Chemical News and Journal of Physical Science, Tom 115Chemical news office., 1917 |
Z wnętrza książki
Wyniki 1 - 5 z 84
Strona 6
... sulphuric acids , and the residue was returned to the cell for further electrolysis . The amalgam finally was washed with alcohol , and dried in a vacuum , while the electrolyte was evaporated and a slight residue of zinc sulphate was ...
... sulphuric acids , and the residue was returned to the cell for further electrolysis . The amalgam finally was washed with alcohol , and dried in a vacuum , while the electrolyte was evaporated and a slight residue of zinc sulphate was ...
Strona 7
... sulphuric acid in excess of the amount necessary to convert the bromide to sulphate was added , as well as nitric acid , and the solution was gently heated When the weight of the salt had been determined , the on an electric stove in ...
... sulphuric acid in excess of the amount necessary to convert the bromide to sulphate was added , as well as nitric acid , and the solution was gently heated When the weight of the salt had been determined , the on an electric stove in ...
Strona 8
... sulphuric acid , returned to the cell , and electrolysis repeated , the total weight of zinc obtained was never reduced by the process . The experiments in which this modification of the pro- cedure was employed are indicated in the ...
... sulphuric acid , returned to the cell , and electrolysis repeated , the total weight of zinc obtained was never reduced by the process . The experiments in which this modification of the pro- cedure was employed are indicated in the ...
Strona 10
... sulphuric acid was 5 molar were made with ammonium ferric alum , after special tests had shown that the two alums gave practically identical results . + EXPERIMENTAL Part . The method and apparatus used have been described in a previous ...
... sulphuric acid was 5 molar were made with ammonium ferric alum , after special tests had shown that the two alums gave practically identical results . + EXPERIMENTAL Part . The method and apparatus used have been described in a previous ...
Strona 20
... sulphuric acid and coloured red by thiocyanate , retained its colour for many hours , but bleached rapidly as soon as a little potassium chloride was added , thus showing conspicuously the much greater velocity in the presence of ...
... sulphuric acid and coloured red by thiocyanate , retained its colour for many hours , but bleached rapidly as soon as a little potassium chloride was added , thus showing conspicuously the much greater velocity in the presence of ...
Inne wydania - Wyświetl wszystko
Kluczowe wyrazy i wyrażenia
acetic alcohol alkali ammonia amount amylase analysis analytical annealing apparatus application atomic B.Sc boiling British calcium carbon cent Chem CHEMICAL NEWS Office chemistry chemists chert chloride colloidal colour compounds concentration containing copper crystallisation determined dilute dissolved distilled dyes dysprosium engineering erbium evaporated experiments Explosives Farringdon Street ferric filtered fractions glass grains grms heat hydrochloric acid hydrogen hydrogen peroxide hydroxide increase industry Institution iron J. J. THOMSON Journ Laboratory lead liquid London maltose manufacture material matter metal method mixture molar Newcastle Street nickel nitrate nitric acid nitrile nitrogen obtained oxide oxidising paper peroxide phosphate potassium precipitate present production Prof pure pyrites reaction reagent Research salt samples Society sodium sodium hydroxide soil soluble solution starch steel substances sulphate sulphide sulphuric acid superphosphate supply Table temperature tion toluene trinitrotoluene velocity volume weight zinc ΙΟ