The Owens College Junior Course of Practical Chemistry |
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Page 35
... lead or 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 ...
... lead or 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 ...
Page 43
... lead on a piece of charcoal in the oxidizing blow - pipe flame . Observe the yellow incrustation on the charcoal produced by the oxidation of the lead to litharge ( PbO ) . 55. Blow - pipe reactions for the commonly occurring metals ...
... lead on a piece of charcoal in the oxidizing blow - pipe flame . Observe the yellow incrustation on the charcoal produced by the oxidation of the lead to litharge ( PbO ) . 55. Blow - pipe reactions for the commonly occurring metals ...
Page 44
... Lead bead soluble in HNO3 . Solution yields with dilute H2SO , heavy white precipitate of PbSO4 . Bismuth bead soluble in HNO3 . Solution evapo- rated with HCl yields with H2S black precipitate of BigS3 . Antimony bead soluble in HNO3 ...
... Lead bead soluble in HNO3 . Solution yields with dilute H2SO , heavy white precipitate of PbSO4 . Bismuth bead soluble in HNO3 . Solution evapo- rated with HCl yields with H2S black precipitate of BigS3 . Antimony bead soluble in HNO3 ...
Page 49
... films : -ANTIMONY , ARSENIC , BISMUTH , MERCURY , THALLIUM , CADMIUM , ZINC , INDIUM , and LEAD . They may be further distinguished by the following tests : -- 2 Antimony . Black film , thin part brown ) Arsenic FLAME REACTIONS . 49.
... films : -ANTIMONY , ARSENIC , BISMUTH , MERCURY , THALLIUM , CADMIUM , ZINC , INDIUM , and LEAD . They may be further distinguished by the following tests : -- 2 Antimony . Black film , thin part brown ) Arsenic FLAME REACTIONS . 49.
Page 52
... Lead . - Reduced on charcoal splinter , yields soft ductile metallic beads , soluble in HNO3 . Add H2SO4 , yields white precipitate of PbSO4 . Copper - Reduced on charcoal splinter , yields ductile metallic beads of a red colour ...
... Lead . - Reduced on charcoal splinter , yields soft ductile metallic beads , soluble in HNO3 . Add H2SO4 , yields white precipitate of PbSO4 . Copper - Reduced on charcoal splinter , yields ductile metallic beads of a red colour ...
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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