been calculated from their topic axial ratios and the barytes data. In one case a critical test has been possible, that of potassium perchlorate, X-ray analysis of which has been just adequate to afford the cell-dimensions; and these have proved to be practically identical with those calculated on the new principle. T. E. Stanton: On the flow of gases at high speeds. An experimental investigation was undertaken on the nature of the flow of a gas through orifices and nozzles at speeds in the neighbourhood of and exceeding the velocity of sound. The prediction of Osborne Reynolds that a minimum section of the jet would exist at that point in it at which the theoretical critical pressure p0 obtains has been fully verified. The magnitude of the minimum section and its position relative to the throat of the orifice or nozzle depend on the value of the receiver pressure. The conditions for dynamical similarity in jets from geometrically similar nozzles and orifices at speeds above the velocity of sound depend on the viscosity of the gas and not solely on the ratio of the speed to that of sound. A reliable method of measuring the velocity at a point in a jet moving at speeds above the velocity of sound has been developed from the relation, determined by the late Lord Rayleigh, between the pressure in front of a fixed obstacle in the jet and the pressure of the jet. The flow throughout the jet except in the neighbourhood of the walls of the nozzle is sensibly adiabatic. G. I. Taylor and W. S. Farran: The distortion of crystals of aluminium under compression (Pt. I.). A disc cut from a crystal of aluminium can be compressed in such a way that the distortion is uniform throughout the material. In these circumstances the distortion is of the same nature as that which occurs when a uniform single-crystal bar of aluminium is stretched, i.e. it is due to slipping parallel to a certain crystal plane and in a certain crystallographic direction. The sign of the component of force normal to the plane of slip appears to make no difference to the nature of the slip. E. V. Appleton, R. A. Watson Watt and J. F. Herd: On the nature of atmospherics (11.). The method now involves the use of a cathode ray oscillograph with a. time-base, which is both uniform in scale and unambiguous as to time-sense. Statistical analyses of approximately 8000 individual drawings of atmospheric wave forms show that sensibly aperiodic discharges were three times as numerous as were quasiperiodics; predominantly positive discharges were one and a half times as numerous as were negatives. The mean quasiperiodic had a peak field strength of 0-159 Vjm, the aperiodic 0-075 V/m. The negative discharges of both types were stronger by 20 per cent, to 30 per cent, than the positives. The mean quasiperiodic had a duration 3125 /j.s, 30 per cent, greater than that of the mean aperiodic. The most frequently occurring form of atmospheric was a symmetrical rounded positive aperiodic, forming 14 per cent, of the whole distribution. The most frequent quasiperiodic, forming 7j per cent, of the distribution, had a peaked positive half-cycle followed by a single rounded negative half-cycle. The experiments on atmospheric waveforms have been supplemented by observations on the net changes of the earth's electric field, resulting from lightning discharges. These observations at Aldershot, Cambridge, Helwan and Khartoum show that, at distances greater than 50 km. from the discharge channel, negative changes of field are at least 1-6 times as frequent as are positive changes. Since the field-changes at such distances may be taken as indicative of the sign of the thundercloud moment destroyed by the flash, it is concluded that lightning flashes resulting in the destruction of positive electric moments are at least 1 -6 times as frequent as are those of opposite character. C. H. Lees: On the determination of the specific heats of gases at constant pressure, and at constant volume, and their ratio by adiabatic expansion. The specific heats of gases or the ratio of them cannot be determined to an accuracy of 1 part in 2000 or in 15,000 respectively unless either the temperature is determined to less than 0-01° C. or the adiabatic fall of temperature is increased above the 6° or 7° C. now used. If the latter course is adopted, the effect of the change of specific heat with temperature may be rendered negligible by taking the result calculated from the observations holding at the geometric mean of the initial and final temperatures of the expansion. Neglect of the deviation of the gas used from the perfect gas equation pv = R T introduces an error of i part in 2000 in the value of the specific heat, calculated from observations at atmospheric temperatures with the usual expansion, if the deviation is only about one-fifteenth of that of carbon dioxide. The choice of characteristic equation for the gas introduces differences of the order i part in 400 in the value of the ratio of the specific heats calculated. T. G. Room: A general configuration in space of any number of dimensions analogous to the double-six of lines in ordinary space. In space of three dimensions, it is possible to have two sixes of lines, of which every line of one six meets all but one line of the other six. Thirty-six such double sixes can be chosen from the lines existing on a general cubic surface. In space of n dimensions it is possible to have a set