Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 2
... passed without their testi- mony to the unforeseen conclusion of many con- troversies , the superseding of methods at one time regarded as infallible , and the overthrow of hotly supported theories . The Editor can but hope that the ...
... passed without their testi- mony to the unforeseen conclusion of many con- troversies , the superseding of methods at one time regarded as infallible , and the overthrow of hotly supported theories . The Editor can but hope that the ...
Strona 7
... passed . In some cases 2 cc . of free acid were added to 95 cc . of water , and in other cases I cc . was sufficient to effect the reduction . About 5 cc . of concentrated sul- phuric acid were added when the reduction was thought to be ...
... passed . In some cases 2 cc . of free acid were added to 95 cc . of water , and in other cases I cc . was sufficient to effect the reduction . About 5 cc . of concentrated sul- phuric acid were added when the reduction was thought to be ...
Strona 9
... passed in , and when the colour indicates that the vanadium is reduced the solution is boiled and a rapid current of carbon dioxide passed through the boiling solution to expel the last traces of the sulphur dioxide . The titration is ...
... passed in , and when the colour indicates that the vanadium is reduced the solution is boiled and a rapid current of carbon dioxide passed through the boiling solution to expel the last traces of the sulphur dioxide . The titration is ...
Strona 19
... passed through a Brown assay furnace , entering through a hole cut in the back , and passing out the door with the end nearer the cup ample heat without the use of a blast . The pipe extended some inches from the furnace , acting as a ...
... passed through a Brown assay furnace , entering through a hole cut in the back , and passing out the door with the end nearer the cup ample heat without the use of a blast . The pipe extended some inches from the furnace , acting as a ...
Strona 28
... passed in to precipitate the tantalum , and the liquid treated as described above . If titanium is still present in the filtrate , sulphuretted hydrogen must be passed in , and the precipitate of titanium formed filtered off . Then both ...
... passed in to precipitate the tantalum , and the liquid treated as described above . If titanium is still present in the filtrate , sulphuretted hydrogen must be passed in , and the precipitate of titanium formed filtered off . Then both ...
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acetic acid action alcohol alkaline aluminium ammonia ammonium amount analysis apparatus atomic weight B.Sc barium boiling bromide calcium calculated carbon dioxide cent Chem chemical Chemistry chemists chloride colour comet compounds concentrated condensation containing copper crystalline D.Sc decomposed derivatives determination dilute dissolved distilled ether ethyl evaporated excess experiments filter filtrate flask formed formula gives gold grms heated hydrochloric acid hydrogen hydroxide invertase iodide iodine iron J. J. Thomson ketone liquid melting metal method mgrms mineral mixture molecular molecules muriatic niobic nitrate nitric acid obtained oxide oxidised oxygen paper perchloric acid permanganate phosphorus platinum potassium precipitate prepared present Prof pure quantity reaction reduced residue salt sample scandium silver phosphate Society sodium sodium carbonate soluble substance sugar sulphate sulphide sulphuric acid tantalic acid tantalum telluride tellurium temperature theory tion titanic acid titanium tube vanadium vapour washed ytterbium zinc