Chemical News and Journal of Industrial Science, Tomy 103-104Chemical news office., 1911 |
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Strona 1
... material used was Kahlbaum's product once re- crystallised from hot benzol . To test the relative efficiency of sodium and potassium in their capacity as reducing agents , an analysis of chlor- benzol was carried out exactly as above ...
... material used was Kahlbaum's product once re- crystallised from hot benzol . To test the relative efficiency of sodium and potassium in their capacity as reducing agents , an analysis of chlor- benzol was carried out exactly as above ...
Strona 31
... material did more harm than good . On account of the lightness of aluminium , charcoal does not readily free itself , and is apt to become entangled in the metal and produce small black spots in the casting . It is within the past few ...
... material did more harm than good . On account of the lightness of aluminium , charcoal does not readily free itself , and is apt to become entangled in the metal and produce small black spots in the casting . It is within the past few ...
Strona 32
... material is unnecessary . * CHEMICAL NEWS , Jan. 20 , 1911 Reduction of Tin. was to melt salt in a clay crucible and then drop in the weighed sample of copper . After allowing it to remain for a short time , the crucible was cooled and ...
... material is unnecessary . * CHEMICAL NEWS , Jan. 20 , 1911 Reduction of Tin. was to melt salt in a clay crucible and then drop in the weighed sample of copper . After allowing it to remain for a short time , the crucible was cooled and ...
Strona 33
... materials containing iron , and have invariably found it to be followed by good results . Necessity of Charcoal . - I ... material for this purpose . It should be coarsely granulated , and not powdered , so as to allow its covering the ...
... materials containing iron , and have invariably found it to be followed by good results . Necessity of Charcoal . - I ... material for this purpose . It should be coarsely granulated , and not powdered , so as to allow its covering the ...
Strona 37
... material , and measurement of the resulting loss of weight ; sometimes the water driven off is collected and weighed . Often , however , the material dealt with is such that , when it is heated , it gives off vapours other than water ...
... material , and measurement of the resulting loss of weight ; sometimes the water driven off is collected and weighed . Often , however , the material dealt with is such that , when it is heated , it gives off vapours other than water ...
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absorption acetic acid action alcohol alkali alloy aluminium amalgam ammonia ammonium amount analysis apparatus aqueous atomic weight B.Sc benzene boiling bromine bulb calcium carbon carbon dioxide cent cerium Chem chemical chemistry chemists chloride cobalt colour compounds concentrated condenser constant containing copper crucible crystallisation crystals D.Sc decomposed decomposition density determined dilute dioxide dissolved distilled effect electric electrolyte ether ethyl evaporated experiments filtered flask formed fractions gases gives grms heat hemolysis hydrate hydrazine hydrochloric acid hydrogen hydrogen chloride hydroxide investigation iodide iron laboratory liquid melting mercury metal method mgrms mixture molecular molecules neodymium nitrate nitric acid nitrogen obtained ordinary oxide oxidised oxygen paper platinum potassium praseodymium precipitate prepared present pressure Prof pure quantity radium reaction reagent reduced residue salt sample silver Society sodium soluble solution solvent substances sulphate sulphuric acid temperature theory tion tube vapour volume zinc