Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 3
... complete removal of the sulphuric acid cannot be effected even when the ignition process is repeated . Moreover , as we have found , niobic acid can never be completely precipitated by boiling with sulphuric acid , and it is almost ...
... complete removal of the sulphuric acid cannot be effected even when the ignition process is repeated . Moreover , as we have found , niobic acid can never be completely precipitated by boiling with sulphuric acid , and it is almost ...
Strona 7
... complete dry- ness . Uranium and the alkalis are extracted by water containing a little ammonium nitrate . The vanadium , in acid solution , is reduced with sulphur dioxide , and the uranium with zinc and sulphuric acid , after which ...
... complete dry- ness . Uranium and the alkalis are extracted by water containing a little ammonium nitrate . The vanadium , in acid solution , is reduced with sulphur dioxide , and the uranium with zinc and sulphuric acid , after which ...
Strona 8
... complete in a half hour , and more often in fifteen minutes on this quantity of uranium , o'2 grm . was easily reduced in this manner in forty - five minutes . The conclusion is that a solution more nearly neutral is more desirable for ...
... complete in a half hour , and more often in fifteen minutes on this quantity of uranium , o'2 grm . was easily reduced in this manner in forty - five minutes . The conclusion is that a solution more nearly neutral is more desirable for ...
Strona 17
... complete solution of the metal in each instance before it is determined . The authors have very thoroughly tested the method , and ob- tained better results with it than with other technical methods . The details follow : - Copper ...
... complete solution of the metal in each instance before it is determined . The authors have very thoroughly tested the method , and ob- tained better results with it than with other technical methods . The details follow : - Copper ...
Strona 34
... complete , the operation may be considered finished . Fill a 500 cc . beaker half full of cold water and transfer the cold crucible containing the melt to it . Care should be taken at this point as the reaction between the peroxide and ...
... complete , the operation may be considered finished . Fill a 500 cc . beaker half full of cold water and transfer the cold crucible containing the melt to it . Care should be taken at this point as the reaction between the peroxide and ...
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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