British Abstracts: Pure chemistry and physiology. ser. A1926 |
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... added . The separation of the copper by electro- deposition on the microanalytical scale is also de- scribed , the metal being then dissolved in nitric acid , the solution evaporated to dryness , and the copper determined by titration ...
... added . The separation of the copper by electro- deposition on the microanalytical scale is also de- scribed , the metal being then dissolved in nitric acid , the solution evaporated to dryness , and the copper determined by titration ...
Trang 53
... added , at 0 ° , to a solution of hexamethylenetetramine ( 1 part ) in water ( 3 parts ) . When added to concentrated nitric acid , the dinitrate is converted into cyclotri- methylenetrinitroamine ( cf. Henning , U.S.P. 104280 , 1899 ...
... added , at 0 ° , to a solution of hexamethylenetetramine ( 1 part ) in water ( 3 parts ) . When added to concentrated nitric acid , the dinitrate is converted into cyclotri- methylenetrinitroamine ( cf. Henning , U.S.P. 104280 , 1899 ...
Trang 84
... added , and the whole is acidified ; after 5 min . , potassium iodide is added and the liberated S. I. LEVY . iodine titrated with thiosulphate . Qualitative test to show the absence of citrate or tartrate in mixtures . J. B. PETERSON ...
... added , and the whole is acidified ; after 5 min . , potassium iodide is added and the liberated S. I. LEVY . iodine titrated with thiosulphate . Qualitative test to show the absence of citrate or tartrate in mixtures . J. B. PETERSON ...
Trang 92
... added as sulphate to rabbit serum in vitro , about 30 % , as determined by chemical or physiological methods , is inactivated in 2-6 hrs . This is confirmed by the fact that after ultrafiltration of the serum - atropine mixture about 60 ...
... added as sulphate to rabbit serum in vitro , about 30 % , as determined by chemical or physiological methods , is inactivated in 2-6 hrs . This is confirmed by the fact that after ultrafiltration of the serum - atropine mixture about 60 ...
Trang 95
... added and of the duration of the experiment . It does not occur , however , when dextrose is added . So far as can be determined by the ferric chloride colorimetric test , little or none of the added phenol disappears during ...
... added and of the duration of the experiment . It does not occur , however , when dextrose is added . So far as can be determined by the ferric chloride colorimetric test , little or none of the added phenol disappears during ...
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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