of %n(n +1) lines, and a set of the same number of (n - 2) folds, corresponding to the lines in a like manner, as regards their intersections. It is now shown that in space of n dimensions it is possible, for any value of r less than n, to have a number of r-folds, and an equal number of (n - r-i) folds, with the like property of intersection of corresponding elements. In the case of the double six of lines in ordinary space, there exists a quadric in regard to which the lines of one six are the polars of the lines of the other six. It is now shown that, except for the case when one set of elements consists of points, there exists no such reciprocating quadric in space of more than three dimensions. The existence of such a double set of corresponding elements is, however, not limited to the case when these are of dual character, such as a point and an (n - i)-fold, a line and an (n - 2)-fold, and so on. In this paper a much more general theorem, establishing a double figure of elements with a like property of intersection, is obtained. - C. N. Hinshelwood and W. K. Hutchison: A comparison between unimolecular and bimolecular gaseous reactions. The thermal decomposition of gaseous acetal-dehyde. The thermal decomposition of acetaldehyde in the gaseous state has been investigated over the temperature range 430°-592° C. The reaction is bimolecular, and under the conditions of the experiments, practically entirely homogeneous. The rate of reaction can be calculated from the equation</description><issn>0028-0836</issn><issn>1476-4687</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1926</creationdate><recordtype>article</recordtype><sourceid/><recordid>eNpjYBAwNNAzNDC20Dc0NLcwMUwyYGLgNDQxN9M1MbMwZ2HgNDAwstA1sDA242DgKi7OMjAwMDU0N-FkEA_OT85MLclMLVZIzEtRcExOTEnNBfJ4GFjTEnOKU3mhNDeDnJtriLOHbl5iSWlRanxBUWZuYlFlPMw6Y4IKADCZKuY</recordid><startdate>19260612</startdate><enddate>19260612</enddate><scope/></search><sort><creationdate>19260612</creationdate><title>Societies and Academies</title></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-nature_primary_117841b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1926</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><jtitle>Nature (London)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Societies and Academies</atitle><jtitle>Nature (London)</jtitle><date>1926-06-12</date><risdate>1926</risdate><volume>117</volume><issue>2954</issue><spage>841</spage><epage>844</epage><pages>841-844</pages><issn>0028-0836</issn><eissn>1476-4687</eissn><abstract>LONDON.Royal Society, June 3.-A. E. H. Tutton: The alkali perchlorates, and a new principle concerning the measurement of space-lattice cells. The crystallo-graphic character and optical properties of the perchlorates of potassium, rubidium, cassium and ammonium have been investigated. The crystal angles and goniometrical constants are progressive in the order of the atomic numbers of the alkali metals, the average change for the replacement of potassium by caesium being double as much as occurs when rubidium replaces potassium. Optical properties and the sizes, both relative and absolute, of the unit-cells of the space-lattice also show the progression with atomic number of alkali metal very clearly. The absolute dimensions of the cells have been found by a new principle. In an isomorphous series based on similar structure, if one member crystallises well and can be thoroughly investigated by X-rays and the cell dimensions determined in Angstrom units, the cell dimensions of all the other members can be calculated. The case of the perchlorates and barytes group affords the first, and an excellent, example. The structure and cell-dimensions of barytes are known with certitude. The cell-dimensions of the minute crystals of the isomorphous perchlorates of the alkalies have been calculated from their topic axial ratios and the barytes data. In one case a critical test has been possible, that of potassium perchlorate, X-ray analysis of which has been just adequate to afford the cell-dimensions; and these have proved to be practically identical with those calculated on the new principle. T. E. Stanton: On the flow of gases at high speeds. An experimental investigation was undertaken on the nature of the flow of a gas through orifices and nozzles at speeds in the neighbourhood of and exceeding the velocity of sound. The prediction of Osborne Reynolds that a minimum section of the jet would exist at that point in it at which the theoretical critical pressure p0 obtains has been fully verified. The magnitude of the minimum section and its position relative to the throat of the orifice or nozzle depend on the value of the receiver pressure. The conditions for dynamical similarity in jets from geometrically similar nozzles and orifices at speeds above the velocity of sound depend on the viscosity of the gas and not solely on the ratio of the speed to that of sound. A reliable method of measuring the velocity at a point in a jet moving at speeds above the velocity of sound has been developed from the relation, determined by the late Lord Rayleigh, between the pressure in front of a fixed obstacle in the jet and the pressure of the jet. The flow throughout the jet except in the neighbourhood of the walls of the nozzle is sensibly adiabatic. G. I. Taylor and W. S. Farran: The distortion of crystals of aluminium under compression (Pt. I.). A disc cut from a crystal of