Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 2
... ammonium carbonate in order to remove the sulphuric acid present . It is known that it is a peculiarity of niobic acid if it is precipitated with sulphuric acid to retain the greater part of it in spite of repeated washing , and not to ...
... ammonium carbonate in order to remove the sulphuric acid present . It is known that it is a peculiarity of niobic acid if it is precipitated with sulphuric acid to retain the greater part of it in spite of repeated washing , and not to ...
Strona 3
... ammonium carbonate on ignition , in order thus to volatilise the sulphuric acid as ammonium sulphate . This method has , however , various disadvantages , for it is impossible , especially on stirring , to prevent the niobic acid from ...
... ammonium carbonate on ignition , in order thus to volatilise the sulphuric acid as ammonium sulphate . This method has , however , various disadvantages , for it is impossible , especially on stirring , to prevent the niobic acid from ...
Strona 4
... ammonium sulphide . In presence of a little iron , or if the solution to be filtered is too warm , some of the ferrous sulphide remains dissolved in the ammonium sulphide , forming a green solution . If allowed to stand over - night ...
... ammonium sulphide . In presence of a little iron , or if the solution to be filtered is too warm , some of the ferrous sulphide remains dissolved in the ammonium sulphide , forming a green solution . If allowed to stand over - night ...
Strona 5
... ammonium sulphide and well washed , and by the colour of the remaining acid earths it may be seen whether they contain lead . It is thus evident that the removal of tin presents no difficulties . the supply water through tube a ( see ...
... ammonium sulphide and well washed , and by the colour of the remaining acid earths it may be seen whether they contain lead . It is thus evident that the removal of tin presents no difficulties . the supply water through tube a ( see ...
Strona 7
... ammonium nitrate . The vanadium , in acid solution , is reduced with sulphur dioxide , and the uranium with zinc and sulphuric acid , after which each is titrated with standard permanganate . A second method is that A. N. Finn ( Journ ...
... ammonium nitrate . The vanadium , in acid solution , is reduced with sulphur dioxide , and the uranium with zinc and sulphuric acid , after which each is titrated with standard permanganate . A second method is that A. N. Finn ( Journ ...
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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