British Abstracts: Pure chemistry and physiology. ser. A1926 |
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... alkali . On keeping the alkaline solution , a progressive displacement to the red and an increased intensity of absorption and more marked inflexions are observed ; these reach a maximum after 16 days , at 2604 , e = 30 . Crotonic acid ...
... alkali . On keeping the alkaline solution , a progressive displacement to the red and an increased intensity of absorption and more marked inflexions are observed ; these reach a maximum after 16 days , at 2604 , e = 30 . Crotonic acid ...
Trang 24
... alkali and glycerol or sugar is also discussed . L. S. THEOBALD . Behaviour of silica gel towards certain alkalis and salts in aqueous solution . W. A. PATRICK and E. H. BARCLAY ( J. Physical Chem . , 1925 , 29 , 1400-1405 ) . The ...
... alkali and glycerol or sugar is also discussed . L. S. THEOBALD . Behaviour of silica gel towards certain alkalis and salts in aqueous solution . W. A. PATRICK and E. H. BARCLAY ( J. Physical Chem . , 1925 , 29 , 1400-1405 ) . The ...
Trang 45
... alkali was effected by repeated heating to 400 ° and washing in hot water . Catalyst ( c ) , when free from alkali , gave the highest yields . No diminution in activity of the catalysts was ORGANIC CHEMISTRY . 45 The following compounds ...
... alkali was effected by repeated heating to 400 ° and washing in hot water . Catalyst ( c ) , when free from alkali , gave the highest yields . No diminution in activity of the catalysts was ORGANIC CHEMISTRY . 45 The following compounds ...
Trang 49
... alkali , one carboxyl group being eliminated ( cf. Knoevenagel , A. , 1895 , i , 48 ) . It reduces Fehling's solution , but is inert to Schiff's reagent . Its solution in very dilute alkali gives a series of characteristic colour ...
... alkali , one carboxyl group being eliminated ( cf. Knoevenagel , A. , 1895 , i , 48 ) . It reduces Fehling's solution , but is inert to Schiff's reagent . Its solution in very dilute alkali gives a series of characteristic colour ...
Trang 51
... alkali , 26-5 % of the acetone is present as the enolic form . Further increase in alkali concentration does not increase the enolisation , for which a logarithmic relationship holds from the above concentration of alkali down to 0.0021 ...
... alkali , 26-5 % of the acetone is present as the enolic form . Further increase in alkali concentration does not increase the enolisation , for which a logarithmic relationship holds from the above concentration of alkali down to 0.0021 ...
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A. A. ELDRIDGE absorption acetic acid acetic anhydride acetone action activity adsorption alcohol alkali aluminium aluminium chloride Amer ammonia ammonium anhydride aqueous solution atoms barium benzene benzyl Biochem boiling bromide calcium carbon dioxide catalyst Chem chemical chim chloric acid colloidal colour compounds concentration condensation containing converted copper corresponding crystallisation crystals curve decomp decomposition derivatives determined dextrose dilute dissociation effect electrolytes electrons ester ether ethyl ethyl alcohol F. G. WILLSON formation formed gives heated hydrate hydrazine hydrochloric acid hydrogen chloride hydrolysis increase iodide iodine ionisation ions ketone liquid magnesium mercury metals method mixture molecular molecules nickel nitrate nitric acid nitrogen obtained oxalate oxide oxidised oxygen P. W. CLUTTERBUCK phenyl Physik platinum potassium potassium hydroxide precipitate prepared presence pressure protein pyridine reaction reduced salt semicarbazone silver sodium hydroxide sols solubility spectra substances sulphate sulphide sulphuric acid temperature vapour whilst yields zinc