British Abstracts: Pure chemistry and physiology. ser. A1929 |
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... obtained for each of the other rings . By sublimation of tetracyclopentadiene small ( 0.1 mm . ) laminæ are obtained from which by X - ray and optical examination it is deduced that the crystal is ortho- gonal and either hexagonal or ...
... obtained for each of the other rings . By sublimation of tetracyclopentadiene small ( 0.1 mm . ) laminæ are obtained from which by X - ray and optical examination it is deduced that the crystal is ortho- gonal and either hexagonal or ...
Trang 329
... obtained . aß - Di - NN ' - 2 : 5 - dimethyl- pyrrylethane gives a compound , 2SnCl4 , C14H20N2 , for which a ... obtained by Tschelincev ( A. , 1917 , i , 91 , 93 ) does not add tin tetrachloride , whereas that obtained from ...
... obtained . aß - Di - NN ' - 2 : 5 - dimethyl- pyrrylethane gives a compound , 2SnCl4 , C14H20N2 , for which a ... obtained by Tschelincev ( A. , 1917 , i , 91 , 93 ) does not add tin tetrachloride , whereas that obtained from ...
Trang 710
... obtained by reduction with sodium hyposulphite from II ( 62 % yield ) or III , and by simultaneous hydrolysis and reduction of I with sodium hydroxide and sodium hyposulphite at 90 ° , as an orange , amorphous solid insoluble in sodium ...
... obtained by reduction with sodium hyposulphite from II ( 62 % yield ) or III , and by simultaneous hydrolysis and reduction of I with sodium hydroxide and sodium hyposulphite at 90 ° , as an orange , amorphous solid insoluble in sodium ...
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A. A. ELDRIDGE absorption acetic acid acetic anhydride acetone acetyl action activity alkali aluminium Amer ammonia ammonium amount anhydride aqueous solution atoms bands barium benzene Biochem Biol bromide C. R. HARINGTON calcium carbon dioxide catalyst Chem CHEMICAL ABSTRACTS Chim chloroform coefficient colloidal colour compound Compt concentration constant containing converted copper corresponding crystals curves decomp decomposition decrease derivative determined dextrose dilute effect electrolytes electrons ester ether formation formed gives heated hydrate hydrochloric acid hydrogen chloride hydrolysis increase iodide iodine ionisation ions ketone liquid magnesium measured mercury metal method methyl alcohol mixture molecular molecules N. M. BLIGH nitrate nitrogen obtained oxide oxidised oxygen peroxide phenyl phosphate Physik potassium hydroxide precipitated prepared presence pressure Proc protein pyridine reaction reduced rend S. K. TWEEDY salts silver sodium hydroxide sols soluble spectra spectrum substance sulphate sulphide sulphuric acid temperature vapour velocity wave-length whilst X-ray yields Zentr zinc