The Chemical News and Journal of Physical Science, Volumes 27-28Griffin, Bohn and Company, 1773 - Chemistry |
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Page 1
... temperature and under pressure , far from yielding exclusively methyl- and dimethylaniline , as has been formerly believed , is capable of causing methylation of the phenyl group , and thus producing quite a series of higher homologues ...
... temperature and under pressure , far from yielding exclusively methyl- and dimethylaniline , as has been formerly believed , is capable of causing methylation of the phenyl group , and thus producing quite a series of higher homologues ...
Page 2
... temperature be then raised to the melting - point of is readily separated by distillation of the product with an lead ( 335 ) a further change is manifested by the amor- alkali . The base thus liberated has the V.W. o'9293 , and phous ...
... temperature be then raised to the melting - point of is readily separated by distillation of the product with an lead ( 335 ) a further change is manifested by the amor- alkali . The base thus liberated has the V.W. o'9293 , and phous ...
Page 3
... temperature . Since it was only necessary to establish the degree of substitution the first product of methylation was at once submitted to a second treatment ; this second methylation likewise commenced at the common temperature , but ...
... temperature . Since it was only necessary to establish the degree of substitution the first product of methylation was at once submitted to a second treatment ; this second methylation likewise commenced at the common temperature , but ...
Page 16
... temperature . The residue , consisting of the paraffine , is then weighed , and the stearic acid is estimated by difference . ON THE MEANS OF REGULATING GAS - FLAMES SO AS TO OBTAIN A CONSTANT TEMPERATURE HIGHER THAN THE BOILING - POINT ...
... temperature . The residue , consisting of the paraffine , is then weighed , and the stearic acid is estimated by difference . ON THE MEANS OF REGULATING GAS - FLAMES SO AS TO OBTAIN A CONSTANT TEMPERATURE HIGHER THAN THE BOILING - POINT ...
Page 17
... temperature of the air - bath up to 350 ° by the use of four Bunsen burners , which temperature could be kept up constantly with very slight variations ; with five such burners I could bring the temperature up to 362 ° . It is of course ...
... temperature of the air - bath up to 350 ° by the use of four Bunsen burners , which temperature could be kept up constantly with very slight variations ; with five such burners I could bring the temperature up to 362 ° . It is of course ...
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acetic acid action alcohol alkaline alumina ammonia analysis aniline apparatus appears applied arsenic acid Assays atoms barium baryta body boiling bromine calcium carbonic acid caustic cent chemical chemistry chemists chloric acid chloride coal colour composition compounds containing converted copper crystallisation crystals cymene decomposed decomposition deposit dilute dissolved distilled employed ether evaporation experiments filtered flask formation formed formula furnace fused glass heat hydrate hydrochloric acid hydrogen Improvements insoluble iodide iron Laboratory lime liquid magnesia manganese manufacture matter metallic method methyl mineral mixture nitrate nitric acid nitrogen observed obtained ordinary oxalic oxide oxidising oxygen paper PATENTS phosphate phosphoric acid potash potassa potassium precipitate prepared present produced pure pyrites quantity reaction Royal salt sample silicate silver Society soda sodium soluble solution substance sulphate sulphide sulphuretted hydrogen sulphuric acid temperature tion toluidine treated tube vapour washed weight yields zinc
Popular passages
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