Chemical News and Journal of Industrial Science, Tomy 101-102Chemical news office., 1910 |
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Strona 3
... iron sulphide formed ; after filtering and washing he obtained the pure acids . Rose removed the iron in the same way as Marignac . But this method of separating iron involves the wastage of much material , as the hydrochloric acid ...
... iron sulphide formed ; after filtering and washing he obtained the pure acids . Rose removed the iron in the same way as Marignac . But this method of separating iron involves the wastage of much material , as the hydrochloric acid ...
Strona 4
... iron ; they were fused with potassium sulphate , and the solution tested with potassium sulphocyanide , when the absence of iron was proved by the non - appearance of a red coloration . The ferrous sulphide thus precipitated was free ...
... iron ; they were fused with potassium sulphate , and the solution tested with potassium sulphocyanide , when the absence of iron was proved by the non - appearance of a red coloration . The ferrous sulphide thus precipitated was free ...
Strona 7
... iron and uranium undissolved . This precipitate , after washing , is dissolved in hot dilute nitric acid , and the iron precipitated with ammonium hydroxide , the uranium being kept in solution by the addition of a large excess of ...
... iron and uranium undissolved . This precipitate , after washing , is dissolved in hot dilute nitric acid , and the iron precipitated with ammonium hydroxide , the uranium being kept in solution by the addition of a large excess of ...
Strona 9
... iron precipitate can be dissolved , and the iron estimated in the usual way if desired . The volume at this point cannot conveniently be more than 75 cc . if the reduction with the spiral is to be carried on in one tube . If the ore is ...
... iron precipitate can be dissolved , and the iron estimated in the usual way if desired . The volume at this point cannot conveniently be more than 75 cc . if the reduction with the spiral is to be carried on in one tube . If the ore is ...
Strona 27
... iron , aluminium , and calcium . Silica and tungsten could not be detected . ( Further investigations are in progress of another constituent present in small quantities ) . The quantitative analysis was performed as follows : - A ...
... iron , aluminium , and calcium . Silica and tungsten could not be detected . ( Further investigations are in progress of another constituent present in small quantities ) . The quantitative analysis was performed as follows : - A ...
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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