The Owens College Junior Course of Practical Chemistry |
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... of Weights and Measures C. Treatment of Silver Residues . D. Treatment of Platinum Residues Questions and Exercises . • INDEX . • 173 176 · · . 177 180 " 181 199 JUNIOR COURSE OF : LABORATORY PRACTICE . PART I. PREPARATION viii CONTENTS .
... of Weights and Measures C. Treatment of Silver Residues . D. Treatment of Platinum Residues Questions and Exercises . • INDEX . • 173 176 · · . 177 180 " 181 199 JUNIOR COURSE OF : LABORATORY PRACTICE . PART I. PREPARATION viii CONTENTS .
Page 35
... platinum dish , pour over it some strong sulphuric acid , and heat gently . Observe the fumes of hydrofluoric acid which come off , and then place the waxed glass plate across the dish so as to be exposed to the gas , taking care that ...
... platinum dish , pour over it some strong sulphuric acid , and heat gently . Observe the fumes of hydrofluoric acid which come off , and then place the waxed glass plate across the dish so as to be exposed to the gas , taking care that ...
Page 42
... platinum wire , heat it , and dip it while hot in some sodium bicarbonate , so as to cause a small quantity to adhere to the wire ; now heat it with the blow - pipe flame until it is fused . * Then place on it a minute quantity of any ...
... platinum wire , heat it , and dip it while hot in some sodium bicarbonate , so as to cause a small quantity to adhere to the wire ; now heat it with the blow - pipe flame until it is fused . * Then place on it a minute quantity of any ...
Page 50
... PLATINUM , IRON , NICKEL , and COBALT . They may be further distin guished as follows : - Copper . Red bead , soluble in HNO ̧ Tin . Silver . White bead " " " " Gold . Yellow bead , insoluble Platinum . Non - magnetic powder Iron ...
... PLATINUM , IRON , NICKEL , and COBALT . They may be further distin guished as follows : - Copper . Red bead , soluble in HNO ̧ Tin . Silver . White bead " " " " Gold . Yellow bead , insoluble Platinum . Non - magnetic powder Iron ...
Page 51
... platinum wire coiled round it ) just below a small porcelain basin filled with water , yields grey film , which , on rubbing with a piece of filter paper , is col- lected into small globules . If the quantity of mercury be large ...
... platinum wire coiled round it ) just below a small porcelain basin filled with water , yields grey film , which , on rubbing with a piece of filter paper , is col- lected into small globules . If the quantity of mercury be large ...
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Common terms and phrases
acetic acid acid solutions added AgNO3 produces alkaline ammonia ammonium antimony aqua regia arsenic BaCl BaCl2 barium beaker black precipitate blow-pipe blue coloration boiling borax bromides brown CaCl2 calcium chlorate cipitate cold colour compounds copper Crown 8vo crucible crystals decomposed dilute solutions dissolved drop evolved FeSO4 filter filtrate flask Fused glass gramme grams group reagents H₂O H₂S H₂SO hydrate hydrochloric acid hydrogen insoluble iodide iodine iron liquid litre manganese manganese dioxide mercury mixture moistened NaHO neutral solutions NH)HO NH4)2S produces NH4Cl nitric acid obtained oxalic acid oxide oxygen phosphorus platinum porcelain potassium potassium chlorate powder produces a precipitate produces a white reactions reducing flame residue salt separation silver chloride silver nitrate sodium sodium carbonate solu soluble soluble in excess soluble in HCl soluble in HNO3 strontium substance sulphate sulphide sulphuric acid Tartaric acid tion violet wash Weigh white precipitate yellow precipitate yields zinc