Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 2
... present to be unrelated and isolated facts . The time seems ripe for fresh generalisations . And how has the ... present in this niobic acid were titanium , tin , iron , and ammonia , the last in all probability due to the fact that the ...
... present to be unrelated and isolated facts . The time seems ripe for fresh generalisations . And how has the ... present in this niobic acid were titanium , tin , iron , and ammonia , the last in all probability due to the fact that the ...
Strona 4
... present research was completed before we knew of Giles's publication ) . It was found to be preferable to lead sulphuretted hydrogen into the warmed ammoniacal solution until it was saturated ; the ferrous sulphide thus formed can be ...
... present research was completed before we knew of Giles's publication ) . It was found to be preferable to lead sulphuretted hydrogen into the warmed ammoniacal solution until it was saturated ; the ferrous sulphide thus formed can be ...
Strona 10
... present in small amount , but no evidence could be obtained of the presence of a glucoside . The emodin monomethyl ether which was isolated was identical with that obtained by Perkin and Hummel from Ventilago madraspatana ( Trans ...
... present in small amount , but no evidence could be obtained of the presence of a glucoside . The emodin monomethyl ether which was isolated was identical with that obtained by Perkin and Hummel from Ventilago madraspatana ( Trans ...
Strona 13
... present in the niobic acid can be determined if the directions given by the author are followed . Marignac prepared a table for calculating the total amount of titanium present in a mixture of the acid earths , based upon the relations ...
... present in the niobic acid can be determined if the directions given by the author are followed . Marignac prepared a table for calculating the total amount of titanium present in a mixture of the acid earths , based upon the relations ...
Strona 14
... present some crystals of sodium nitrate ( not potassium nitrate ) are thrown in , at the most enough to cover the tip of a knife - blade ; the melt is again covered , and heated with a long blowpipe flame , so that it touches the edge ...
... present some crystals of sodium nitrate ( not potassium nitrate ) are thrown in , at the most enough to cover the tip of a knife - blade ; the melt is again covered , and heated with a long blowpipe flame , so that it touches the edge ...
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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