aluminium can be compressed in such a way that the distortion is uniform throughout the material. In these circumstances the distortion is of the same nature as that which occurs when a uniform single-crystal bar of aluminium is stretched, i.e. it is due to slipping parallel to a certain crystal plane and in a certain crystallographic direction. The sign of the component of force normal to the plane of slip appears to make no difference to the nature of the slip. E. V. Appleton, R. A. Watson Watt and J. F. Herd: On the nature of atmospherics (11.). The method now involves the use of a cathode ray oscillograph with a. time-base, which is both uniform in scale and unambiguous as to time-sense. Statistical analyses of approximately 8000 individual drawings of atmospheric wave forms show that sensibly aperiodic discharges were three times as numerous as were quasiperiodics; predominantly positive discharges were one and a half times as numerous as were negatives. The mean quasiperiodic had a peak field strength of 0-159 Vjm, the aperiodic 0-075 V/m. The negative discharges of both types were stronger by 20 per cent, to 30 per cent, than the positives. The mean quasiperiodic had a duration 3125 /j.s, 30 per cent, greater than that of the mean aperiodic. The most frequently occurring form of atmospheric was a symmetrical rounded positive aperiodic, forming 14 per cent, of the whole distribution. The most frequent quasiperiodic, forming 7j per cent, of the distribution, had a peaked positive half-cycle followed by a single rounded negative half-cycle. The experiments on atmospheric waveforms have been supplemented by observations on the net changes of the earth's electric field, resulting from lightning discharges. These observations at Aldershot, Cambridge, Helwan and Khartoum show that, at distances greater than 50 km. from the discharge channel, negative changes of field are at least 1-6 times as frequent as are positive changes. Since the field-changes at such distances may be taken as indicative of the sign of the thundercloud moment destroyed by the flash, it is concluded that lightning flashes resulting in the destruction of positive electric moments are at least 1 -6 times as frequent as are those of opposite character. C. H. Lees: On the determination of the specific heats of gases at constant pressure, and at constant volume, and their ratio by adiabatic expansion. The specific heats of gases or the ratio of them cannot be determined to an accuracy of 1 part in 2000 or in 15,000 respectively unless either the temperature is determined to less than 0-01° C. or the adiabatic fall of temperature is increased above the 6° or 7° C. now used. If the latter course is adopted, the effect of the change of specific heat with temperature may be rendered negligible by taking the result calculated from the observations holding at the geometric mean of the initial and final temperatures of the expansion. Neglect of the deviation of the gas used from the perfect gas equation pv = R T introduces an error of i part in 2000 in the value of the specific heat, calculated from observations at atmospheric temperatures with the usual expansion, if the deviation is only about one-fifteenth of that of carbon dioxide. The choice of characteristic equation for the gas introduces differences of the order i part in 400 in the value of the ratio of the specific heats calculated. T. G. Room: A general configuration in space of any number of dimensions analogous to the double-six of lines in ordinary space. In space of three dimensions, it is possible to have two sixes of lines, of which every line of one six meets all but one line of the other six. Thirty-six such double sixes can be chosen from the lines existing on a general cubic surface. In space of n dimensions it is possible to have a set of %n(n +1) lines, and a set of the same number of (n - 2) folds, corresponding to the lines in a like manner, as regards their intersections. It is now shown that in space of n dimensions it is possible, for any value of r less than n, to have a number of r-folds, and an equal number of (n - r-i) folds, with the like property of intersection of corresponding elements. In the case of the double six of lines in ordinary space, there exists a quadric in regard to which the lines of one six are the polars of the lines of the other six. It is now shown that, except for the case when one set of elements consists of points, there exists no such reciprocating quadric in space of more than three dimensions. The existence of such a double set of corresponding elements is, however, not limited to the case when these are of dual character, such as a point and an (n - i)-fold, a line and an (n - 2)-fold, and so on. In this paper a much more general theorem, establishing a double figure of elements with a like property of intersection, is obtained. - C. N. Hinshelwood and W. K. Hutchison: A comparison between unimolecular and bimolecular gaseous reactions. The thermal decomposition of gaseous acetal-dehyde. The thermal decomposition of acetaldehyde in the gaseous state has been investigated over the temperature range 430°-592° C. The reaction is bimolecular, and under the conditions of the experiments, practically entirely homogeneous. The rate of reaction can be calculated from the equation</abstract><doi>10.1038/117841b0</doi></addata></record> |
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