The Owens College Junior Course of Practical Chemistry |
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Page 16
... 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 reactions may ...
... 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 reactions may ...
Page 33
... compound called iodide of starch , which has a dark blue colour . Powder a piece of starch ( about the size of a pea ) in a mortar , stir it up with about 25 c . c . of cold water , and then heat the mixture ( preferably in an ...
... compound called iodide of starch , which has a dark blue colour . Powder a piece of starch ( about the size of a pea ) in a mortar , stir it up with about 25 c . c . of cold water , and then heat the mixture ( preferably in an ...
Page 42
... compound , and heat again in the oxidizing flame of the blow - pipe ; by In a similar way , beads are also made with borax or microcosmic salt , instead of sodium bicarbonate . this means sodium manganate is formed , which colours the ...
... compound , and heat again in the oxidizing flame of the blow - pipe ; by In a similar way , beads are also made with borax or microcosmic salt , instead of sodium bicarbonate . this means sodium manganate is formed , which colours the ...
Page 43
... Compounds reduced to metal when heated with a mixture of KCN and NaHCO3 in reducing flame : Tin . White . Copper . Red . ( c ) Compounds reduced to metal when heated on charcoal with reducing agents , but which at once volatilize ...
... Compounds reduced to metal when heated with a mixture of KCN and NaHCO3 in reducing flame : Tin . White . Copper . Red . ( c ) Compounds reduced to metal when heated on charcoal with reducing agents , but which at once volatilize ...
Page 44
... Compounds which when fused in a borax bead impart to it a characteristic colour : Iron . Cobalt . Nickel . Manganese . Chromium . Copper . Yellow . Blue . Reddish yellow . Amethyst . Green . Blue . ( h ) Compounds which impart a ...
... Compounds which when fused in a borax bead impart to it a characteristic colour : Iron . Cobalt . Nickel . Manganese . Chromium . Copper . Yellow . Blue . Reddish yellow . Amethyst . Green . Blue . ( h ) Compounds which impart a ...
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Common terms and phrases
acetic acid acid solutions added AgNO3 alkaline ammonia ammonium antimony aqua regia arsenic BaCO3 Barium black precipitate blue boiling borax brown calcium Cambridge carbon dioxide chloride cipitate Cobalt colour compounds conducting tube copper Crown 8vo decomposed dissolved Edition ENGLISH evaporate Extra fcap fcap filter FILTRATE flask Fused grams green group reagents H₂O H₂S Heated on charcoal hydrate hydrochloric acid hydrogen insoluble iodide iodine late Fellow LATIN manganese manganese dioxide mercury mixture moistened NaHO neutral solutions NH)HO NH4)2S produces NH4Cl nitrate nitric acid observe obtained Owens College oxalic oxalic acid oxygen phosphorus platinum potassium chlorate preparation produces a precipitate produces a white Prof Professor reaction reducing flame residue revised salt School silver sodium solu soluble soluble in excess soluble in HCl soluble in HNO3 substance sulphate sulphide sulphuric acid Tartaric acid Thallium tion Trinity College white precipitate yellow precipitate yields zinc
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