The Owens College Junior Course of Practical ChemistryMacmillan and Company, 1887 - 201 sider |
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Side 36
... green . In both cases the sulphur dioxide has acted as a reducing agent , reducing the nitric acid to a lower stage of oxi- dation , and the potassium chromate to a chromium salt of a green colour ; while in each case the sulphur ...
... green . In both cases the sulphur dioxide has acted as a reducing agent , reducing the nitric acid to a lower stage of oxi- dation , and the potassium chromate to a chromium salt of a green colour ; while in each case the sulphur ...
Side 43
Francis Jones. this means sodium manganate is formed , which colours the bead bright green . ( 6 ) Heat a small portion of metallic lead on a piece of charcoal in the oxidizing blow - pipe flame . Observe the yellow incrustation on the ...
Francis Jones. this means sodium manganate is formed , which colours the bead bright green . ( 6 ) Heat a small portion of metallic lead on a piece of charcoal in the oxidizing blow - pipe flame . Observe the yellow incrustation on the ...
Side 44
... Green . ( h ) Compounds which impart a characteristic colour to any non - luminous flame : Barium Green . Strontium . Calcium . Crimson . Red . Potassium . Sodium . Violet . Yellow . 56. Having found out approximately by these reac ...
... Green . ( h ) Compounds which impart a characteristic colour to any non - luminous flame : Barium Green . Strontium . Calcium . Crimson . Red . Potassium . Sodium . Violet . Yellow . 56. Having found out approximately by these reac ...
Side 45
... green solu- tion , which gives a reddish yellow bead when fused with borax . ( e ) Cadmium oxide distinguished by its brown colour on the charcoal . Zinc oxide distinguished by its yellow colour while hot , turning white when cold ...
... green solu- tion , which gives a reddish yellow bead when fused with borax . ( e ) Cadmium oxide distinguished by its brown colour on the charcoal . Zinc oxide distinguished by its yellow colour while hot , turning white when cold ...
Side 46
... green in either oxidizing or reducing flame . Copper borax bead , blue or greenish - blue in the oxidizing flame , becomes colourless in the reducing flame . ( See also under b . ) ( h ) Barium salts colour the non - lumi- nous gas ...
... green in either oxidizing or reducing flame . Copper borax bead , blue or greenish - blue in the oxidizing flame , becomes colourless in the reducing flame . ( See also under b . ) ( h ) Barium salts colour the non - lumi- nous gas ...
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Vanlige uttrykk og setninger
acetic acid added AgNO3 alkaline ammonia ammonium antimony aqua regia arsenic barium black precipitate blue colour boiling borax bromide brown calcium carbon dioxide charcoal splinter chloride cipitate compounds conducting tube copper Crown 8vo crucible crystals decomposed dilute solutions dissolved distilled drop Edition evaporate Fcap filter filtrate flask fused glass grams group reagents H₂O H₂S hydrate hydrochloric acid hydrogen insoluble iodide iodine iron liquid manganese manganese dioxide mercury metallic mixture moistened NaHO neutral solutions NH)HO NH4)2S produces NH4Cl nitric acid numerous Illustrations observe obtained oxalic acid oxygen phosphorus platinum porcelain potassium chlorate powder produces a precipitate produces a white Professor reaction reducing flame residue salt silver chloride silver nitrate sodium sodium carbonate solu soluble soluble in excess soluble in HCl soluble in HNO3 substance sulphate sulphide sulphuric acid tartaric acid tion violet wash Weigh white precipitate yellow precipitate yields zinc
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