The Owens College Junior Course of Practical ChemistryMacmillan and Company, 1887 - 201 páginas |
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Página 3
... colour , and a ring of minute globules of mercury soon forms on the cool part of the tube . That the tube contains oxygen may be shown by plunging a glowing chip of wood into it , and observing that the wood will be rekindled . It is ...
... colour , and a ring of minute globules of mercury soon forms on the cool part of the tube . That the tube contains oxygen may be shown by plunging a glowing chip of wood into it , and observing that the wood will be rekindled . It is ...
Página 8
... colour is changed to red . 11. When phosphorus is burned in oxygen , phosphorus pentoxide ( or phosphoric anhydride ) is produced . This is not a gaseous body like the dioxides of sul- phur and carbon , but is a white solid substance ...
... colour is changed to red . 11. When phosphorus is burned in oxygen , phosphorus pentoxide ( or phosphoric anhydride ) is produced . This is not a gaseous body like the dioxides of sul- phur and carbon , but is a white solid substance ...
Página 9
... colour from blue to red . 12. Presence of oxygen in air . Oxygen is present in the air diluted with another gas called nitrogen . In one hundred volumes of air , about twenty - one consist of oxygen , and seventy - nine of nitrogen ...
... colour from blue to red . 12. Presence of oxygen in air . Oxygen is present in the air diluted with another gas called nitrogen . In one hundred volumes of air , about twenty - one consist of oxygen , and seventy - nine of nitrogen ...
Página 15
... colour will speedily disappear owing to the oxidizing action of the nitric acid . ( b ) Place a few bits of copper turnings in a test- tube , cover them with water , and add a little nitric acid . The copper soon begins to dissolve ...
... colour will speedily disappear owing to the oxidizing action of the nitric acid . ( b ) Place a few bits of copper turnings in a test- tube , cover them with water , and add a little nitric acid . The copper soon begins to dissolve ...
Página 16
... coloured compound with the ferrous sulphate . On shaking the tube , nitrogen di- oxide will escape with effervescence , and the black ring will disappear . Retain a portion of nitric acid for 27 . 23. Tests for nitrates . The same ...
... coloured compound with the ferrous sulphate . On shaking the tube , nitrogen di- oxide will escape with effervescence , and the black ring will disappear . Retain a portion of nitric acid for 27 . 23. Tests for nitrates . The same ...
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Términos y frases comunes
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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